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Computing & IT
>> Telecom Abbreviations
Look through 4999 acronyms and abbreviations related to Telecom:
XFMR
— Transformer
IPB
— Invision Power Board
URL
— Universal Resource Locator
DDRS
— Dynamic Data Rate Selection
LAN
— Local Area Network
EDD
— Earliest Due Date
EBITDA
— Earnings before Interest, Taxes, Depreciation and Amortization
YTD
— Year To Date
YMMV
— Your Mileage May Vary
ETA
— Estimated Time of Arrival
CBCU
— Centralized Broadband Control Unit
GFSK
— Gaussian Frequency Shift Keying
OIC
— Oh I See
DCE
— Data Circuit-terminating Equipment
CSMA/CA
— Carrier Sense Multiple Access/Collision Avoidance
BBS
— Bulletin Board Service
XML
— Extensible Markup Language
DND
— Do Not Disturb
NMSE
— Normalized Mean Square Error
ECG
— Electrocardiogram
THX
— Thanks
C4I
— Command, Control, Communications, Computers, & Intelligence
OEM
— Original Equipment Manufacturer (usually in reference to car parts)
DWDM
— Dense Wavelength Division Multiplexing
APR
— Annual Percentage Rate
CSR
— Customer Service Representative
C3I
— Command, Control, Communications & Intelligence
LRU
— Line Replaceable Unit
ARP
— Address Resolution Protocol (ATM)
PPM
— parts per million
YGWYPF
— You Get What You Pay For
ROM
— Read-Only Memory
NB
— Nota Bene. Abbreviation of the Latin expression commonly used to emphasise the importance of a statement, literally meaning 'observe well'. Or less politely and more amusingly, No Bullshit.
BRDF
— Bidirectional Reflectance Distribution Function
FTP
— File Transfer Protocol
LASER
— Light Amplification By Stimulated Emission Of Radiation (cf. Maser)
IQ
— Intelligence Quotient
UK
— United Kingdom of Great Britain and Northern Ireland
POC
— Point Of Contact
RQMT
— Requirement
DOE
— Distributed Object Environment
BTW
— By The Way
CT
— Computed Tomography
ASAP
— As Soon As Possible (pronounced AY-sap)
CCTV
— Closed-circuit television
CU
— See You
ANSI
— American National Standards Institute, Inc.
ATM
— Automatic Teller Machine
IT
— Information Technology
IAMAI
— Internet and Mobile Association of India
RTN
— Regional Telecommunication Network
CR
— Carriage Return
ISO
— In Search Of
SYN
— Synchronous
P&L
— Profit and Loss statement
X-BAR
— Crossbar telephone exchange
CSMA/CD
— Carrier Sense Multiple Access with Collision Detection
IRC
— Internet Relay Chat
ISAR
— Inverse Synthetic-Aperture Radar
COB
— close of business (End of duty day)
PDT
— Pacific Daylight Time
FIFO
— First In, First Out
EPA
— Environmental Protection Agency (US)
CPU
— Central Processing Unit
BPM
— Beats Per Minute
TEMIP
— Telecommunications Management Information Platform
RDF
— Resource Description Framework
MAN
— Metropolitan Area Network
LED
— Light-Emitting Diode
PDF
— Portable Document Format (created by Adobe Acrobat)
SD
— Standard Deviation
S X S
— Step-by-Step
WACN ID
— Wide Area Communications Network IDentifier
RAEX
— Roaming Agreement EXchange
XA-FR
— Exchange Access Frame Relay
X-OFF
— Transmitter Off
QFSK
— Quadrature Frequency Shift Keying
ISO
— International Organization for Standardization
IP
— Internet Protocol
E-LEAD
— Ear Lead
OC-256
— Optical Carrier Signal, Level 256
PO
— Purchase Order
S-BCCH
— Short Message Service Broadcast Control Channel
CPE
— Customer Premises Equipment
UR
— Your
RFP
— Request For Proposal
FEMA
— Federal Emergency Management Agency
AC
— Alternating Current
A-KEY
— Authentication key
F2F
— Face To Face (also Meeting In Person)
QC
— Quality Control
LLC
— Limited Liability Company
ZDBOP
— Ziff-Davis Benchmark Operation
ISP
— Internet Service Provider
GUI
— Graphical User Interface (goo-ey)
PDR
— Preliminary Design Review
X-ON
— Transmitter On
ASTM
— American Society for Testing and Materials (Philadelphia, Pennsylvania)
CY
— Calendar Year
C-NBAP
— Common Node B Application Part
ATTN
— Attention
B-ICI
— Broadband Inter-Carrier Interface
FDIC
— Federal Deposit Insurance Corporation
UAX 14
— Unit Automatic eXchange type 14
DAHDI
— Digium/Asterisk Hardware Device Interface
MOU
— Memorandum of Understanding (an MOU between Food & Drug Administratin and a regulatory agency in another country allows mutual recognition of inspections)
OC-18
— Optical Carrier Signal, Level 18
CDR
— Critical Design Review
ATOM
— Any Transport over MPLS (Multi-Protocol Label Switching)
API
— Application Programming Interface
O&M
— Operation and Maintenance
VIP
— Very Important Person
CCB
— Change Control Board
EST
— Eastern Standard Time
R&D
— Research & Development
WBS
— Work Breakdown Structure
FAQ
— Frequently Asked Questions (sometimes Pronounced Fak)
BRB
— Be right back
IRR
— Internal Rate of Return
AUP
— Acceptable Use Policy
CEO
— Chief Executive Officer
BTU
— British Thermal Unit
RPM
— Revolutions Per Minute, (Rotations Per Minute)
I.LINK
— IEEE 1394, High Performance Serial Bus, implementation
MTBF
— Mean Time Before Failure
WTG
— Way To Go
IPO
— Initial Public Offering
RF
— Radio Frequency
EDI
— Electronic Data Interchange
TQM
— Total Quality Management
MLS
— Microwave Landing System
EAP
— Employee Assistance Program
AFAIK
— As Far As I Know
ASCII
— American National Standard Code for Information Interchange
WB
— Welcome Back
M-CSI
— Mobility management CAMEL (Customized Applications for Mobile network Enhanced Logic) Subscription Information
AMD
— Advanced Micro Devices, Inc. (producer of computer chips)
GSM
— Global System for Mobile Communications
PVT
— Private
ACH
— Automated Clearing House
RFQ
— Request For Quotation
D-NBAP
— Dedicated Node B Application Part
LCD
— Liquid Crystal Display
CSMA/CD
— Carrier sense multiple access / collision detection
SABGW
— System Architecture Evolution Gateway
T-IC
— T-interConnect
CV
— Curriculum Vitae
SMTP
— Simple Mail Transfer Protocol
CRT
— Cathode Ray Tube (type of TV)
DOA
— dead on arrival
SME
— Subject Matter Expert
ADSL
— Asymmetric Digital Subscriber Line
H323
— ANSI standard for format over IP
OC-9
— Optical Carrier Signal, Level 9
ATM
— Asynchronous Transfer Mode
C³CM
— Command, Control and Communications Countermeasures
FET
— Field Effect Transistor
SRAM
— Static Random Access Memory (ess-ram)
T-CARRIER
— Trunk Carrier
ABC
— activity based costing
VC-ATOD
— Virtual Clearinghouse on Alcohol, Tobacco and Other Drugs
FSAI
— Fiber Serving Area Interface
VAT
— Value Added Tax
NPV
— Net Present Value {economics}
BFI
— Brute Force and Ignorance. An expression found in everyday language since the early 1900s, meaning a heavy handed unrefined solution to a problem (especially fixing something - like bashing an electrical appliance to get it working again). In more recent
KBYTE
— Kilobyte (103)
ASA
— American Standards Association
ARPA
— Advanced Research Projects Agency (made early internet)
SLA
— Service Level Agreement
MRI
— Magnetic Resonance Imaging
ICT
— Information and Communication Technology
VPN
— Virtual Private Network (ATM)
ECU
— Electronic Control Unit
MDF
— Main Distribution Frame
SOW
— Statement Of Work
GIS
— Geographic Information System
IRL
— In Real Life
VAZO
— Violating All-Zero Octet
CONG
— Congestion message
CSMA
— Carrier Sense Multiple Access
ACE
— Access Control Entry
RFO
— Reason For Outage
ASME
— American Society of Mechanical Engineers
MOB
— Mobile
AM
— Ante Meridian
RQMTS
— Requirements
HTTP
— Hypertext Transfer Protocol
EOM
— End Of Message
TBD
— To Be Determined
PCB
— printed circuit board
EU
— European Union (1994; formerly referred to as the EEC or EC)
RFI
— Request For Information. Sales department shorthand. Special priority when use in conjunction with RFN (see below).
POS
— Point Of Sale.Retail term, being the physical point at which products are displayed on shelves or paid for at the checkout, as in the EPOS acronym.
ABI
— Application Binary Interface
AIR
— Account Information and Refill
DOD
— United States Department of Defense
DBORS
— Data Base of Records
PDA
— Personal Digital Assistant
PUHU
— Pick Up Hang Up
GPS
— Global Positioning System (ex-NAVSTAR)
DARPA
— Defense Advanced Research Projects Agency (US)
JV
— Joint Venture
MIS
— Management Information System (OSHA)
ACK
— Acknowledge (telecommunications; Cf. NAK)
WWW
— World Wide Web
CD
— Compact Disc
SWAG
— Scientific Wild Ass Guess
TNX
— Thanks
GATT
— General Agreement on Tariffs and Trade (government)
ESA
— European Space Agency
EDS
— Electronic Data Systems Corporation
ATA
— Area Transportation Authority
IVR
— Interactive Voice Response (telephone technology)
CSA
— Canadian Space Agency
EIS
— Executive Information System
RPI
— Retail Price Index
QA
— Center for Quality Assurance in International Education
NSF
— National Sanitation Foundation
WML
— Wireless Markup Language
COR
— Carrier Operated Relay
BBS
— Bulletin Board System
CIO
— Chief Information Officer
SDD
— Software Design Document
DSS
— Decision Support System
ISDN
— Integrated Services Digital Network
RAM
— random-access memory
CPM
— Critical Path Method
DSC
— Differential Scanning Calorimetry
FIPS
— Federal Information Processing Standard
CRM
— Customer Relationship Management
ADD
— Addendum
HVAC
— Heating, Ventilation, and Air Conditioning
JIT
— Just in time
DAM
— Diagnostic Acceptability Measure
QMS
— Quality Management System
AGC
— Automatic Gain Control
RDY
— Ready
WWW3
— World Wide Web Consortium
POP
— Point Of Presence (Internet)
AM
— Amplitude Modulation
CAE
— Computer-Aided Engineering
ADM
— Add-Drop Multiplexer
NYSE
— New York Stock Exchange
TTYL
— Talk To You Later (Internet Slang)
ATCRBS
— Air Traffic Control Radar Beacon System
RFC
— Request For Comment
FAA
— Federal Aviation Administration
SAR
— Search And Rescue
CAD
— Computer Aided Designer
CC
— Carbon Copy
SAN
— Storage Area Network
DES
— Data Encryption Standard
CUG
— Closed User Group
IRS
— U.S. Internal Revenue Service
RDBMS
— Relational Database Management System
PDH
— Plesiochronous Digital Hierarchy
NPI
— New Product Introduction
PGP
— Pretty Good Privacy (encryption)
CIR
— Committed Information Rate (Frame Relay)
VVX
— Voice and Video eXchange
COO
— Chief Operation Officer
IETF
— Internet Engineering Task Force
FX
— Foreign Exchange
AOL
— America on line
BCC
— Blind Carbon Copy
EVP
— Executive Vice President
SDR
— Special Drawing Rights
OCR
— Optical Character Recognition
AES
— Advanced Encryption Standard
CST
— Central Standard Time (UTC-6 Hours)
Q&A
— Question & Answer
QOS
— Quality of Service
MST
— Mountain Standard Time
AE
— Account Executive
CIS
— Commonwealth of Independent States
CDT
— Central Daylight Time
MTTR
— Mean Time To Repair
CGI
— Common Gateway Interface
SAS
— Statistical Analysis System
CBT
— Computer Based Training
DNS
— Domain Name System
ATC
— Air traffic control
D-H
— Diffie-Hellman
ACM
— Association for Computing Machinery
ASP
— Application Service Provider
DRAM
— Dynamic Random Access Memory (dee-ram) (computing)
SIC
— Standard Industrial Classification (Code)
EEC
— European Economic Community (predecessor of the European Union|EU)
DAC
— Discretionary Access Control
PST
— Pacific Standard Time (UTC-8 Hours)
PC
— Personal computer (host)
ECO
— Engineering Change Order
RPM
— Resale Price Maintenance. The UK Net Book Agreement, as was. Means by which retail prices are controlled by primary suppliers. (Alternatively, Revolutions Per Minute, as in engine speed and 78, 33 and 45 records. In years to come how many people will know
DHCP
— Dynamic Host Configuration Protocol
PRI
— Primary Rate Interface (ISDN)
EDT
— Eastern Daylight Time
SQA
— Software Quality Assurance
ROI
— Return on Investment
VM
— Voice Mail
DNS
— Domain Name Service
GSA
— U.S. General Services Administration
ACE
— Advanced Computing Environment
DBMS
— Database Management System
ACK
— ACKnowledgment
BVR
— Beyond Visual Range
NATO
— North Atlantic Treaty Organisation
EFT
— Electronic Funds Transfer
WYSIWYG
— What You See Is What You Get (pronounced Wizzy-wig. See Entry For Derived Acronyms)
SLIP
— Serial Line Interface Protocol
BR
— Branch
ADR
— Address
UTC
— Coordinated Universal Time
CMS
— Content Management System
PNG
— Portable Network Graphics (graphic file standard/extension)
OFC
— Office
DSL
— Digital Subscriber Line
UPS
— Ultraviolet Photoelectron Spectroscopy
UDP
— User Datagram Protocol (FDDI related)
CAM
— computer aided manufacturing
WAN
— Wide Area Network
PM
— Preventive Maintenance
DOJ
— Department of Justice (US)
NFS
— Network File System
NEC
— National Electrical Code
EC
— European Commission
WWW
— World Weather Watch
RWR
— Radar Warning Receiver
EDVAC
— Electronic Discrete Variable Automatic Computer
DCOM
— Distributed Component Object Model
NIH
— Not Invented Here
TNYWR
— The Number You Will Receive
UAV
— Unmanned Aerial Vehicle
LED
— law enforcement desk; light emitting diode
NIST
— National Institute of Standards and Technology
DQPSK
— Differential Quadrature Phase-Shift Keying
AOA
— Angle Of Arrival
DWDM
— Dense Wavelength-Division Multiplexing
ITU
— International Telecommunication Union
FFT
— Fast Fourier Transform
RM
— Regional Manager
TCO
— Total Cost of Ownership
AIS
— Automated Information System
UI
— User Interface
ABET
— Accreditation Board for Engineering and Technology, Inc.
CPT
— Carriage Paid To
BPS
— bits per second
SQL
— Structured Query Language
DB
— Decibel
CFO
— Communication Filing Officer
DLL
— Dynamic Link Library (computer file)
MSN
— Microsoft Network
AAAS
— American Association for the Advancement of Science
CB
— Call Back
MB
— Megabyte
SCC
— Standards Council of Canada
DDE
— Dynamic Data Exchange (in software parlance)
ACC
— Adaptive Cruise Control
ROFL
— Rolling on the floor laughing
BST
— British Summer Time
IP
— Intellectual Property
NOS
— Network Operating System
FCC
— Federal Communications Commission (US)
9
— Nine
DOS
— Disk Operating System
SBU
— Strategic Business Units
CAA
— Civil Aviation Authority
KISS
— Keep It Simple Stupid
HZ
— cycles per second (hertz)
NTIS
— National Technical Information Service Technology Administration
AQL
— Acceptable Quality Level
EOT
— End Of Transmission
PMA
— Physical Medium Attachment
ERP
— Enterprise Resource Planning
MBR
— Master Boot Record
PECVD
— Plasma-Enhanced Chemical Vapor Deposition
SDMA
— Space Division Multiple Access
SCM
— Supply Chain Management
NMR
— Nuclear Magnetic Resonance
DDD
— Direct Distance Dial
STP
— standard temperature and pressure (0° and 1 atm)
AT&T
— American Telephone and Telegraph (U.S. company, also known as "Ma Bell")
BPR
— Business Process Re-engineering
B2B
— Business to Businesse
NA
— Not Applicable
CMM
— Capability Maturity Model
CLI
— Command line Interface (Cabletron)
OSHA
— Occupational Safety and Health Act (1970)
PERT
— Program Evaluation and Review Technique
T&C
— Terms & Conditions
AADC
— Automated Area Distribution Center
TNSTAAFL
— There's No Such Thing As A Free Lunch
RAID
— Redundant Array of Inexpensive Disks
IM
— Instant Message
MLS
— Multiple Listing Service
GPRS
— General Packet Radio Service
SOHO
— Small Office Home Office
DC
— Direct Current
ENIAC
— Electronic Numerical Integrator And Computer
ROS
— Return on Sales
AGP
— Accelerated Graphics Port
TC
— Telephone Call
EEG
— Electro-EncephaloGram
EBCDIC
— Extended Binary Coded Decimal Interchange Code (pronounced Eb-see-dik) (cf. BCD)
PM
— post meridian
100BASE-T2
— 100 Megabits per Second, Baseband, Two-pair Category 3 UTP cables
ZIP
— Zone Improvement Plan
ADT
— Atlantic Daylight Time (UTC-3 Hours)
ERT
— Emergency Response Team
CS
— Computer Science
W3C
— World Wide Web Consortium
AT&T
— American Telephone & Telegraph
DFD
— Displaced Frame Difference
UN
— United Narions
ADPE
— Automatic Data Processing Equipment
OMG
— Object Management Group
APT
— Automatic Picture Transmission
SCSI
— Small Computer System Interface
PDN
— Public Data Network
AAC
— Advanced Audio Coding
ACL
— Access Control List
CIA
— Central Intelligence Agency
LMS
— Learning management system
DDL
— Data Definition Language
PM
— Project Manager
WDM
— Wavelength Division Multiplexing (fiber optics)
DSA
— Digital Signature Algorithm
ISBN
— International Standard Book Number (ISO 2108)
ASEAN
— Association of South East Asian Nations
MIPS
— Millions of Instructions Per Second
CUL
— See You Later
CTD
— Cumulative Trauma Disorder
COQ
— Cost Of Quality
BRI
— Basic Rate Interface
PSTN
— Public Switched Telephone Network
BSOD
— Blue Screen Of Death
SEI
— Software Engineering Institute
VHF
— Very High Frequency
EPR
— Ethylene-Propylene Rubber
AC
— Access Control
OM
— Old Man
JAXA
— Japan Aerospace Exploration Agency
IANA
— Internet Assigned Numbers Authority
CCM
— counter-countermeasure
SSL
— Secure Socket Layer
BSD
— Berkeley Software Distribution
AWG
— American Wire Gauge
NEMA
— National Electric Manufacturer's Association
Z
— Zero
USGS
— United States Geological Survey (DOI)
EEHO
— Either End Hop Off
WEP
— Wired Equivalent Privacy
CCSDS
— Consultative/Consultative Committee for Space Data Systems
FM
— frequency modulation
SAIC
— Science Applications International Corporation
BT
— British Telecommunications
AATSR
— Advanced Along-Track Scanning Radiometer
WMO
— World Meteorological Organization (ICSU)
AAAI
— American Association for Artificial Intelligence's
NOAA
— National Oceanic and Atmospheric Administration (US)
ALC
— Automatic Level Control
SOGA
— Share of Gross Adds
RFD
— Request For Discussion
ADN
— Advanced Digital Network
OBO
— Or Best Offer
M
— Meter
ATN
— Aeronautical Telecommunication Network
CORBA
— Common Object Request Broker Architecture
SAE
— Society of Automotive Engineers
DME
— Distance Measuring Equipment
WTO
— World Trade Organisation
JPEG
— Joint Photographic Experts Group (24-bit image storage format)
MHS
— Message Handling System (electronic)
PSK
— phase-shift keying
PBX
— Private Branch eXchange (company phone system)
LRJ
— Location Reject
APPL
— Application
ISS
— International Space Station
HDML
— Handheld Device Markup Language
MGMT
— Management
DQE
— Detective Quantum Efficiency
ISSN
— International Standard Serial Number (ISO 3297)
KM
— Knowledge Management
AME
— Amplitude Modulation Equivalent
SVP
— Senior Vice President
HTML
— Hyper Text Markup Language
BIP
— Bit-Interleaved Parity
DC
— Disconnected
HW
— Hardware
DTI
— Department of Trade and Industry (UK)
ABR
— Available Bit Rate
SHA
— Secure Hash Algorithm
EEPROM
— Electrically Erasable Programmable Read-Only Memory
MMS
— Multimedia Messaging Service
Y2K
— Year 2000
NTIA
— National Telecommunications and Information Administration
SPC
— Statistical Process Control. Forerunning quality theory from the 1960s to TQC and TQM.
CCSD
— command communications service designator; control communications service designator
SNMP
— Simple Network Management Protocol (ATM)
ACTV
— Active
NIC
— Network Interface Card
RM
— Resource Management
ECP
— Engineering Change Proposals
LEO
— Low Earth Orbit (satellite communications)
EOB
— End Of Business
ICANN
— Internet Corporation for Assigned Names and Numbers
NAFTA
— North American Free Trade Agreement
ISAKMP
— Internet Security Association and Key Management Protocol
EMG
— Electromyogram
USB
— Universal Serial Bus
DTE
— Data Terminal Equipment
ACD
— Automatic Call Distributor
DLR
— Design Layout Record
AFC
— Automatic Frequency Control
911
— Emergency Services Phone Number
ITSEC
— Information Technology Security Evaluation Criteria
SBC
— Southwestern Bell Corporation
ASR
— Airport Surveillance Radar
ROTFL
— Roll On The Floor Laughing
LEC
— Local Exchange Carrier
RFI
— Radio Frequency Interference
EISA
— Extended Industry Standard Architecture
DCN
— Design Change Notification
DSSS
— Direct Sequence Spread Spectrum
OCC
— Occupancy
WIPO
— World Intellectual Property Organization
AF
— Audio Frequency
DMSP
— Defense Meteorological Satellite Program (U.S.)
EDD
— Envelope Delay Distortion
AD
— Active Directory
YL
— Young Lady
TCP
— Transmission Control Protocol
FASB
— Financial Accounting Standards Board
ISMI
— International mobile subscriber identity
MIME
— Multipurpose Internet Mail Extension
CU
— Control Unit
PPB
— parts per billion (109)
RSN
— Real Soon Now [which may be a long time coming]
CMD
— Command
UHF
— Ultra High Frequency (300-3000 MHz; 1m-10cm)
PT
— Project Team
STS
— Space Transportation System
CM
— Configuration Management
WAP
— Wireless Application Protocol
KHZ
— kilohertz (1000 cycles per second)
LD
— Long Distance
ESF
— Extended Super Frame (ATM)
ARA
— Apple Remote Access
SDH
— Synchronous Digital Hierarchy (ATM)
NRC
— National Research Council (Canada)
IPVX
— Internet Protocol version X
AEC
— Architecture, Engineering, Construction
DSTE
— Digital Subscriber Terminal Equipment
MAC
— Media Access Control
ELINT
— Electronic Intelligence Satellite
CCNA
— Cisco Certified Network Associated
RNC
— Radio Network Controller
CLM
— Career Limiting Move. A reminder to think twice before embarking on any action that has an obvious whiff of disaster about it. (Ack R Gesling and S Phillips)
AES
— Auger Electron Spectroscopy
CMI
— Computer Managed Instruction
ECE
— Economische Commissie voor Europa (United Nations) (Dutch: Economic Commission for Europe)
CIS
— CompuServe Information Service
AE
— Application Entity
AMT
— Amount
CRIS
— Carrier Route Information System
SNR
— Signal-to-Noise Ratio
RACON
— Radar Beacon
PVC
— Permanent Virtual Circuit (ATM)
AYT
— Are You There
CRC
— Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
BUS
— Business
NIST
— National Institute of Standards & Technology (US)
TV
— Television
EW
— Electronic Warfare
ASQC
— American Society for Quality Control's
MRC
— Monthly Recurring Charge
NBS
— National Bureau of Standards (US)
RU
— Are You?
NCSA
— National Center for Supercomputing Applications
WB
— Write Back
VAC
— Vacant
BUR
— Bandwidth Usage Redundancy
AVL
— Available
EAP
— Extensible Authentication Protocol
BIOS
— Basic Input Output System
NIMBY
— Not In My Back Yard
ACPI
— Advanced Configuration and Power Interface
FAR
— Federal Aviation Regulation
BPRZ
— Bipolar Return-to-Zero
ECR
— Electronic Cash Register
LCP
— Link Control Protocol
CIM
— Common Information Model
LF
— Low Frequency
CW
— Continuous Wave
CMP
— Connection Management Protocol
EFF
— Electronic Frontier Foundation
BIS
— Bureau of Indian Standards
100BASE-T
— 100 Megabits per second, Baseband, Twisted pair
CES
— Consumer Electronics Show
ATS
— applications technology satellite
RMS
— root mean square (preferred over "RMS")
VR
— Virtual Reality
CDR
— Call-Detail Record
AVHRR
— Advanced Very High Resolution Radiometer
DSCP
— Differentiated Services Control Point
DMA
— direct memory access (computer term)
CRL
— Certificate Revocation List
NSA
— National Security Agency
RDP
— Radar Data Processing
PABX
— private automatic branch exchange (telephone)
B2C
— Business-to-Consumer
ACT
— ACTIVITY, ACTIVITIES
OS
— Operating System
ASQ
— Alpha System Qualification
BNSC
— British National Space Centre
FCS
— Frame check sequence (Ethernet)
PD
— Public Domain
FCA
— Free Carrier
EMS
— Express Mail Service
PPP
— Point-to-Point Protocol
C4
— Command, Control, Communications, and Computers
PET
— positron emission tomography
CHAP
— Challenge Handshake Authentication Protocol (ATM)
CSO
— Customer Service Operations
RPC
— Remote Procedure Call
BYOD
— Bring Your Own Device
BCD
— Binary-Coded Decimal
FDDI
— Fiber Distributed Data Interface
DFS
— Distributed File System
VIRUS
— Vital Information Resources Under Siege
PDU
— Protocol data unit (such as segment, packet, frame, etc.)
WORM
— Write-Once, Read-Many
DRM
— Digital Rights Management
MS
— Millisecond
ADM
— Add/Drop Multiplexer
USD
— United States Dollar
IRS
— Interface Requirements Specification
I/O
— Input/Output
MBPS
— Megabits per second
BG
— Background
BAN
— Base Area Network
SMS
— Short Message Service
TCP/IP
— transmission control protocol/internet protocol
CRBT
— Caller Ring Back Tone
CFV
— Call For Vote(s)
VBR
— Variable Bit Rate (ATM)
APIC
— Advanced Programmable Interrupt Controller
CFE
— Contractor-Furnished Equipment
ECMA
— European Computer Manufacturer's Association
TCB
— Trusted Computing Base
D-RAM
— Dynamic Random Access Memory
CFD
— Call For Discussion
GB
— Gigabyte
AIS
— Alarm Indication Signal
BJT
— Bipolar Junction Transistor
AP
— Application Protocol
BER
— Bit-Error Rate
EMC
— Electromagnetic Compatibility
EDP
— Electronic Data Processing Plc (London Stock Exchange [LSE])
PE
— Polyethylene
FTTB
— Fiber To The Building
TAG
— Technical Advisory Group for Biological Control Agents of Weeds
SIG
— Special Interest Group
BOFH
— Bastard Operator From Hell
RTU
— Remote Terminal Unit
VTC
— Video Teleconference
CMC
— Career Management Center
JST
— Japan Standard Time
ICMP
— Internet Control Message Protocol
HSDPA
— High-Speed Downlink Packet Access
CDMA
— Code Division Multiple Access (voice/data transmission)
AT
— Advanced Technology
DTX
— Discontinuous Transmission
ISAS
— Institute of Space and Astronautical Sciences (Japan)
ADT
— Abstract Data Type
DOM
— Document Object Model
RFS
— Request For Service
MF
— Medium Frequency
LP
— Low Pressure
EAI
— Enterprise Application Integration
IEC
— International Electrotechnical Commission
CBC
— cipher block chaining
AMI
— Advanced Metering Infrastructure
PLD
— Programmable Logic Device
ELF
— Extremely Low Frequency
AMHS
— Automated Message Handling System
ANI
— Automatic Number Identification (Caller ID)
QI
— Quality Improvement
EGA
— Enhanced Graphics Adapter
JPL
— Jet Propulsion Laboratory (California Institute of Technology) (NASA)
RCU
— Remote Control Unit
BLOS
— Beyond Line-Of-Sight
SP
— Service Provider
IRDA
— Infrared Data Association
OSI
— Open Systems Interconnection (iso Standard)
PIN
— Personal Identification Number
ADP
— Automatic Data Processor
MMU
— Memory Management Unit
RSVD
— Reserved
ISRO
— Indian Space Research Organisation
ADC
— Analog-Digital Converter
HSD
— High Speed Data
MIB
— Management Information Base (ATM)
UPS
— Uninterruptible Power Supply
CAD
— Computer-Aided Design
SGML
— Standard Generalized Markup Language
SML/SMS
— Service Management Layer/Service Management Service
MAC
— Message Authentication Code
PWD
— Password
DSP
— Digital Signal Processor
CFD
— computational fluid dynamics
CIC
— Circuit Identification Code
HTTPS
— HyperText Transfer Protocol Secure
SOAP
— Simple Object Access Protocol
DOT
— Department of Telecommunications (India)
OSS
— Operational Support System
MDA
— Monochrome Display Adapter
RIP
— Routing Information Protocol
QAM
— quadrature amplitude modulation
MPLS
— Multi Protocol Label Switching
ASK
— amplitude shift keying
YAHOO
— You Are Hazy Over Oranges
PAR
— Precision Approach Radar
COMINT
— Communications Intelligence
ACO
— Additional Call Offering
ADF
— Automatic Direction Finder
APS
— Automatic Protection Switching (SONET/SDH)
PDS
— Protected Distribution System
PCMCIA
— Personal Computer Memory Card International Association
OLE
— Object Linking and Embedding (Microsoft communication protocol)
BS
— Base Station
ATM
— Adobe Type Manager
TEL
— Telephone
TRLR
— Trailer
AXE 10
— Series of electronic telephone exchanges from L.M. Ericsson
TPDU
— Transport Protocol Data Unit
RSVP
— Resource Reservation Protocol (Internet)
NOC
— Network Operations Center
CG
— Coast Guard
3G
— Third Generation mobile phone network
SAR
— Specific Absorption Rate
LDAP
— Lightweight Directory Access Protocol (pronounced Ell-dap)
SCADA
— Supervisory Control And Data Aquisition
WPAN
— Wireless Personal Area Network
ATF
— Advanced Tactical Fighter
CAUCE
— Coalition Against Unsolicited Commercial Email
B3ZS
— bipolar 3-zero substitution
VB
— Visual Basic
LF
— Line Feed
DSA
— Directory System Agent
STA
— State
RH
— Relative Humidity
RACF
— Resource Access Control Facility
CHF
— Swiss Franc
IMEI
— International Mobile Equipment Identity
CG
— Center of Gravity (DXS)
SPC
— Stored Program Control
AS
— Autonomous System
URI
— Uniform Resource Identifier
VXML
— Voice eXtensible Markup Language
DCMI
— Dublin Core Metadata Initiative (Online Computer Library Center)
ARG
— Argument
PRF
— Pulse Repetition Frequency
BBU
— Baseband Unit
MCD
— Magnetic Circular Dichroism
LPE
— Liquid Phase Epitaxy
SIT
— Static Induction Transistor
LR-WPAN
— Low-Rate Wireless Personal Area Network
VOL
— Volume
GRE
— Generic Routing Encapsulation
VAS
— Value Added Services
JSC
— Johnson Space Center (Houston, TX)
DCE
— Distributed Computing Environment
LQC
— Line Quality Control
NESDIS
— National Environmental Satellite, Data, and Information Service
MDA
— Model Driven Architecture
CGI
— Computer-Generated Imagery
RAD
— Rapid Application Development
DASD
— Direct Access Storage Device
MIS
— Management Information Service
OSPF
— Open Shortest Path First (ATM)
NAS
— Network Access Server
CATV
— Cable Television
ESTEC
— European Space Research and Technology Centre
NMT
— Nordic Mobile Telephone
TLS
— Transport Layer Security
BECN
— Backward Explicit Congestion Notification
APC
— American Power Conversion
CA
— Certificate Authority
CERT
— Computer Emergency Response Team
VOIP
— Voice Over IP (Internet Protocol)
CBEMA
— Computer & Business Equipment Manufacturers Association
HF
— High Frequency
OTN
— Optical Transport Network
FCA
— Free Carrier Absorption
LCN
— Logical Channel Number
WLAN
— Wireless Local Area Network
TOS
— Type Of Service
SIL
— Speech Interference Level
RCC
— Rescue Coordination Center
TKIP
— Temporal Key Integrity Protocol
DSN
— Deep Space Network - network of large antennas and communication facilities.
BGP
— Border Gateway Protocol (routing protocol)
MOS
— Model Output Statistics
TTYL
— Type To You Later
HDLC
— High-Level Data Link Control
IMSI
— International Mobile Subscriber Identity
KB
— Kilobyte: One thousand and twenty-four bytes kbps kilo bit per second
DUP
— Duplicate
VLF
— Very Low Frequency
RAN
— Radio Access Network
SW
— South West
ITT
— Invitation To Tender
CIFS
— Common Internet File System
IV
— Initialization Vector
STM
— Short Term Memory
MS
— Mobile Station
OD
— Outside Diameter
FTTH
— Fiber To The Home
ASTD
— American Society of Training and Development (Alexandria, Virginia)
NIC
— Network Information Center
PPARC
— Particle Physics and Astronomy Research Council
AU
— Audio Unit
SDK
— Software Development Kit (Microsoft)
UAS
— Unavailable Seconds
EPR
— Electron Paramagnetic Resonance
DLC
— Digital Loop Carrier
CCD
— Charge Coupled Device - a device for the movement of electrical charge.
JIS
— Japanese Industrial Standard
PCM
— Pulse-Code Modulation
PDN
— Packet Data Network
E
— Echo Time Zone
MS
— Management System
BPDU
— Bridge Protocol Data Unit
CFA
— Carrier Facility Assignment
AR
— Access Rate
YABA
— Yet Another Bloody Acronym
MTSO
— Mobile Telephone Switching Office
EHF
— Extremely High Frequency
UML
— Unified Modeling Language (Object Management Group, OMG)
ACFQ
— Absence Compensation Fair Queuing
TB
— Terabyte
ASI
— Asynchronous Serial Interface
PCI
— Peripheral Component Interconnect
DMTS
— Distinguished Member Of Technical Staff
MIC
— Message Integrity Check
100BASE-T4
— 100 Megabits per Second, Baseband, Four-pair Category 3 UTP cables
APM
— Advanced Power Management
VCC
— Virtual Channel Connection (ATM)
COM
— Component Object Model
PAN
— Personal Area Network
MS
— Message Store
CCIS
— Common Channel Interoffice Signaling
MVS
— Multiple Virtual Storage
RARP
— Reverse Address Resolution Protocol
DTR
— Data Terminal Ready
CC
— Country Code
SDM
— Service Delivery Management
NSAI
— National Standards Authority of Ireland
VOC
— Volatile Organic Compounds (air pollution)
WG
— Working Group
ABBR
— Abbreviation
TIA
— Telecommunications Industry Association
GHZ
— Gigahertz
NMS
— Network Management System
SLF
— Super Low Frequency
JVM
— Java Virtual Machine
LIU
— Line Interface Unit
DIT
— Directory Information Tree
LZ
— Landing Zone
GOS
— Grade Of Service
OMA
— Open Mobile Alliance
TM
— Technical Manual
FR
— Frame Relay
POTS
— Plain Old Telephone Service (FCW)
IS
— Intermediate System
SXS
— Step-By-Step
NOTAM
— Notice to Airmen
MTU
— Maximum Transmission Unit
ISA
— Industry Standard Architecture
TG
— Task Group
AMI
— Alternate Mark Inversion
FC
— Fibre Channel
IEEE-SA
— Institute of Electrical and Electronics Engineers - Standards Association
RDF
— Radio Direction Finder
DNIS
— Dialed Number Identification Service
BSA
— Business Software Alliance
IS
— International Standard
ISO
— Independent System Operator (US) (see also TSO) Responsible for grid management, but does not own assets. (electricity)
DS
— Digital Signal
EEA
— European Economic Area
CIM
— Corporate Information Management
CATV
— Community Antenna Television
LLC
— Logical Link Control
NLM
— National Library of Medicine (National Institutes of Health)
IW
— Information Warfare
1000BASE-T
— 1000 Megabits per Second, Baseband, Twisted Pair
YP
— Yellow Pages
DID
— direct inward dial
AFS
— Andrew File System
NFPA
— National Fire Protection Association
CAM
— Computer-Aided Mapping
CPS
— Cycles Per Second (now Hertz)
ISO
— Infrared Space Observatory
RT
— Radiotelephone
ECPA
— Electronic Communications Privacy Act 1986
DCS
— Digital Cross-connect System
NIS
— Network Information Service
CAB
— Conformity Assessment Body
NCS
— National Communications System
NOAO
— National Optical Astronomy Observatories (Tucson, AZ)
DDS
— Digital Data Service
SKU
— Stockkeeping Unit
CICS
— Customer Information Control System (IBM Mainframe Software; Kicks Or C-I-C-S)
HSS
— Home Subscriber Server
ERP
— Enterprise Resource Management
ASR
— Automatic Speech Recognition
PAP
— Password Authentication Protocol (ATM)
FAT
— File Allocation Table
ECN
— Explicit Congestion Notification
ACR
— Attenuation Crosstalk Ratio
IIS
— Internet Information Services
EPABX
— Electronic Private Automatic Branch Exchange
CCTA
— Central Computer and Telecommunications Agency
ARPU
— Average Revenue Per User
FCW
— Federal Computer Week
SSM
— Source-Specific Multicast
IPX
— Internetwork Packet Exchange
TCSEC
— Trusted Computer System Evaluation Criteria
FAX
— Facsimile
SMI
— Structure of Management Information
BER
— Basic Encoding Rules (ASN.1)
DIS
— Distributed Interactive Simulation
EC
— European Community
VDS
— Variable Depth Sonar
DPC
— Destination Point Code
MSRN
— Mobile Station Roaming Number
MCSD
— Microsoft Certified Solution Developer
OAM&P
— Operations, Administration, Maintenance & Provisioning
PKI
— Public Key Infrastructure (cryptography)
OAS
— Organization of American States
UA
— User Agent
RSRQ
— Reference Signal Received Quality
LLU
— Local Loop Unbundling
RCV
— Receive
ME
— Mobile Equipment
MIT
— Massachusetts Institute of Technology (U.S.)
AEW
— Airborne Early Warning
B-ISDN
— Broadband Integrated Services Digital Network
TAC
— Technical Assistance Center
EMR
— Electromagnetic Radiation
DA
— Destination Address
PLMN
— Public Land Mobile Network
FCP
— Fibre Channel Protocol
ARINC
— Aeronautical Radio Incorporated
ADCCP
— Advanced Data Communications Control Procedures
IMC
— Intermediate Metal Conduit
DIBL
— Drain-induced Barrier Lowering
MMSI
— Maritime Mobile Service Identity
APN
— An Access Point Name
EGP
— Exterior Gateway Protocol
MMB
— Middle Mouse Button
AMLCD
— Active Matrix Liquid Crystal Display
CGM
— Computer Graphics Metafile
ES
— Errored Second
VM
— Virtual Machine
CAV
— Constant Angular Velocity
NE
— North-East
PTP
— Point to Point Transmission Service (electricity)
NCP
— Network Control Protocol
ARIN
— American Registry for Internet Numbers
MHS
— Microwave Humidity Sounder
BT
— BlueTooth
SVC
— Scalable Video Coding
BRA
— Basic Rate Access
SAR
— synthetic aperture radar (satellite)
SEM
— Space Environment Monitor
SPA
— Special Prorate Agreement
WMAN
— Wireless Metropolitan Area Network
AIFF
— Audio Interchange File Format
WS
— Workstation
COO
— Cost of Ownership
AT
— Access Tandem
WPM
— speech--words per minute
VOD
— Video On Demand
DAP
— Directory Access Protocol
EAC
— Engineering Accreditation Commission
ESS
— Electronic Switching System
ADF
— automatic document feeder
DDCMP
— Digital Data Communications Message Protocol
ARQ
— Automatic Repeat-reQuest
IMPACT
— Integrated Manufacturing Precision Assembly Cellular Technology
RCS
— Radar Cross Section
TDOA
— Time Difference Of Arrival
DVMRP
— Distance Vector Multicast Routing Protocol
OMS
— Optical Multiplex Section
RJ-14
— Registered Jack type 14 (2-wire connector)
MSU
— Microwave Sounding Unit
CDS
— Cell Directory Service
CEV
— Controlled Environment Vault
RTS
— Request To Send
ASIC
— application-specific integration circuit
HSCSD
— High-Speed Circuit-Switched Data
MPEG
— Motion Picture Experts Group
RSS
— Really Simple Syndication
CBDS
— Connectionless Broadband Data Service
DDN
— U.S. Defense Data Network
STP
— Spanning Tree Protocol
NNTP
— Network News Transfer Protocol
AOI
— Area Of Interest
DT
— DWDM (Dense Wavelength Division Multiplexing) Terminal
SCTP
— Stream Control Transmission Protocol
CSA
— Canadian Standards Association (like UL)
ATSR
— Along-Track Scanning Radiometer
AFSK
— Audio Frequency Shift Keying
WAR
— Weekly Activity Report
SPGA
— Staggered Pin Grid Array
E
— Energy
MCU
— Multipoint Control Unit
MME
— Mobility Management Entity
WCDMA
— Wideband Code Division Multiple Access
FEC
— Forward Error Correction
WK
— Week
ELT
— Emergency Locator Transmitter
3GPP
— Third Generation Partnership Project
TE
— Traffic Engineering
EX
— Exercise
MCA
— Micro Channel Architecture
ODBC
— Open Database Connectivity
10BASE-T
— 10 Megabits per second, Baseband, Twisted pair
ABN
— Abnormal
SDLC
— Synchronous Data Link Control
ADEOS
— ADvanced Earth Observing Satellite (Japan)
AFM
— Atomic Force Microscopy
CTS
— Clear To Send
BS
— Beam Splitter
FXO
— Foreign Exchange Office
IRQ
— Interrupt Request
SLP
— Service Location Protocol
ISI
— Inter-Symbol Interference
NTFS
— New Technology File System
DUC
— Digital Up-Converter
KDC
— Kerberos Key Distribution Center
CABS
— Carrier Access Billing System
HDSL
— High-bit-rate Digital Subscriber Line
OTS
— Optical Transmission Section
ADL
— Advanced Distributed Learning
STI
— Speech Transmission Index
ACAP
— Application Configuration Access Protocol
AMPS
— Advanced Mobile Phone System
DSS
— Digital Signature Standard
SHF
— Super High Frequency
VLL
— Virtual Leased Line
CAN
— Campus Area Network
LPC
— Linear Predictive Coding
BOC
— Bell Operating Company
CF
— Compact Flash
TDMA
— Time Division Multiple Access
OSTP
— Office of Science and Technology Policy
CRO
— Central Records Office
WLTF
— Wireless LAN (Local Area Network) Task Force
MCC
— Mission Control Center (JSC)
SDP
— Session Description Protocol
DSLAM
— Digital Subscriber Line Access Multiplexer (Module)
MAJ
— Major
LSR
— Local Service Request
LFACS
— Loop Facility Assignment and Control System
COAX
— Coaxial
DX
— Duplex
CS
— Cable Select
OTA
— Office of Technology Assessment (U.S.; abolished by Congress, Fall 1995)
COMJAM
— Communications Jamming
ECT
— Explicit Call Transfer
AMR
— Automated meter reading also known as Automatic Meter Reading
ZIP
— Zone Information Protocol
SYM
— Symmetric
TO
— Technical Order
DID
— data item description
WTLS
— Wireless Transport Layer Security
BERT
— Bit Error Rate Tester (telecommunication)
TWT
— Traveling Wave Tube
FMC
— Fixed Mobile Convergence "Mobile UC or Unified Communications over Wireless"
UL
— Uplink
LSF
— Line Spread Function
CO
— Certificate of Origin
WAFB
— Wireless Absolute Fairness Bound
TOP
— Technical Office Protocol
CAC
— Carrier Access Code
CU
— Channel Unit
NI
— Network Interface
SA
— Scientific American
PDC
— Personal Digital Cellular
IEEE-CS
— Institute of Electrical and Electronics Engineers Computer Society
OLAP
— Online Analytical Processing
DMX
— De-MultipleXer
RJ-25
— Registered Jack type 25 (6-wire connector)
CAVE
— Cellular Authentication and Voice Encryption Algorithm
NE
— Network Element
EMS
— Enhanced Messaging Service
ORB
— Object Request Broker
NREN
— National Research and Education Network
RP
— Reference Point
TEC
— Total Electron Content
2W
— Two Wire
TE
— Terminal Equipment
SOS
— Save Our Souls (Help!)
ECAC
— European Civil Aviation Conference
SRS
— Software Requirements Specifications
ATS
— Automatic Transfer Switch
POE
— power over ethernetinjector
SBC
— Session Border Controller
AML
— Amplitude Modulated Link
ECM
— Electronic Counter Measures
ADB
— Apple Desktop Bus
PIM
— Personal Information Manager
AAF
— Advanced Authoring Format
CPN
— Cisco Powered Network
VSAT
— Very Small Aperture Terminal (satellite service)
CO
— Central Office
F
— Fellow
AMSS
— Automatic Message Switching System
SVD
— Singular Value Decomposition
CDE
— Common Desktop Environment
CPS
— characters per second
CDA
— Command and Data Acquisition
DSN
— Defense Switched Network
VRML
— Virtual Reality Modeling Language
TCPA
— Telephone Consumer Protection Act
NLMS
— Normalized Least Mean Square
AAV
— Accountholder Authentication Value
DTD
— Document Type Definition (XML)
FSK
— Frequency-Shift Keying
BAOC
— Barring of All Outgoing Calls supplementary service
VGA
— Video Graphics Array
TCR
— Temperature Coefficient of Resistance
P
— Predicted
TOA
— Time Of Arrival
SM
— Senior Member
CBP
— Coded Block Pattern
EMS
— Element Management System (ATM)
NTP
— Network Time Protocol
EMCON
— Electromagnetic Emission Control
TXM
— Transmission X-ray Microscope
DIS
— Draft International Standard
IAB
— Internet Architecture Board
BACP
— Bandwidth Allocation Control Protocol
QPSK
— aeronautical quadrature phase shift keying
TS
— Technical Specification
SONET
— Synchronous Optical Network
CLNP
— ConnectionLess-mode Network Protocol
PAL
— Programmable Array Logic
PROM
— Programmable Read-Only Memory
RRN
— Routing Recording Number
GDM
— GSM (Global System for Mobile communications) Data Module
TTY
— Teletype Telex Machine
WINS
— Windows Internet Name Service
CAC
— Connection Admission Control (Asynchronous Transfer Mode)
JTF
— Joint Task Force
LRC
— Learning Resource Center
BIU
— Bus Interface Unit
CC
— Call Control
DRFM
— Digital Radio-Frequency Memory
IRLAN
— Infrared LAN
IS
— Information System
AAS
— Adaptive Antenna System
JCL
— Job Control Language
EULA
— End User License Agreement (usually in reference to software)
DISA
— U.S. Defense Information Systems Agency
DAT
— Digital Audio Tape
ASR
— Access Service Request
FEP
— Front End Processor
SITA
— Société Internationale de Télécommunications Aéronautiques
IDT
— Integrated Digital Terminal
ADT
— American District Telegraph Company
UAN
— Universal Access Number
HEHO
— Head End Hop Off
CODASYL
— COnference on DAta SYstems Languages
OC
— Optical Carrier
SPADATS
— Space Detection And Tracking System
VMS
— Virtual Memory System
WWAN
— wireless wide-area network
CAL
— Calorie
SD
— Software Development
VC
— Virtual Channel
NSS
— Network Switching Subsystem
STN
— Station
AP
— access point
DBS
— Direct Broadcast Satellite
VLSI
— Very-Large-Scale Integration
IN
— Intelligent Network
MC
— Message Center
FE
— Finite Element
GDS
— Global Distribution System
AWACS
— Airborne Warning And Control System
PGA
— Programmable Gate Array
TPC
— The Phone Company
NRPB
— National Radiological Protection Board
TTL
— ToS and Time-to-Live
IESG
— Internet Engineering Steering Group
PUB
— Publication (file name extension)
AFP
— AppleTalk Filing Protocol
DII
— Defense Information Infrastructure
M
— Management
E&M
— ear and mouth (special signaling leads)
BELLCORE
— Bell Communications Research, Inc.
FAA
— Federal Aviation Agency
NCSC
— National Computer Security Center (NSA)
FITS
— Flexible Image Transport System
IV&V
— independent verification and validation
LEP
— Large Electron Positron
ISOC
— Internet Society
LEN
— Line Equipment Number
TRMM
— Tropical Rainfall Measuring Mission (US-Japan)
PVD
— Physical Vapor Deposition
CBR
— Constant Bit Rate
ACF
— Access Control Field
MSR
— Microwave Scanning Radiometer
FUP
— Fair Use Policy
ROSAT
— Roentgen Satellite
DMS
— Data Management System
PEM
— Privacy-Enhanced Mail
MD
— Mediation Device
DSCP
— Differentiated Services Code Point
JRE
— Java Runtime Environment
BOD
— Bandwidth on Demand
HEX
— Hexadecimal (base 16)
EIGRP
— Enhanced Interior Gateway Routing Protocol
EIA
— Extended Interaction Amplifier
RGN
— Region
EFS
— Encrypting File System
IRS
— Inertial Reference System
WWAN
— Wireless Wide Area Network
JDK
— Java Development Kit
KAK
— Key-Auto-Key
SUS
— Suspension
TDM
— Time Division Multiplexer
STK
— Satellite Tool Kit
TDD
— Telecommunications Device for the Deaf
LU
— Logical Unit
E2E
— End-to-End
ESF
— Edge Spread Function
DCN
— Disconnect
CT
— Computer Telephony
CSAT
— Customer Satisfaction
LQR
— Linear Quadratic Regulator
SATAN
— Security Administrator Tool for Analyzing Networks
BCH
— Binary Coded Hexadecimal
WAIS
— Wide Area Information Server
LNP
— Local Number Portability
MSE
— Mobile Subscriber Equipment
VF
— Voice Frequency
SAN
— System Area Network
B6ZS
— Bipolar 6 Zero Substitution
DCP
— Design Change Package
DW
— Deep Water
TBD
— To Be Decided
TLC
— The Learning Channel
ASE
— Application Service Element
DNIC
— Data Network Identification Code
CAMA
— Centralized Automatic Message Accounting
EST
— Establish
LT
— Line Termination
SDHLR
— Super-Distributed Home Location Register
MCP
— Microsoft Certified Professional
4GL
— Fourth-Generation Language
AFOSR
— Air Force Office Of Scientific Research(USA)
CVD
— Chemical Vapor Deposition
PSD
— Phase-Sensitive Detector
Y
— Yes
UTP
— unshielded twisted pair
PTA
— Pakistan Telecommunication Authority
DMARC
— Demarcation point
AUI
— Attachment Unit Interface
LISP
— List Processing Language
CAPS
— Call Attempts Per Second
ECP
— Encryption Control Protocol
ITP
— Interactive Telecommunications Program
AUD
— Audit
ARC
— Army Reuse Center
HLR
— Home Location Register
TI
— Time Interval
FR PVC
— Frame Relay Permanent Virtual Connection
IEEE
— Institute of Electrical and Electronics Engineers
IP
— Intelligent Peripheral
NDVI
— Normalized Difference Vegetation Index
DCS
— Data Collection System (NOAA Polar Orbiting Satellites)
ASN.1
— Abstract Syntax Notation One
SPI
— Service Provider Interface
NAT
— Network Address Translation
B2B
— Business-to-Business
BNC
— Bayonet Neill-Concelman
DER
— Distinguished Encoding Rules
EMI
— Electro-Magnetic Interference
BIS
— Business Information System
SLIP
— Serial Line Internet Protocol
ETS
— European Telecommunication Standard
VBA
— Visual BASIC for Applications
CD
— Critical Dimension
IPOATM
— Internet Protocol over ATM
Y
— Yttrium
FWA
— Fixed Wireless Access
SMPTE
— Society of Motion Picture and Television Engineers, Inc.
SMB
— Server Message Block
DCE
— Data Communication Equipment
EBCDIC
— Extended Binary-Coded Decimal Interchange Code
SINAD
— SIgnal-to-(Noise And Distortion) ratio
MLP
— Mobile Location Protocol
AIN
— Advanced Intelligent Network
PUK
— PIN (Personal Identification Number) Unlocking Key
CTU
— Central Terminal Unit
GBPS
— Gigabits per second
VT
— Virtual Terminal
DUA
— Directory User Agent
RMI
— Remote Method Invocation
MPI
— Message Passing Interface
COPS
— Common Open Policy Service
IRTF
— Internet Research Task Force
BHCA
— Busy Hour Call Attempt
QI
— Quality Indicator
ASARS
— Advanced Synthetic Aperture Radar System
TN
— Telephone Number
YYP
— Yahoo Yellow Pages
SA
— Source Address
AMPS
— Advanced Mobile Phone Service (cellular phone standard)
WHT
— Walsh-Hadamard Transform
DVB
— Digital Video Broadcasting
ACLR
— Adjacent Channel Leakage Ratio
STP
— Signal Transfer Point
ISM
— Industrial, Scientific and Medical
ACT
— Activity
SDSL
— Symmetric Digital Subscriber Line
BTAM
— Basic Telecommunications Access Method
RAU
— Radio Access Unit (Army)
CODEC
— Coder/decoder
TMSI
— Temporary Mobile Subscriber Identity
DN
— Distinguished Name
IPCP
— Internet Protocol Control Protocol
CRLF
— Carriage-Return Line-Feed
CFNRY
— Call Forwarding on No Reply
ATC
— Advanced Technology Center
EIP
— Equipment installation procedure
EAS
— Extended Area Service
FEXT
— Far-End Cross Talk
GSM
— Groupe Speciale Mobile
CSPRM
— Common Signaling Protocols Resource Module
DAL
— Dedicated Access Line
FTAM
— File Transfer Access and Management
TDD
— Time Division Duplex
TFTP
— Trivial File Transfer Protocol (ATM)
1FB
— Single line, Flat Business rate;
MX
— Mixer
VPI
— Virtual Path Identifier
TOS
— Temporarily Out of Service
MUSIC
— MUltiple SIgnal Classification
4W
— Four-Wire
LPD
— Low Probability of Detection
MTP
— Message Transfer Part
IAD
— Integrated Access Device
FA
— Functional Area
VOP
— Voice Over Packet
BAN
— Billing Account Number
QDR
— Quad Data Rate
TELECOMMUTE
— Telecommuting
ETSI
— European Telecommunications Standard Institute
PM
— Phase Modulation
SCP
— Service Control Point
FLM
— First Line Maintenance
SLAM
— Scanning Laser Acoustic Microscope
STN
— Station Casinos, Inc.
DID
— Digital Information Display
VHSIC
— Very High-Speed Integrated Circuit
BIP
— Band Interleaved by Pixel
NIU
— Network Interface Unit
OSS
— Operations Support System
T
— Temperature
SMDS
— Switched Multimegabit Data Service (ATM)
FE
— Far End
RSS
— root-sum-square
4 GIG
— 4 Giga Intellectual Gadget
POP
— Post Office Protocol
SVC
— Switched Virtual Connection
PIC
— Peripheral Interface Controller
REA
— Rural Electrification Administration (US)
SML
— Service Management Layer
RACH
— Random Access Channel
CSPDN
— Circuit Switched Public Data Network
COMDEX
— Computer Dealers Exposition
VQV
— Voice Quality Value
DCS
— Digital Cross-Connect
SNA
— System Network Architecture
SDP
— Software Development Plan
DEMUX
— Demultiplexer
SVC
— Switched Virtual Circuit (ATM)
SPD
— Serial Presence Detect
LSI
— Large Scale Integration -> VLSI
TOVS
— TIROS Operational Vertical Sounder
TIFF
— Tag Image File Format
ASA
— Acoustical Society of America
RPV
— Remotely Piloted Vehicle
DVP
— Digital Voice Privacy
NES
— Network Encryption System
LRC
— Longitudinal Redundancy Check
TE
— Test Equipment
BLER
— Block Error Rate
OSF
— Open Software Foundation
A
— Anode
IMAP
— Internet Mail Access Protocol
CI
— Common Interface
TTY
— teletype terminal
F
— Frequency
RDI
— Remote Defect Indicator (UNI Fault Management)
BSI
— British Standards Institution
FH
— Frequency Hopping
CMT
— Cadmium Mercury Telluride
CLEC
— Competitive Local Exchange Carrier
SWAP
— Shared Wireless Access Protocol
RADIUS
— Remote Authentication Dial-In User Service
MP
— Multilink Protocol
FEM
— Finite Element Method
OT
— Office of Telecommunications
HW
— Hardware Wars
MHO
— My Humble Opinion
OOP
— Object-Oriented Programming
EFIS
— Electronic Flight Information System
CP
— Change Proposal
LDP
— Label Distribution Protocol
TL1
— Transaction Language 1
NPA
— Numbering Plan Area
TRM
— Technical Reference Model
FEP
— Front-End Processor
TCIC
— Trunk Circuit Identification Code
LATA
— Local Access and Transport Area
RX
— Receive
SFX
— Special Effects
AN
— Access Node
TOP
— technical/office protocol
RLU
— Remote Line Unit
RT
— Remote Terminal
CCIR
— International Radio Consultative Committee (French Acronym)
PP
— Polypropylene
CIRC
— Cross-Interleaved Reed-Solomon Code
CNM
— Customer Network Management
PDS
— Planetary Data System
SPA
— Software Publishers Association
CGI
— Cell Global Identity
ESP
— Encapsulating Security Payload
COAM
— Customer Owned And Maintained
NII
— National Information Infrastructure (USA)
RA
— Risk Analysis
VLAN
— Virtual Local Area Network
DPSK
— Differential Phase Shift Keying
BMEWS
— Ballistic Missile Early Warning System (bee-mews)
OPC
— Originating Point Code
1-ESS
— x-ESS series of Electronic Switching Systems
DCS
— Digital Cellular System
AF
— Assured Forwarding
NNM
— Network Node Manager
XPS
— X-Ray Photoelectron Spectroscopy
PDT
— Portable Data Terminal
SCN
— Switched Circuit Network
CMOS
— Complementary Metal Oxide Semiconductors
PRI
— Priority
W-CDMA
— Wideband Code Division Multiple Access
MEID
— Mobile Equipment Identifier
LAG
— Link Aggregation Group
EMEA
— Europe, Middle East and Africa
TDRSS
— Tracking and Data Relay Satellite System
RISC
— Reduced Instruction Set Computing
BTC
— Botswana Telecommunications Corporation
CER
— Cell Error Ratio
AC
— Area Code
FOSE
— Federal Office Systems Exposition
CDR
— Clock and Data Recovery
NIC
— Network Interface Controller
CLETS
— California Law Enforcement Telecommunication System
BY
— Busy
MSI
— Maritime Safety Information
TELNET
— Telecommunications Network Protocol
DEC
— Decimal
DS-0
— Digital Signal, Level 0
DISN
— Defense Information Systems Network
FSK
— Frequency Shift Keying
YA
— Yet Another
DL
— Digital Library
ACC
— Area Control Center
VESA
— Video Electronics Standards Association
WPS
— Wireless Priority Service
CHTML
— Compact Hypertext Markup Language
UART
— Universal Asynchronous Receiver/Transmitter
VTS
— Vessel Traffic Service
SWBD
— Switchboard
BCH
— Bose-Chaudhuri-Hocquenghem Coding
ESCA
— photoelectron spectroscopy for chemical analysis
DPDU
— Data Protocol Data Unit
PIC
— Programmable Interrupt Controller
DUV
— Deep Ultraviolet
ADN
— Abbreviated Dialing Number
TOMS
— Total Ozone Mapping Spectrometer (satellite Instrument)
ASYNC
— Asynchronous
MOL
— Manned Orbiting Laboratory
SIL
— Solid Immersion Lens
CIAC
— Computer Incident Advisory Capability
EBS
— Electron Bombarded Silicon
DTMF
— Dual-Tone MultiFrequency
PG
— Page
RJE
— Remote Job Entry
IPLC
— International Private Leased Circuit
NDIS
— Network Driver Interface Specification (Microsoft Windows NT)
RECON
— Reconnaissance
PE
— Probable Error
FRAD
— Frame Relay Access Device
ACSE
— Association Control Service Element
4G
— Fourth Generation Wireless Systems
NCC
— Network Control Center (GSFC)
ARPANET
— ARPA Network
DTU
— Data Transfer Unit
KSU
— Key Service Unit
IDF
— Independent Distribution Frame
TSR
— Telecommunications Service Request
RMS
— Resource Management System
MRT
— Medical Response Team
NAS
— Network-Attached Storage
FTNS
— Fixed Telecommunications Network Services
AAS
— advanced automation system (FAA)
C
— Cost
BDE
— Borland Database Engine
CES
— Circuit Emulation Service
SEC
— Software Engineering Center
OBC
— Onboard Computer
SISIR
— Singapore Institute of Standards and Industrial Research
DL
— Data Link
FECN
— Forward Explicit Congestion Notification (ATM)
SL
— Single Line
DPL
— Digital Power Line
LT
— Less Than
IPS
— InPlane Switching
MBWA
— Mobile Broadband Wireless Access
CDC
— Connected Device Configuration
CB
— Common Battery
SPM
— Scanning Probe Microscope
GMRS
— General Mobile Radio Service
METRO
— Metropolitan
OTDOA
— Observed Time Difference of Arrival
SIMT
— Système interbancaire marocain de télécompensation
PBT
— Polybutylene Terephthalate
TTY
— Text Teletype
2G
— Second Generation Wireless Systems
IPR
— Intellectual Property Right
CNG
— Fax Calling Tone
LSW
— Least Significant Word
RADINT
— Radar Intelligence
TSO
— Telecommunications Service Order
IAT
— Integrated Access Terminal
B3G
— Beyond Third Generation
TCM
— Trellis-Coded Modulation
RSS
— Radio Service Software (Motorola)
ER
— Extended Range
ODS
— Operational Data Store (knowledge management)
NTDS
— Naval Tactical Data System
CMIP
— Common Management Information Protocol (ATM)
E
— Electra
NCAR
— National Center for Atmospheric Research (US)
DLCI
— data link connection identifier
MOD
— Modify
BCDIC
— Binary Coded Decimal Interchange Code
PU
— Physical Unit (IBM)
NWK
— Network
SZ
— Seizure
FDTD
— Finite Difference Time Domain
MEAS
— Measure
NSAP
— Network Service Access Point
CAM
— Content Addressable Memory
SG
— Signaling Gateway (IETF)
PSN
— Packet Switched Network
JAN
— Joint Army-Navy
TC
— Transmission Convergence (ATM)
ROW
— Rest Of World
ES
— Emergency Service
FDD
— Frequency Division Duplex
EIR
— Excess Information Rate
DPL
— Digital Private-Line
Q
— Quadrature
TCP/IP
— Transmission Control/Internet Protocol
DL
— Definition List
OWS
— Operator Work Station
HTML
— Hyper-Text Markup Language
DC
— Display Controller
BBM
— Blackberry Messenger
ACF
— Advanced Communications Function (IBM)
WSFL
— Web Services Flow Language
RT
— Response Time
LAAS
— Local Area Augmentation System
PWM
— Pulse width modulation
CAM
— Computer-Aided Manufacturing
ANC
— Access Network Controller
IWF
— Interworking Function
ERL
— Echo Return Loss
IEC
— Interexchange Carrier
MMC
— Microsoft Management Console (Microsoft)
PAM
— Payload Assist Module
WSDL
— Web Services Description Language
EU
— End User
AFI
— Authority and Format Identifier
CP
— Cell Phone
EIR
— Equipment Identity Register
TACACS
— Terminal Access Controller Access Control System
SIM
— Subscriber Identity Module
TLK
— Talk
PS
— Product Specification
SAI
— Serving Area Interface
MFLOPS
— Millions of Floating Point Operations per Second
DDLD
— Direct Dial Long Distance
ATA
— Analog Telephone Adapter
MTD
— Moving Target Detection
ATS
— Air Traffic Services
MSW
— Most Significant Word
RIPE NCC
— Reseaux IP Europeens Network Coordination Centre
DAS
— Data Acquisition System
CVR
— Crystal Video Receiver
AIF
— Audio Interchange Format
CQA
— Certified Quality Auditor
LIS
— Lightning Imaging Sensor
VPA
— Valid Peripheral Address
L2TPV3
— Layer 2 Tunneling Protocol Version 3
ASDE
— Airport Surface Detection Equipment
HFC
— Hybrid Fiber/Coaxial network
CLDC
— Connected Limited Device Configuration
2W
— 2-Wire
PUC
— Public Utility Commission (electricity)
DLP
— Data Link Processor
ASAR
— Advanced Synthetic Aperture Radar
MDM
— Mobile Device Management
TD-CDMA
— Time Division - Code Division Multiple Access
EA
— Extended Address Field Bit
NTU
— Network Termination Unit
VOA
— Voice Of America
DMI
— Desktop Management Interface (computing)
TDR
— Time-Domain Reflectometry
IPS
— Instructions Per Second
SSMA
— Spread-Spectrum Multiple Access
AIT
— Automatic Identification Technology
FRS
— Frame Relay Service
NTE
— Network Terminating Equipment
ST
— Such That
LCR
— Least Cost Routing
PNP
— Plug-and-Play
VT
— Vacuum Tube
RLS
— Recursive Least Squares
TRS
— Trunked Radio Systems
PTO
— U.S. Patent And Trademark Office
UP
— User Profile
NEMP
— Nuclear Electromagnetic Pulse
SIP
— Session Initiation Protocol
SCO
— Synchronous Connection Oriented
FITL
— Fiber-In-The-Loop
SRR
— Search and Rescue Region
RCC
— Radio Common Carrier
HFC
— Hybrid Fiber Coaxial
PMP
— Project Management Professional
ESPN
— Entertainment and Sports Programming Network
CNG
— comfort noise generation
MSC
— Mobile Switching Center
BSS
— Basic Service Set
SFN
— Single Frequency Network
BSID
— Base Station Identity
OSP
— Outside Plant
DNU
— Do Not Use
AM
— Activity Manager
BSS
— Base Station Subsystem
VCI
— Virtual Channel Identifier
CIP
— Continuous Improvement Program
SCPC
— single channel per carrier
UMA
— Unlicensed Mobile Access
FHSS
— Frequency Hopping Spread Spectrum
APDU
— Application Protocol Data Units
CCLC
— Carrier Common Line Charge
ALT
— Accelerated Life Test
SSM
— Synchronization Status Message
DEM
— Digital Elevation Model
GDK
— GIMP (GNU Image Manipulation Program) Drawing Kit
RDMA
— Remote Direct Memory Access
DPCM
— differential pulse code modulation
DCA
— Dynamic Channel Assignment
LD
— Laser Diode
CALEA
— Communications Assistance for Law Enforcement Act
STM
— Scanning Tunneling Microscopy
FMS
— Fraud Management System
GTP
— GPRS (General Packet Radio Service) Tunneling Protocol
UBR
— Unspecified Bit Rate
MNP
— Mobile Number Portability
CS
— Convergence Sublayer (ATM)
CSU
— Channel Service Unit
RDBMS
— Relational Data Base Management System (Oracle)
DBRNC
— deciBel Relative to Noise in a Circuit
STM
— Synchronous Transfer Mode
SIL
— Silence
CCNA
— Cisco Certified Network Administrator
SAA
— Systems Application Architecture
DACS
— Digital Access Cross-connect System
BMS
— Business Management System
O/S
— Operating System
MIDP
— Mobile Information Device Profile
ABM
— Asynchronous Balanced Mode
NW
— North West
PARC
— Palo Alto Research Center
SPX
— Sequenced Packet Exchange
FCFS
— First-Come, First-Served
DAC
— Digital-To-Analog Converter
IRC
— International Record Carrier
L2F
— Layer 2 Forwarding protocol
NAK
— Negative Acknowledge
IOC
— Inter-Office Channel
SF
— Single Frequency
NDS
— Novell Directory Services
TM
— Thematic Mapper (Landsat)
SR
— Slow Release
DIV
— Divisionsion
CAP
— Capability
ARSR
— Air Route Surveillance Radar
AS
— Access System
CGA
— Carrier Group Alarm
PVC
— Permanent Virtual Connection
DOCSIS
— Data over Cable Service Interface Specification
E
— Echo
FEA
— Finite Element Analysis
BUFR
— Binary Universal Form for the Representation (of data)
AMA
— automatic message accounting
BS
— Broadcast Satellite
CMRS
— Commercial Mobile Radio Service
CCR
— Customer Controlled Reconfiguration (Sprint)
DDL
— Digital Data Link
FTTC
— Fiber To The Curb光纤到路边
3-D
— 3-Dimensional
2G
— Second generation cellular
CPC
— Calling Party Control
C
— Collector
RSN
— Regional Service Network
NCP
— Network Control Program
S/N
— Signal-to-Noise ratio
DII
— Dynamic Invocation Interface
FDL
— Facility Data Link
CGA
— Color Graphics Adapter
SCCP
— Signalling Connection Control Part
ASN.1
— Abstract Syntax Notation 1
PTP
— Point To point Protocol
DM
— Domain Model
CGSA
— Cellular Geographic Service Area
STD
— Secondary Telecom District
FCA
— Free Carrier Alongside
MV
— Motion Vector
PSNEXT
— Power Sum Near End Cross Talk
CCITT
— Comit? Consultatif International T?l?graphique et T?l?phonique
SM
— Service Module
TAD
— Telephone Answering Device
BHCA
— Busy Hour Call Attempts
CSC
— Common Signaling Channel
CTI
— Computer Telephony Integration
DL
— Downlink Message
FIOS
— Fiber Optic Services
CAR
— committed access rate
SB
— Switchboard
STU
— Secure Telephone Unit
PCI
— Personal Computer Interface
PNP
— Positive-Negative-Positive
CONUS
— Contiguous United States
PC
— Peripheral Controller
ACP
— Access Control Point
WARC
— World Administrative Radio Conference
SA
— Selective Availability (on GPS transmissions)
CPC
— Continous Packet Compression
VPX
— Virtual Path Cross-Connect
CSIRO
— Commonwealth Scientific and Industrial Research Organization
CPE
— Customer Premise Equipment
IRF
— Impulse Response Function
DFG
— difference-frequency generation
DICOM
— Digital Imaging and Communications in Medicine
BS
— Backing Store
DA
— deca
SS1
— Signalling System 1 (500/20 Hz tones)
ADPCM
— Adaptive Differential Pulse Code Modulation
SSRC
— Synchronization Source
UMTS
— Universal Mobile Telecommunication System
CDDI
— Copper Distributed Data Interface
ESN
— Electronic Serial Number
SCM
— Single-Carrier Modulation
DHD
— Dial Home Device
UAT
— Universal Access Transceiver
XC
— Cross-Connect
CB
— Citizens' Band
MBE
— Molecular Beam Epitaxy
M/W
— MicroWave
NTSC
— National Television Standards Committee
VLSI
— Very Large-Scale Integration
DGPT
— Directorate General of Posts and Telecommunications
BSS
— Base Station System
VSAM
— Virtual Storage Access Method
SM OFC
— Single-Mode Optical Fiber Cable
EM
— Electromigration
ALB
— Analog Loopback
GBT
— Ground Based Tower
SMR
— Specialized Mobile Radio
ZCZ
— Zero Correlation Zone
FRS
— Family Radio Service
BWD
— backward
ATSC
— Advanced Television Systems Committee
SYSADM
— System Administrator
PTT
— Push to Talk Technology
DOR
— Detailed Outage Report
VC
— Virtual Circuit (ATM)
DTN
— Data Transfer Network
#
— Number sign, octothorp; special function key
HSPA
— High Speed Packet Access
SDU
— Signal Distribution Unit
COO
— Cell of Origin
STD
— Subscriber Trunk Dialing
3G
— 3rd Generation Wireless Format
LUNT
— Line Unit Network Termination
SAS
— Special Access Surcharge
TDWR
— Terminal Doppler Weather Radar
CSAR
— Combat Search and Rescue
MSDP
— Multicast Source Discovery Protocol
DMT
— Discrete Multi-Tone Technology
CIS
— Computer and Information Science
BCS
— British Computer Society
MGC
— Multimedia Gateway Controller
VPWS
— Virtual Private Wire Service
ANSI-41
— ANSI standard for mobile management
IT
— Integration Test
CRB
— Cramer-Rao Bound
ECM
— Error Correction Model
SE
— Southeast
MAG
— Mobile Access Gateway
MITI
— Ministry of International Trade and Industry
PTT
— Push to Talk Testing
REPT
— Report
SPE
— Synchronous Payload Envelope
RDS
— Rate Determining Step
DFE
— Design For Environment
NLM
— NetWare Loadable Module
BUS
— Broadcast and Unknown Server
PTT
— Push to Talk Taster
NT
— New Technology, also Windows NT
EPP
— Enhanced Parallel Port (PC)
TUR
— Trunk Utilization Report
ACE
— Adaptive Communication Environment
MAI
— Multiple Access Interference
ISG
— Information Systems Group
ARCNET
— Attached Resource Computer Network
SRM
— Scalable Reliable Multicast
SQ
— Service Quality
SSAP
— Source Service Access Point
IG
— Interface Group
ADC
— Administration Center
SAF
— System Access Fee
IS 41
— Interim Standard 41 (Inter-Cellular Network Communication Protocol)
CAAS
— Communications-as-a-Service
DMI
— Distributed Management Interface
B8ZS
— Binary Eight Zero Substitution
LANE
— Local Area Network Emulation
CGI
— Computer Graphics Interface
INMS
— Integrated Network Management System
VAN
— Value-Added Network
PSS
— Performance Support System
MTI
— Moving Target Indicator
CS
— Central Station
MTA
— Message Transfer Agents (Internet)
URN
— Uniform Resource Namespace
TMS
— Time Management System
MLM
— Multi-Longitudinal Mode
ATCA
— Advanced Telecom Computing Architecture
GRX
— GPRS Roaming Exchange
TSP
— Telecommunications Service Priority
OSCAR
— Orbiting Satellite Carrying Amateur Radio
ARM
— Asynchronous Response Mode
CS-PDU
— Convergence Sublayer - Protocol Data Unit
FIRST
— Forum of Incident Response and Security Teams (CERT)
ECS
— Environmental Control System (Subsystem)
NA
— Network Adapter
ANS
— Advanced Network Services
WIS
— WAN (Wide Area Network) Interface Sublayer
LOO
— Likelihood of Occurrence
LASA
— Large Aperture Seismic Array
SETI
— Search for Extraterrestrial Intelligence
WTP
— Wireless Transaction Protocol
*
— Star, special function key
DDD
— Direct Distance Dialing
AVR
— Automated Voice Response
ADC
— Access Deficit Charge
MC/MIC
— Mode Common/Mode Indicate Common
RM-ODP
— Reference Model for Open Distributed Processing
MAU
— Multistation Access Unit
WDN
— Wireless Developer Network
IPM
— Inches Per Minute
LASINT
— Laser Intelligence
DMS
— Defense Messaging System
AAL5
— ATM (Asynchronous Transmission Mode) Adaptation Layer 5
LBR
— Low Bit Rate
COT
— Central Office Terminal
TSE
— Toronto Stock Exchange
MAP
— Mobile Application Part
TAM
— Telephone Answering Machine
PLL
— Phase Locked Loop
BSA
— Basic Service Area
FEBE
— Far End Block Error (SONET)
VTAM
— Virtual Telecommunication Access Method
LP
— Line Pair
EGSM
— Extended Global System for Mobile Communications
ETF
— Early Termination Fee
RMON
— Remote Monitoring
SPIN
— Service Provider Identification Number
BOSS
— Binary Object Storage System
PSN
— Public Switched Network
EMR
— Electromechanical Relay
OLS
— Optical Line System
EVA
— Electronic Video Agent
TRS
— Telecommunications Relay Service
ETN
— Electronic Tandem Network
SAT
— Satellite
MTS
— Message Transfer System
CLK
— Clock
AWT
— Agence Wallonne des Télécommunications
L2TP
— Layer 2 Tunneling Protocol
ENV
— Environment
3GSM
— Third-generation Global System for Mobile (communications)
WVPN
— Wireless Virtual Private Network
DM
— Differential Mode
JISC
— Japanese Industrial Standards Committee
VG
— Voice Grade
DQDB
— Distributed Queue Dual Bus
SDNS
— Secure Data Network System
BAN
— Building Area Network
BIND
— Berkeley Internet Name Domain
DDU
— Disk Drive Unit
RADIUS
— Remote Authentication dial In User Service
TBPS
— Terabits Per Second
LSAP
— Link Service Access Point
NRP
— Network Resource Planning
LIM
— Line Isolation Monitor
CCA
— Carrier-Controlled Approach
SCR
— Sustainable Cell Rate
EDFA
— Erbium-Doped Fiber Amplifier
TBCD
— Telephony Binary Coded Decimal
FOIP
— Fax Over Internet Protocol
ETOC
— Electronic Table of Contents
CND
— Calling Number Display
UPT
— Universal Personal Telecommunications
ARD
— Automatic Ring Down
WDA
— Wireless Digital Assistant
TLT
— Test Loop Translator
DPNSS
— Digital Private Network Signaling System
MPI
— Minimum Picture Interval
CASE
— Computer-Aided Software Engineering
FIFO
— first-in, first-out
CIP
— Carrier Identification Parameter
DXC
— Digital Cross Connect
BAP
— Bandwidth Allocation Protocol
WNMS
— Wireless Network Management System
SIA
— Securities Industry Association
S/D
— Source/Drain
NAU
— Network Addressable Unit
OML
— Object Model Library
DCS
— Defense Communications System
P
— Priority
TEI
— Terminal Endpoint Identifier
A/C
— Air Conditioner
OODBMS
— Object-Oriented Database Management Systems
SEM
— Scanning Electron Microscopes
BIOS
— Basic Input-Output System
OXCO
— Oven-Controlled Crystal Oscillator
QOI
— Quality of Information
TC
— Technical Committee (HL7)
TSB
— Telecommunication Standardization Bureau
ALI
— Automatic Location Information
CPG
— Converged Packet Gateway
LN
— Line
LMDS
— Local Multipoint Distribution Service
N-AMPS
— Narrowband Advanced Mobile Phone System
RSL
— Restricted Service License
ILEC
— Incumbent Local Exchange Carrier
3GPP
— Third-Generation Partnership Project
DARTS
— Design Approach for Real-Time Systems
DXI
— Data Exchange Interface
AECT
— Association for Educational Communications and Technology's
SNIX
— Single Noise Interference Xterminator
3G HSPA
— Third-Generation High-Speed Packet Access
PTM
— Packet Transport Mode
RADARSAT
— Radar Satellite
TOC
— Telecommunication Operations Center
USRT
— Universal Synchronous Receiver/Transmitter
WAYP
— White and Yellow Pages
FTTK
— Fibre To The Kerb
OOK
— On/Off Keying
SSM
— Spread Spectrum Modulation
ELFEXT
— Equal-Level Far-End Cross-Talk
RDT
— Remote Digital Terminal
DAP
— Distributed Array Processor
CDV
— Cell Delay Variation(ATM)
FEAT
— Feature
MILNET
— Military Network
SN
— Service Number
PIM
— Protocol Independent Multicast
IPRC
— Intellectual Property Rights Committee
DSI
— Digital Speech Interpolation
CT
— Computer Terminal
DXF
— Data Exchange Format
COM
— Comedy Central
PSO
— Professional Services Organization
DSSSL
— Document Style Semantics and Specification Language
TAX
— Trunk Automatic Exchange
LDN
— Local Directory Number
EBIC
— Electron Beam Induced Current
EST
— Electroshock Therapy
DUV
— Data-Under-Voice
DTI
— Digital Trunk Interface
CALS
— Computer Aided Acquisition and Logistic Support
FTS
— Federal Telecommunications System
CEPT
— Conférence Européenne des Administrations des Postes et des Télécommunications
NAP
— Network Access Point
BORSCHT
— Battery feed, Overvoltage protection, Ringing, Signaling, Coding, Hybrid, and Testing
CP
— Call Processing
SLV
— Satellite-Launch Vehicle
DAC
— Digital to Analog Converter-Audio
FAS
— Frame Alignment Signal
BCST
— Broadcast
INE
— Intelligent Network Element
FGA
— Feature Group A
FGD
— Feature Group D
ECDIS
— Electronic Chart Display Information System
DLT
— Delete
SCH
— Synchronization Channel
RAU
— Remote Access Unit
ISI
— Intersymbol Interference
DLU
— Digital Line Unit
X
— X Window System
LCGN
— Logical Channel Group Number
GTB
— Global Telecom Brokers
SCCS
— Switching Control Center System
MMM
— Mobile Media Mode
KSPS
— KiloSymbols Per Second
SCCP
— Signaling Connection Control Point
LOP-P
— Loss Of Pointer - Path
CAM
— Common Access Method
VISSR
— visible and infrared spin scan radiometer (GOES)
PY
— person-year
BA
— Behaviour Aggregate
CBWFQ
— Class Based Weighted Fair Queueing
CFR-47
— Code of Federal Regulations Title 47 (FCC)
SLIC
— Subscriber Line Interface Circuit
TACSAT
— Tactical Satellite
HUACA
— Hang Up And Call Again
PMT
— Photo Multiplier Tube
RXQUAL
— Received Signal Quality
WSP
— Wireless Service Provider
OSA
— Open System Architecture
GFC
— Generic Flow Control (ATM)
DE
— Discard Eligibility (ATM)
EDSX
— Electronic Digital Signal Cross-Connect
SRL
— Singing Return Loss
V
— Variable
F/W
— Firmware
WRED
— Weighted Random Early Detection
LFTYR
— Ley Federal de Telecomunicaciones y Radiodifusión
DCF
— Distributed Coordination Function
GERAN
— GSM (Global System for Mobile communications) Edge Radio Access Network
KTS
— Key Telephone System
WAAS
— Wide Area Augmentation System
SPID
— Service Profile Identifier
SD
— Speed Dial
AP
— Action Point
NMC
— Network Management Center
ADCCP
— Advanced Data Communication Control Procedures
BT
— Bluetooth Tablet
DNC
— Do Not Call
LSI
— Large-Scale Integration
CERN
— Conseil Europeen Pour La Recherche Nucleaire
FRF-LMI
— Frame Relay Forum - Local Management Interface
PLCP
— Physical Layer Convergence Procedure
4WA
— Four Wire Analog
BDSL
— Broadband Digital Subscriber Line
CAMEL
— Customized Applications for Mobile-network Enhanced Logic
RS
— Receive Signature
DDI
— Direct Dialing Incoming
EV
— electronvolt
DF
— Direction Finding or Finder
ARPT
— Autorité de Régulation des Postes et Télécommunications
ATRAC
— Adaptive Transform Acoustic Coding
AQP
— Association for Quality and Participation
3G
— Third Generation (mobile communication system)
FAT
— Final Acceptance Testing
TEL & TEL
— TELephone and TELegraph
PMOS
— P-channel Metal Oxide Semiconductor
CLI
— Calling Line Identification
SCU
— System Control Unit
CACM
— Communications of the ACM
O
— objective
UTL
— Utility
HUP
— Hook-UP
WSA
— Wireless Security Auditor
IMPI
— IP (Internet Protocol) Multimedia Private Identity
RICK
— Repeater Interface Communications Kit
MR
— Mobile Router
IMP
— Interface Message Processor
GAN
— Global Area Network
PDL
— Positioning Data Link
RTC
— Real-Time Control
CBQ
— Class-Based Queuing
RWIN
— Receive Window
ECTF
— Enterprise Computer Telephony Forum
MNOS
— Metal-nitride-oxide Semiconductor
PCS
— Personal Communications Services
ZD
— Zero Defects
PSK
— Phase Shift Key
STA
— Science and Technology Agency (Japan)
RNR
— Receive Not Ready
CACH
— Call Appearance Call Handling
CSR
— Customer Service Request
CAS
— Column Address Strobe
ACF
— Access Coordination Function
WFA
— Wait for Answer
LIF
— Logical Interchange Format
CDA
— Communications Decency Act's
MLA
— Modern Language Association
3GIP
— Third Generation Internet Protocol
SMMR
— Scanning Multichannel Microwave Radiometer
BABT
— British Approvals Board for Telecommunications
XRF
— X-Ray Fluorescence
DNI
— Data Network Interface
ASD
— Alternative Service Delivery
FOD
— Fax on Demand
A/D
— Analog-to-Digital converter
CDV
— Compressed Digital Video
DUN
— Dial-Up Networking
DMT
— Discrete Multi-Tone
BATM
— Basic Telecommunication Access Method
SN
— Stock Number
TDM
— Time Division Multiplexing
MOS
— Metal Oxide Semiconductor (FET Devices)
NAM
— Number Assignment Module
DLL
— Digital Local Line
DAS
— Distributed Antenna System
CCSA
— Common Control Switching Arrangement
NETBIOS
— Network Basic Input-Output System
TOU
— Time of use (rate) (electricity)
UNI
— User-Network Interface
CIC
— Carrier Identification Code
HEC
— Header Error Control
LRQ
— Location Request
TON
— IEEE/ACM Transactions On Networking
CIP
— Channel Interface Processor
EFCI
— Explicit Forward Congestion Indication (ATM)
AAV
— Alternate Access Vendor
ATD
— Advanced Technology Demonstration
FAC
— Forced Authorization Code
PHY
— Physical Layer
IXC
— interexchange carrier
DPT
— Dynamic Packet Transport
VFL
— Visual Fault Locator
MBMS
— Multimedia Broadcast/Multicast Service
SR
— Service Request
DCAS
— Downloadable Conditional Access System
OST
— Office of Science and Technology
CCR
— Current Cell Rate (ATMF)
RNX
— Restricted Numeric eXchange
LH
— Link Handler
ADPC
— Automatic Data Processing Center
COMB
— Combined
CE
— Channel Element
NF
— Noise Factor
EMF
— Event Management Framework
HDTV
— High-Definition Television
TRIG
— Trigger
FAW
— Frame Alignment Word
FOC
— Fiber-Optic Cable
QSTN
— Question
AAL
— ATM (Asynchronous Transmission Mode) Adaptive Layer
UTRAN
— UMTS (Universal Mobile Telecommunication System) Terrestrial Radio Access Network
VN
— Virtual Network
FGDC
— Federal Geographic Data Committee's
GI
— Graded-Index
CRV
— Call Reference Value
AIS-L
— Alarm Indication Signal - Line
DCMES
— Dublin Core Metadata Element Set
SAR
— Segmentation and Reassembly (ATM)
MA
— Maintenance Action
EF&I
— Engineering, Furnishing and Installation
RS-422
— Recommended Standard 422 (ANSI/EIA standard for transmitting serial data)
ACU
— Automatic Calling Unit
EDC
— Electronic Dispersion Compensator
AAP
— Alternate Access Provider
LSP
— Label Switched Path
BSC
— Base Station Controller
BONDING
— Bandwidth On Demand Interoperability Group
VNL
— Via Net Loss
DMT
— Discrete Multi-tone Transmission
ATU-C
— ADSL (Asymmetric Digital Subscriber Line) Transceiver Unit - Central office end
RPCU
— Radio Port Control Unit
TSG
— Telephone Security Group
CTE
— Computer Telephony Engineer
Z
— Zulu Time
USF
— Universal Service Fund
FDOA
— Frequency Difference Of Arrival
CTIA
— Cellular Telecommunications Industry Association
FTTP
— Fiber To The Premises
RLC
— Radio Link Control
BCSM
— Basic Call State Model
MDN
— Mobile Directory Number
CPH
— Call Party Handling
ACA
— Adaptive Channel Allocation
KEK
— Key Encrypting Key
MFC
— Multi-Frequency Code
WFT
— Wireline Formation Test
ILETS
— International Law Enforcement Telecommunications Seminar
NRZ
— Nonreturn To Zero
EECM
— End-to-End Call Manager
SMS
— System Management Server
AWG
— arrayed waveguide grating
P2P
— Person-to-Person
BNCC
— Base Network Control Center
NHRP
— Next Hop Resolution Protocol (ATM)
LCAS
— Link Capacity Adjustment Scheme
SDSL
— Symmetrical Digital Subscriber Line
DTE
— Digital Terminal Equipment
GSTN
— General Switched Telephone Network
FNN
— Full National Number
WTS
— Wireless Telecommunications Symposium
WE
— Western Electric
TP-PMD
— Twisted Pair Physical Medium Dependent
CLCC
— Ceramic Leaded Chip Carrier
LCP
— Local Control Point
FLL
— Fixed-Loss Loop
LORAN
— Long Range Aid to Navigation System
EVC
— Electronic Voucher Charging
MO
— Magneto-optic
FDI
— Feeder Distribution Interface
IDCP
— Internet Device Control Protocol
BOA
— Basic Object Adapter
UNI
— User Network Interface
DNSIX
— Defense Network Security Information Exchange
FB
— Fine Business
UNO
— Universal Network Operations
FXS
— Foreign Exchange Subscriber
ICL
— Inserted Connection Loss
SIM
— Subscriber Identification Module
CV
— Coding Violation
DSU
— Digital Service Unit
NIMH
— Nickel-Metal Hydride
SMSC
— Short Message Service Center
WSP
— Wireless Session Protocol
ATB
— Above-Ground Telecommunications Backbone
BPP
— Billed Party Preference
CDM
— Conceptual Data Model
PACS
— Personal Access Communications System
GMSS
— Global Mobile Satellite System
ALOC
— Average Length Of Call
100VG
— 100 Voice Grade (IEEE 802.12 AnyLAN Standard)
LSC
— Link State Control
BRAN
— Broadband Radio Access Network
BIC
— Bus Interface Controller
PMT
— Program Management Team
TX
— Transmit
RDSS
— Radio Determination Satellite Service
PLCP
— Physical Layer Convergence Protocol (ATM)
NC
— Network Computer (PC Internet)
MH
— Message Handler
ASAS
— All-Source Analysis System
FCA
— Fixed Channel Allocation
LMT
— Lightwave Microcell Transceiver
IBS
— In-Building Solutions
PTCL
— Pakistan Telecommunication Company Ltd
BB
— Blackberry
GTM
— Go to Meeting
MMDS
— Multichannel Multipoint Distribution Service
CCCH
— Common Control Channel
PTI
— Payload Type Indicator
VADB
— Virtual Auto Dial Backup
LB
— Local Battery
UAN
— Universal Area Network
MF
— Multiple Frequency
DMT
— Digital-Discrete Multi-Tone
MC
— Maintenance Control
EM
— Element Manager
ADM
— Administration, Office of
BTN
— Billing Telephone Number
SMT
— station management (protocol)
SCR
— System Change Request
LAPB
— Link Access Protocol-Balanced
AARQ
— A-Associate Request
MGCP
— Multimedia Gateway Control Protocol
ETOM
— Enhanced Telecom Operations Map
LEED
— Low-energy Electron Diffraction
TP
— Transition Point
STMR
— Sidetone Masking Rating (telecommunications)
LOB
— Line Of Bearing/Balance
RCP
— Right-Hand Circular Polarization
SMS
— Service Management System
LDI
— Long Distance Interconnect
VAD
— Voice Activity Detection
INTELSAT
— International Telecommunications Satellite
CON
— Concentrator
BHA
— Busy Hour Attempts
BOM
— Bit-Oriented Message
PMMA
— Polymethyl Methacrylate
AAL2
— ATM (Asynchronous Transmission Mode) Adaptation Layer 2
VCT
— Variable Cam Timing
ETSI
— European Telecommunications Standards Institute
GOSIP
— Government Open Systems Interconnection Profile
AB
— Answer Back
TRX
— Tandem Repeater eXchange
AAV
— Alternative Access Vendor
ATS
— Abstract Test Suite
DPA
— Distributed-Power Architecture
TCS
— Telephony Control Specification
NSE
— Network Software Environment
CPOP
— Circuit Precedence Over Packet data
DTU
— Date/Time Update
VSM
— Vestigial Sideband Modulation
WIVO
— WIreless VelOcity
SDN
— Software Defined Network
ADF
— Application Dedicated File
DC
— Device Control
NCF
— Network Control Facility
ULL
— Unbundled Local Loop
TU
— Transmission Unit
ISSI
— Inter-Switching System Interface
BASIZE
— Buffer Allocation Size
AOS
— Alternate Operator Service
BIS
— Brought Into Service
QOTS
— Quality Of Telephone Services
SAPI
— Service Access Point Identifier
UCM
— Use Case Map
EC-N
— Electrical Carrier (n=a number, e.g., EC-4)
SMU
— Service Management Unit
LLA
— Link Level Access
DTAP
— Direct Transfer Application Process
VPC
— Virtual Path Connection (ATM)
TDRS
— Tracking and Data Relay Satellites
ATTRA
— Appropriate Technology Transfer for Rural Areas
CLP
— Cell Loss Priority (ATM)
PT
— Payload Type (ATM)
GOSIP
— Government Open System Interconnection Profile
E
— Exchange
DS-3
— Digital Signal, Level 3
4WAI
— Four-Wire Analog Interface
MP
— Modulation Parameter
CMA
— Communications Management Association
CAPTAIN
— Character And Pattern Telephone Access Information Network
RAD
— Recorded Announcement Device
CRBT
— Color Ring Back Tone
FFH
— Fast Frequency Hopping
DRQ
— Disengage Request
SGSN
— Serving GPRS (General Packet Radio Service) Support Node
TCB
— Telecommunication Certification Body
SSN
— Switched Service Network
LTU
— Line Terminating Unit
RSL
— Remote Serial Link
TCAM
— Telecommunications Access Method
ET
— Electronic Transmission
FPLMTS
— Future Public Land Mobile Telecommunications System
TESMA
— Telecommunications Equipment and Services Master Agreement
AIS-P
— Alarm Indication Signal - Path
B-CPE
— Broadband Customer Premises Equipment
ESCON
— Enterprise System Connection
ADM
— Administration Building
ILD
— International Long Distance
BHCC
— Busy Hour Call Completions
CCS
— Call Center Service
RRC
— Root Raised-Cosine
SS7
— Signaling System 7
CRS
— Cell Relay Service
DOV
— Data-Over-Voice
EC
— Equipment Controller
VSAT
— Very Small-Aperture Terminal
DMNG
— Digital Mobile News Gathering
SBX
— Small Business Exchange
BSC
— Bi-Synchronous Communications
AIS-V
— Alarm Indication Signal - Virtual
SN
— Switching Network
LCF
— Location Confirm
TSI
— time-slot interchange
TJB
— Telephone Junction Box
AMTFT
— Active Matrix Thin Film Transistor
SOR
— Statement of Requirements
TD
— Transmit Data
DTL
— Defense Telephone Link
MA
— Message Analysis
LCU
— Lightweight Computer Unit
GSM-R
— Global System for Mobile (communications) – Rail
RADSL
— Rate Adaptive Digital Subscriber Line
GRUB
— Greedy Reclamation of Unused Bandwidth
DS-1
— Digital Signal, Level 1
JSC
— Joint Scientific Committee (ICSU, WCRP, and WMO)
STD
— Standard Deviation
ARFA
— Allied Radio Frequency Agency
BT
— Burst Tolerance
WTNM
— Working Telephone Number Management
WRT/R
— Wireless Transmitter/Receiver
BAF
— Bellcore AMA (Automatic Message Accounting) Format
PSLV
— Polar Satellite Launch Vehicle (Indian Space Research Organization; India)
DNA
— Digital Network Architecture
DPBX
— Digital Private Branch Exchange
DOD
— Direct Outward Dialing
SRA
— Seamless Rate Adaptation
UMTS
— Universal Mobile Telecommunications Service
CRTS
— Cellular Radio Telecommunications Service
ET
— Exchange Terminal
WIN
— Wireless Intelligent Network
CFS
— Call for Service
CDPD
— Cellular Digital Packet Data
SH
— Shell
SASL
— Simple Authentication and Security Layer
VOB
— Voice Over Broadband
ADM 3X
— DS3 Add-Drop Multiplex
FC
— Frame Control
MPU
— Main Processor Unit
AIU
— Analog Interface Unit
CCCI
— Command, Control, Communications and Intelligence
WNAN
— Wireless Neighborhood Area Network
M
— Memory
VOFR
— Voice Over Frame Relay
LS
— Loop Start
CLF
— Carrier Line Failure
MIS
— Marketing Intelligence System
IVP
— Integrated Voice Protocol
COP
— Character Oriented Protocol
WAE
— Wireless Application Environment
IBSS
— Independent Basic Service Set
EADAS
— Engineering and Administrative Data Acquisition System
CD-ROM
— Compact Disk-Read-Only Memory
LPDP
— Local Policy Decision Point
SINS
— Ship’s Inertial Navigation System
DDU
— Digital Data Unit
ROSE
— Remote Operations Service Element
DECT
— Digital Enhanced Cordless Telecommunication
AEA
— American Electronics Association's
FI
— Format Identifier
WFG
— Wireless Firewall Gateway
802.11 HR
— High data Rate IEEE 802.11 Wireless LAN protocol
NANP
— North American Numbering Plan
LULT
— Line Unit/Line Termination
AFCEA
— Armed Forces Communications and Electronics Association's
CFOT
— Certified Fiber-Optic Technician
CATI
— Computer-Assisted Telephone Interviewing
SLBM
— Submarine-launched ballistic missile
CSDU
— Core Service Data Unit
VLP
— Very Low Power
RFR
— Radio Frequency Radiation
BPSK
— Binary Phase-shift Keying
ATIS
— Automatic Transmitter Identification System
PTE
— Path Terminating Equipment (SONET)
ESM
— electronic support measure
MIN
— Mobile Identification Number
EEROM
— Electronically Erasable Read-Only Memory
GSM
— Global System for Mobile telecommunications
FPS
— Framing Pattern Sequence
4WE&M
— Four-Wire Ear and Mouth
PGP
— Pretty Good Protection (encryption)
RTB
— Retransmission Buffer
EKTS
— Electronic Key Telephone Set
CM
— Connection Manager
COC
— Central Office Connection
C²
— Command and Control
IR
— International Roaming
IMT-2000
— International Mobile Telecommunications 2000
TAPI
— Telephony Application Programming Interface
CBMS
— Computer-Based Message System
BUS
— Business Units
AA
— Auto-Answer
FLN
— Fixed Line Network
DPDT
— Double-Pole Double-Throw
CMIS
— Common Management Information Service
WVOIP
— Wireless Voice over Internet Protocol
TEM
— Transmission Electron Microscope
OTF
— On-The-Fly (data acquisition method)
MB
— Measured Business
NICT
— National Institute of Information and Communications Technology
FESS
— Flywheel Energy Storage System
CCS
— Common Command Set
UCF
— Unregistration Confirm
IDCU
— Integrated Digital Carrier Unit
TSC
— Test System Controller
RCU
— Radio Control Unit
OMP
— Open Management Platform
ANAC
— An Automatic Number Announcement Circuit
AGCH
— Access Grant Channel
DE
— Discard Eligible
MBS
— Maximum Burst Size (ATM)
VCC
— Voice Call Continuity
IMTS
— Improved Mobile Telephone Service
TRANSEC
— Transmission Security
SOH
— Section Overhead
DECCO
— DISA Defense Commercial Communications Office
TCL
— Transverse Conversion Loss
CAE
— Common Application Environment
UMTS
— Universal Mobile Telecommunications Standard
CTO
— Commonwealth Telecommunications Organisation
CD ROM
— Compact Disc Read-Only Memory
VO
— Voice Only
SGCP
— Simple Gateway Control Protocol
CLD
— Cross-Layer Design
CC
— Composite Clock (SONET)
DIL
— Direct Inward Line
APPN
— Advanced Peer-to-Peer Network
COFA
— Change Of Frame Alignment
AWS
— Advanced Wireless Services
PSDN
— Public Switched Digital Network
MIR
— Maximum Information Rate
VTIR
— visible and thermal infrared radiometer
FMR
— Follow Me Roaming
DPST
— Double-Pole Single-Throw
UDP
— Up Down Pair
MEH
— Mobile-Executed Handoff
4G
— Fourth Generation
RDT
— Recall Dial Tone
DME
— Distributed Management Environment (OSF)
CNID
— Calling Number Identification Display
PD
— Pulse Duration
MERIS
— medium-resolution imaging spectrometer
SSU
— Stratospheric Sounding Unit (TOVS)
ACM
— Address Complete Message
BTS
— Base Transceiver Station (cellular)
CELP
— Code Excited Linear Prediction
CDVT
— Cell Delay Variation Tolerance
SLIC
— Subscriber Loop Interface Circuit
TCA
— Threshold Crossing Alert
INSAT
— Indian National Satellite
PVN
— Private Virtual Network
ATU-R
— ADSL (Asymmetric Digital Subscriber Line) Transceiver Unit - Remote terminal end
ICI
— Interexchange Carrier Interface
TOMS
— Telecom Operations Management System
TCAP
— Transaction Capabilities Application Part
JWP
— Joint Working Party
TT
— Text-Telephone
ACRE
— Authorization and Call Routing Equipment
ARS
— Automatic Route Selection
APS
— Advanced Power System
ZBTSI
— Zero Byte Time Slot Interchange
CMTS
— Cellular Mobile Telephone System
CYTA
— Cyprus Telecommunications Authority
CCS
— Common Channel Signaling
ANSI
— Advanced Network Signaling Input
ALI
— Automatic Location Identifier
LDM
— Limited Distance Modem
SSU
— Synchronization Supply Unit
WDSL
— Wireless Digital Subscriber Line
APPC
— Advanced Program-to Program Communications
2G
— Second-generation mobile telephone system
REG
— range extender with gain
WATS
— Wide Area Telecommunications Service
WPBX
— Wireless Private Branch Exchange
IPXCP
— Internetwork Packet Exchange Control Protocol
BTP
— Business Telecom Products, Inc.
NICAD
— Nickel Cadmium
RTU
— Right to Use
CDA
— Communications Decency Act of 1996
PLE
— Path Length Efficiency
MRCA
— Most Recent Common Ancestor
WBMP
— Wireless Bitmap
HU
— Hook Up
ALCAP
— Access Link Control Application Protocol
CPAP
— Customer Premises Access Profile
AEIMP
— Apple Event Interprocess Messaging Protocol
CID
— Craft Interface Device
EGPRS
— Enhanced General Packet Radio Service
JWG
— Joint Working Groupof
RJ-11
— Registered Jack type 11 (4-wire connector)
ACNA
— Access Customer Name Abbreviation
MSG
— Management Steering Group
DDM
— Data Distribution Manager
VGF
— Voice Grade Facility
RBOC
— Regional Bell Operating Company (Baby Bell)
CCH
— Common Channel Handler
ATB
— All Trunks Busy
CSTA
— Computer Supported Telecommunications Applications
PDSO
— Packet Data Security Overlay
SCORM
— Shareable Content Object Reference Model
PTM
— Point-To-Multipoint
PFE
— Power Feed Equipment
CD
— Committee Draft
AH
— Authentication Header
FMS
— Fixed Mobile Substitution
OS/2
— Operating System/2
DPT
— Dial Pulse Terminate
MQFP
— Metric Quad Flat Pack
SNI
— Subscriber Network Interface
TMF
— Telecommunications Management Forum
NFR
— Near-Field Recording
NC
— Network Channel
CSLIP
— Compressed SLIP
FUD
— Fair Use Doctrine
SYNC
— Synchronization
DFT
— Draft
VLR
— Visitor Location Register
VR
— Virtual Router
LAT
— Local Area Transport (network)
MITS
— Metaphors for Integrated Telecommunications Services
TSDU
— Transport Service Data Unit
TMTC
— Telemetry and Telecommand
CSCW
— Computer-Supported Cooperative Work
BSRF
— Basic System Reference Frequency
ACL
— Asynchronous Connection-less Link
ATIS
— Alliance for Telecommunications Industry Solutions
ADC
— Advanced Data Control
CCSS6
— Common Channel Signaling System # 6
ANT
— ADSL Network Terminator
TIMS
— Telephone Information Management System
RTFM
— Read The Friendly Manual
CSR
— Customer Service Report
ACMA
— Atlantic Cable Maintenance Agreement
VDR
— Voice Digitization Rate
TWX
— Teletypewriter Exchange Service
LRM
— Long Reach Multimode
AVT
— Audio Visual Telecommunications
SR
— Scanning Radiometer
BREW
— Binary Runtime Environment for Wireless
TP
— Telephone Pole
ADIF
— Accounting Data Interchange Format
NSEP
— National Security Emergency Preparedness
TTC
— Telemetry Telecommand and Control
OMF
— Object Management Framework
SQL
— Specified Quality Level
REN
— Ringer Equivalence Number
SDLC
— Systems Development Life Cycle
BCIX
— Berlin Commercial Internet Exchange
LIDB
— Line Information DataBase
PCCA
— Portable Computer Communications Association
PJC
— Pointer Justification Count
NSDI
— National Spatial Data Infrastructure
TCM
— Time Compression Multiplexer
FR-SSCS
— Frame Relay Service Specific Convergence Sub-Layer
GS
— Ground Start
NESC
— National Electrical Safety Code
VTI
— Vietnam Telecom International
NEF
— Network Element Function
ETB
— Empresa de Telecomunicaciones de Bogotá
NSN
— National Significant Number
MEECN
— Minimum Essential Emergency Communication Network
BT
— Back Trace
USA
— Underground Service Alert
RCMAC
— Recent Change Memory Administration Center
TCC
— Transmission Control Code
SACS
— Security Access Control System
MVDS
— Microwave Video Distribution System
CAL
— Customer Access Line
PSQM
— Perceptual Speech Quality Measure
EDGE
— Enhanced Data for GSM (Global System for Mobile communication) Evolution
CLLM
— Consolidated Link Layer Management
VSC
— Vertical Service Code
DCO
— Dial Central Office
B-ISDN
— Broadband ISDN
USPI
— Universal Serial Phone Interface
PNM
— Pulse Number Modulation
CMS
— Conversational Monitor System
ADTS
— Ameritech Digital Transport Service
ESA
— Enhanced Subscriber Authentication
BAM
— Basic Access Module
MCR
— Minimum Cell Rate (ATM)
UIT
— Union Internationale des Télécommunications
BP
— Block Parity
PROV
— Provisioning
P&A
— Privacy and Authentication
RX
— Receiver
CCP
— Compression Control Protocol
MAPDU
— Management Application Protocol Data Unit
OSD
— Onscreen Display
CNI
— Calling Number Identification
DR
— Design Review
ATL
— Advanced Technology Laboratory
TLC
— Television the Learning Channel
EC
— Enhanced Cellular
GOMP
— Get Off My Phone
LCN
— Local Communications Network
DTW
— Dynamic Time Warping
STE
— Section Terminating Equipment
WIM
— WAP (Wireless Application Protocol) Identity Module
DDS
— Dataphone Digital Service (AT&T)
SMAS
— Service Management System
WDMW
— Web Directory for Mobile and Wireless
HCV
— High Capacity Voice
BWX
— Broadband Wireless Exchange
SSP
— Security Service Provider
NBP
— Name Binding Protocol
QPM
— QoS (Quality of Service) Policy Manager
WPC
— Wireless Personal Communications
NMC
— Nortel Matra Cellular
SMDR
— station message detail recording
RLA
— Received Level Average
ADTM
— Asynchronous Data Transfer Mode
LCU
— Line Control Unit
DACS
— Digital Access Carrier System
CWTS
— China Wireless Telecommunication Standard
CRL
— Computing Research Laboratory
DS0
— Digital Signal Zero
RAI
— remote alarm indication
MNA
— Multi-Network Area
IDLC
— Integrated Digital Loop Carrier
LTU
— Line Termination Unit
CAP
— Competitive Access Provider
CLOS
— Clear Line Of Sight
QS
— Quasi-Synchronous
VOB
— Versioned Object Base
CR
— Connection Request
IVN
— Interactive Video Network
UDT
— Unreliable Data Transfer
VDSL
— VHBR (Very High Bit Rate) Digital Subscriber Line
UCA
— Utility Communications Architecture
AFPS
— Automatic Facility Protection Switching
CALA
— Customer Address Location Area
FR
— Functional Requirement
SOHO
— SOlar and Heliospheric Observatory
TNMS
— Telecommunications Network Management System
VLF
— Vertical-Laminar-Flow
TACS
— Total Access Cellular System
CAN
— Controller Area Network
WFA
— Work Force Administration
RLC
— Reverse Link Channel
EMV
— EuroPay, MasterCard, Visa
ESG
— Enhanced Service Gateway
PSN
— Packet-Switched Network
DS-2
— Digital Signal, Level 2
DTAM
— Document Transfer and Manipulation
LI
— Length Indicator
ISD
— International Subscriber Dialling
IRLAP
— InfraRed Link Access Protocol
SDCCH
— Standalone Dedicated Control Channel
LBS
— Location-Based Services
GLT
— Great Lakes Telecom
DTU
— Data Terminal Unit
SCC
— Specialized Common Carrier
MODEM
— modulation and demodulation
DLT
— Digital Line Termination
VP
— Virtual Path (ATM)
CLASS
— Custom Local Area Signaling Services
LSMS
— Local Service Management System
WNAP
— Wireless Network Access Point
ULF
— Ultra Low Frequency
QPA
— Quality Performance Analysis
EC
— Entropy Coding
DACS
— Digital Access and Cross-Connect System
NT
— Network Termination
FT1
— Fractional T1
ESDS
— Electrostatic Discharge Sensitive
ITU-T
— International Telecommunication Union - Telecommunications section
DCC
— Digital Control Channel
DSCS
— Defense Satellite Communication System
TP
— Termination Point
SHD
— Smart Handheld Device
DTR
— Down-Time Ratio
MAPI
— Messaging Applications Programming Interface
WLAP
— Wireless LAN (Local Area Network) Access Point
IPNG
— Internet Protocol, Next Generation (now called IPv6)
RTC
— Right to Carry
VHM
— Voice Health Monitor
AADS
— Ameritech Advanced Data Services
WEDE
— Wireless Enterprise Delivery Environment
WPKI
— Wireless Public Key Infrastructure
DLE
— Digital Local Exchange
CM
— Common Mode
PVG
— Packet Voice Gateway
CDR
— call detail recording
FEAC
— Far End Alarm and Control
LRF
— Laser Range Finder
ABR
— Available Bandwidth Rate
QOSM
— Quality of Service Management
MDRAM
— Multibank Dram
HPN
— Home Phone Network
DORA
— EV-DO (EVolution-Data Optimized) standard Revision A
PRM
— Performance Report Message
AI
— Adapter Interface
NCOS
— Network Class Of Service
IPCDN
— IP over Cable Data Networks
TRCSL
— Telecommunications Regulatory Commission of Sri Lanka
ILF
— Initial License Fee
DSVD
— Digital Simultaneous Voice and Data
TRANS
— Transaction
SHR
— Self-Healing Ring
CEE
— Communaut? Economique Europ?enne
AMOLED
— Active Matrix Organic Light-Emitting Diode
AWA
— Advanced Wireless Access
PTT
— Post Telegraph and Telecommunications
CDM
— Configuration Data Manager
CU
— Cooling Unit
JMA
— Japanese Meteorological Agency
CIPOA
— Classical Internet Protocol over ATM (Asynchronous Transfer Mode)
TACSIM
— Tactical Simulation (Simulator)
PTN
— Public Telephone Network
PAM
— Pulse Amplifier Modulation
ULP
— Upper Layer Protocol
QNC
— Quick Net Connect
COBE
— Corporate Owned Business Only
DDP
— Datagram Delivery Protocol
CEPT
— Conference of European Posts and Telecommunications
FTAM
— File Transfer Access and Manipulation
BDFB
— Battery Distribution Feeder Bay
YIP
— Your Internet Phone
RYP
— Russian Yellow Pages
PC
— Project Coordinator
SPI
— Security Parameters Index
ECC
— Emergency Communications Center
LVM
— Line Verification Module
DCS
— Digital Cross-connect Switch
EC
— Echo Cancelling
STN
— Station Terrienne de Navire
IDEN
— Integrated Dispatch Enhanced Network
VNS
— Virtual Network System
PCIA
— Personal Communications Industry Association
D-AMPS
— Digital Advanced Mobile Phone Service
LZ
— Lempel-Ziv compression algorithm
C
— Connectivity
VCR
— Videocassette Recorder
RTT
— Roof Top Tower
GEO
— Geostationary Earth Orbit
RCF
— Remote Call Forwarding
DORK
— Disciples Of The Righteous King
BFS
— Broadcast File System
WDP
— Wireless Datagram Protocol
ADAD
— Automatic Dialing Announcing Device
AAPR
— Annual Average Performance Ratio
TNI
— Telephone Network Interface
SAP
— Service Advertising Protocol
AAS
— Automatic Announcement Subsystem
LMS
— Location and Monitoring Service
ADTS
— Automated Digital Terminal System
RP
— Radio Port
DBN
— Dial-Back Number
CT
— Cordless Telecommunications
LXT
— Local Exchange Terminal
B-ISUP
— Broadband ISDN User Part
INAP
— Intelligent Network Application Part
HBH
— Hop-By-Hop
LBX
— Low Bandwidth X
QOV
— Quality of Voice
CPN
— calling party number
DISA
— Direct Inward Switch Access
LMBCS
— Lotus Mult-Byte Character Set
LMU
— Line Monitor Unit
IATA
— Intelligent Agents for Telecommunication Applications
AL
— Alignment
CPN
— Customer Premise Network
RCR
— Research and Development Center for Radio Systems
NAM
— Numeric Assignment Module
ISDP
— Intelligent Shared Dual Path
C/T
— Carrier to Noise Temperature Ratio
BSS
— Broadband Switching System
TPS
— Telephone Preference Service
CFNA
— Call Forwarding No Answer
MSS
— Mobile Satellite Service
FRSS
— Frame Relay Switching System
AT
— Attenuation
NMC
— Network Model Coverage
MT
— maintenance
OA&M
— Operations, Administration & Maintenance
WLL
— Wireless Local Loop
DPDCH
— Dedicated Physical Data Channel
AFIPS
— American Federation of Information Processing Societies
TPSP
— Third Party Service Provider
WAWS
— Washington Area Wideband System
CARS
— Community Antenna Relay Service
FD
— Full Duplex
DBF
— Digital Beam-Forming
AEE
— Agent Execution Environment
TLP
— Transmission Level Point
OIM
— Operations Interface Module
RCT
— remote Control Terminal
CSL
— component sublayer
IRAC
— Internal Review and Audit Compliance
FECC-F
— Forward Error Correction Count - Fast data
GFI
— General Format Identifier
ML-PPP
— Multilink Point-to-Point Protocol
FDMMA
— Frequency Division Multiplexing Multiple Access
OID
— Object Interaction Diagram
CLASS
— Cell Level ATM (Asynchronous Transfer Mode) Services Simulator
EA
— expedited acknowledgement
USD
— Universal Service Directive
COMPANDER
— COMpressor/exPANDER
DNA
— Do Not Answer
EM
— Engineer(ing) Manual
ZLE
— Zero-Latency Enterprise
GOS
— Gerry Otis Simpson
CCC
— Credit Card Calling
IOC
— Interoffice Channel
DEO
— Digital End Office
ATACS
— Army Tactical Communications System
QOD
— Quality of Data
ABATS
— Automatic Bit Access Test System
800
— Freephone
RBT
— Ring Back Tone
ECS
— Encryption Control Signal
CVT
— Circuit Validation Test
NRI
— Net Radio Interface
LGE
— Loop- or Ground-start Exchange
DRTL
— Dial Repeating Tie Line
DDSN
— Digital Derived Services Network
GVPN
— Global Virtual Private Network
AFRINIC
— African Network Information Centre
CPCI
— Compact Peripheral Component Interconnect
ECSA
— Exchange Carriers Standards Association
SMLC
— Serving Mobile Location Center
FIC
— Flight Information Center
CDSL
— Consumer Digital Subscriber Line
MOC
— Maintenance and Operations Console
HDSL2
— High-bit-rate Digital Subscriber Line, Second Generation
LQD
— Line Quality Disturbance
DMS
— Distribution Management System
MMJ
— Modified Modular Jack
WCMP
— Wireless Control Message Protocol
CALC
— Customer Access Line Charge
CHT
— Active
NMS
— NetWare Management System
LRB
— Loop Reverse Battery
SC
— Switching Center
DCSS
— Digital Cross-connect Systems
AMTI
— Airborne Moving Target Indicator
COI
— Community of Interest
CIS
— Center for Integrated Systems
TUP
— Telephone User Part
TFL
— Telecom Fiji Limited
FEBE-F
— Far End Block Error count - Fast data
NPSI
— Network Packet Switching Interface
NECA
— National Exchange Carrier Association
ATMS
— automatic transmission measuring system
DAF
— Directory Access Function
VPL
— Virtual Path Link (ATM)
TRAC
— Totally Reconfigurable Analog Circuit
DAVIC
— Digital Audio Video Council
DCEF
— Distributed Cisco Express Forwarding
TASI
— Time Assigned Speech Interpolation
LADS
— Local Area Data Service
ELSEC
— Electronic Security
BC
— Basic Call
PCN
— Personal Communications Networks (European PCS)
VMWI
— Voice Message Waiting Indicator
USF
— Universal Server Farm
DH
— Delivery Head
DACS
— Digital Access Cross-Connect Switch
LEC
— Liquid Encapsulated Czochralski
DOD
— Dial on Demand
WBI
— Wireless Broadband Internet
TI
— Telecom Implementation
SAMI
— Structured Adjustment & Maintenance Interface
3RNGR
— Three Ringer
RCQS
— Roaming Call Quality Sensor
SRU
— Search and Rescue Unit
NMF
— Network Management Forum
INA
— Information Network Architecture
TEHO
— Tail End Hop Off
VAR
— Value-Added Reseller
CMISE
— Common Management Information Service Element
SVW
— Sioux Valley Wireless
ATL
— Atlanta
BTO
— Betts Telecom Oklahoma
SAMA
— Spread Aloha Multiple Access
888
— Freephone
WDM
— Windows Driver Model
VDSL
— Very high-speed Digital Subscriber Line
WLNP
— Wireless Local Number Portability
DOITT
— Department of Information Technology and Telecommunications
MDCP
— Media Device Control Protocol
HDB3
— High-Density Bipolar Three-bit substitution
PVG
— Personal Voice Greeting
STUN
— Simple Traversal of UDP (User Datagram Protocol) through NAT (Network Address Translation)
RU
— Release Unit
MEI
— Multiple Extension Interworking
WBTS
— Wireless Business Telephone System
TA
— Terminal Adapter (ATM)
FOE
— Fiber Optic Equipment
UDC
— Universal Digital Channel
CCITT
— Comite Consultatif International Telegraphique et Telephonique (now ITU-T)
CMAS
— Cellular Management System
NF
— Not Found
CMOS
— Cellular Management Operation System
SMDS
— Switched Multi-megabit Data Service
QEDI
— Quod Erat Demonstrandum
SJR
— Signal-to-Jamming Ratio
ACTS
— Automated Coin Toll System
CMT
— Commercial Metering Transponder
SCMG
— SCCP Management
NARC
— Non-Automatic Relay Center
JDC
— Japan Digital Cellular
XOT
— X.25 Over TCP (Transmission Control Protocol)
ASA
— Avaya Site Administration
GPBX
— Global Private Branch eXchange
PSPDN
— Packet Switched Public Data Network
ALT
— Automatic Link Transfer
MNOC
— Mobile Network Operation Center
RSN
— Readable Serial Number
STARS
— Software Technology For Adaptable, Reliable Systems
SCE
— Service Creation Environment
TPF
— Transmission Priority Field
CTIT
— College of Telecommunications and Information Technology
DTV
— Digital Television
IDD
— International Direct Dialing
QR
— Quality record
IMT-A
— International Mobile Telecommunications - Advanced
EUMETSAT
— European Meteorological Satellite
RANAP
— Radio Access Network Application Part
FEBE-I
— Far End Block Error count - Interleaved data
OCI
— object code insertion
FWS
— Fixed Wireless Services
BMAS
— Business Management System
LAP-B
— Link Access Procedure - Balanced
RXP
— Roaming Exchange Protocol
CANARIE
— Canadian Network for Advancement of Research, Industry, Education
IDPR
— Interdomain Policy Routing
IDSL
— ISDN (Integrated Services Digital Network) Digital Subscriber Line
VLBI
— Very Long Baseline Interferometry
TMRS
— TRAFFIC MEASUREMENT AND RECORDING SYSTEMS
ISTD
— International Subscriber Trunk Dialing
ERI
— Enhanced Roaming Indicator
ENS
— Enhanced Network Services
LDB
— Last Data Bit
3WC
— Three Way calling
XWI
— XML (extensible markup language) for Wireless Images
CSP
— Converged Service Platform
BPOP
— Building Point of Presence
BTL
— Bell Telephone Laboratories, Inc.
VCA
— Voice Connecting Arrangement
CSAP
— Core Service Access Point
WGX
— Wireless Gateway Switch
V
— Vector
INWATS
— INward Wide Area Telecommunications Service
VGCP
— Voice Grade Channel Processor
DTS
— Digital Terminal Systems
RSS
— Received Signal Strength
CNE
— Certified Novell Engineer
DSX
— Digital Signal Cross-Connect
ARDIS
— Advanced Radio Data Information Service
BSSMAP
— Base Station System Management Application Part
D3
— Digital channel bank, Third generation
UR
— User Rate
ETS
— End of Transmission Signal
ITFS
— International Toll Free Services
ICTA
— Idaho Cable Telecommunications Association
RBS
— Robbed Bit Signaling
DCB
— Digital Channel Bank (Sprint)
MLHG
— Multi-Line Hunt Group
TDR
— Time Domain Reflectometer
SDP
— Software Development Process
VMU
— Virgin Mobile USA (mobile phone network)
IMT-FT
— International Mobile Telecommunications - Frequency Time
ARJ
— Admission Reject
WTA
— Western Telecommunications Alliance
SWIFT
— Society Of Worldwide Interbank Financial Telecommunications
ENUM
— tElephone NUmber Mapping
LQR
— Line Quality Report
UAC
— Uniform Annual Charge
ASP
— Active Signaling Protocol
WIPS
— Wireless Intelligent Personal Server
THZ
— TeraHertz
SNI
— Service Node Interface
BFW
— Broadband Fixed Wireless
PI
— Processor Interface
WUP
— Wired Up Privacy
XNS
— Xerox Network Systems
A/V
— Audiovisual
PTN
— Provider Telecommunications Network
BGP4
— Border Gateway Protocol 4
NQA
— Niveau de Qualite Acceptable
TWL
— Leased Teletypewriter Service
SIGTRAN
— Signaling Transport
AON
— All-Optical Network
VGC
— Voice Grade Channel
CONS
— Connection-oriented Network Services
DRTT
— Dial Repeating Tie Trunk
CCC
— Clear Channel Capability
CIU
— Communications Interface Unit
WDS
— Wireless Distribution System
CSAC
— Computer Science Accreditation Commission
TAU
— Test Access Unit
PRM
— Premium Rate
ETT
— Emerging Telecommunications Technologies
TCBH
— Time Consistency Busy Hours
DTAU
— Digital Test Access Unit
SMASE
— Systems Management Application Service Element
ISDNUP
— Integrated Services Digital Network User Part
TWX
— Teletypewriter Exchange (Telex)
STN
— Station Terrestre de Navire
DMP
— Decode Media Protocol
ARQ
— Admission Request
DFRI
— Datacom Reference Frame Input
IPN
— Intelligent Peripheral Node
RFH
— Remote Frame Handler
ELEC
— Enterprise Local Exchange Carrier
JEDEC
— Joint Electronic Devices Engineering Council
QC
— Quality Circle
UIF
— User Interface Framework
TVRO
— Television Receive-Only
WBOK
— Wireless Broadband of Oklahoma
WAPI
— Wireless LAN Authentication and Privacy Infrastructure
AASR
— Abbreviated Access Service Request
TARP
— Target Identifier Address Resolution Protocol
NR
— Nummer
FLC
— Forward Link Channel
SPT
— System Page Table
D/A
— Digital-to-Analog converter
ECA
— Extended Calling Area
HUMAN
— High-speed Unlicensed Metropolitan Area Network
PM
— Processable Mode
CD-R
— Compact Disk-Recordable
SAMS
— Service Agreement Management System
CCC
— CDMA Cluster Controller
CMAP
— Connection Management Access Protocol
TSC
— Technical Standards Committee
DCU
— Distribution and Control Unit
VTA
— Vermont Telecommunications Authority
M2M
— Multipoint-to-Multipoint
EFD
— Event Forwarding Discriminator
LLB
— Line LoopBack
ASIC
— Application Specific Instruction Code
EOI
— End of Image
RDF
— Remote Distribution Frame
FRAD
— Frame Relay Assembler/Disassembler
WFFQ
— Wireless Fluid Fair Queueing
CUG
— Closed Users Group
MHD
— Maximum Hour Demand
EPL
— Echo Path Loss
AAR
— Automatic Alternate Routing
DLC
— Digital Leased Circuit
DMB
— Disconnect and Make Busy
IPT
— Internet Protocol Telephony
RZ
— Return to Zero
VAB
— Vehicle Assembly Building
C³
— Command, Control and Communications
SPU
— Service Publication Unit
EDT
— European Deaf Telephone
IR
— Information Request
DLE
— Digital Line Equipment
DTC
— Department of Telecommunications and Cable
CSAA
— Central Service Area Authority
WDRM
— Wireless Design Reference Manual
BTU
— Basic Transmission Unit
PNE
— Path Number Efficiency
DM
— Design Manager
D/I
— Drop and Insert
ICLD
— Inter-Channel Level Difference
TPB
— Talking Phone Book
O/G
— Outgoing
LTU
— Line Test Unit
3WO
— Third Wire Open
CTTC
— Centre Tecnològic de Telecomunicacions de Catalunya
PAGCH
— Paging and Access Grant Channel
PTT
— Post, Telephone, and Telegraph (authority)
BETRS
— Basic Exchange Telecommunications Radio Service
LRF
— Location Registration Function
ALC
— Automatic Line Controller
WTA
— Wireless Telephony Applications
PMD
— Physical Media-Dependent
SCRC
— SCCP Routing Control
DS-1C
— Digital Signal, Level 1C
CSP
— Continuous Speech Processing
CDB
— Configuration Data Base
TXS
— Telephone eXchange Strowger
CUSA
— Central Urban Service Area
OPS/INE
— Operations System/Intelligent Network Element
TWA
— The Wireless Association (former Cellular Telecommunciations and Internet Association)
APR
— Alarm Processing Remote
LVDS
— Low-Voltage Differential Signalling
MMS
— Multimedia Message Service
LO
— Lockout
DECT
— Digital Enhance Cordless Telecommunications
RTU
— Remote Test Unit
OMC
— Operations and Maintenance Centre
MC
— Management Center
NS
— Non-Standard
ASTE
— Advanced Systems and Telecommunications Equipment
AS
— Active Service
WAW
— Wide Area Wireless
ITA
— Illinois Telecommunications Association
PIH
— Pin in Hole
HQGSM
— High-Quality Global System for Mobile communications
WTC
— Wireless Topic Center
SES
— Scientific and Engineering Software
WAR
— Wireless Access Revolution
HSCSWD
— High-Speed Circuit-SWitched Data
DCP
— Distributed Collaborative Planning
SS6
— Signalling System 6
DM
— delta modulation
CL
— cell loss
CLIP
— Caller Line Identification Presentation
AGPS
— Assisted Global Positioning System
PRE
— Preliminary
ACEK
— Authentication Encryption Key
TSM
— Transaction State Machine
DTF
— Digital Transmission Facility
GCS
— Global Communication System
BHP
— Burst Header Packet
VPM
— Voice Private Message
DSP
— Data Service Provider
PSC
— Picture Start Code
ECMA
— European Community Manufacturers Association
STN
— Stansted Airport railway station
ICSF
— Internet Connection Sharing and Firewall
WTL
— Wireless Transport Layer
SEM
— Sionscanning Electron Microscopy
SSCP
— System Services Control Point
PPV
— Pay-Per-View
CSV
— Circuit Switched Voice
WARP
— Wireless ATM (Asynchronous Transmission Mode) Research Project
KBS
— Kilobits per Second
DUL
— Dial-Up List
RID
— Routing Identifier
POR
— Power On Reset
ROC
— Receiver Operating Characteristic
MP
— Master Processor
802.X
— Series of LAN standards developed by IEEE
SVI
— Service Interception
TSPS
— Traffic Service Position System
DQDB
— Distributed Queue Double Bus
FTTE
— Fiber to the telecom enclosure
ACOU
— Additional Call Offering Unrestricted
EA
— Emergency Action(s)
APTG
— Asia Pacific Telecom Group
ATR
— Advanced Telecommunications Research Institute
FACS
— Facility Assignment and Control System
NML
— Network Management Layer
SIO
— Service Information Octet
DFT
— Draft Tax Forms
IPC
— Initial Paging Channel
UVG
— Universal Voice Grade
CNAD
— Calling Name Delivery
RCH
— Receive Channel
CS
— Connection Segment
FHMA
— Frequency Hopping Multiple Access
ISC
— International Switching Center
ONI
— Operator Number Identification
TI
— Time
QLLC
— Qualified Logical Link Control
USOC
— Universal Service Order Code (cable colors)
ECC
— Extended Community Calling
N-AMPS
— Narrowband Advanced Mobile Phone Service
UPS
— Un-interruptable Power Supply
AUSPI
— Association of Unified Telecom Service Providers of India
MOD
— Modulo
MFJ
— Modified Final Judgement
HCDS
— High Capacity Digital Services
SMG
— Super Master Group
VMO
— Virtual Mobile Operator
SARTS
— Switched Access Remote Test System
ITAD
— Integrated Telephone Answering Device
IOT
— Interoffice Trunk
NATA
— North American Telecommunications Allocation
ISSP
— Interim Interswitch Signaling Protocol
WISP
— Wireless Internet Service Provider
ML
— maximum length
PR
— Preference
SWAT
— Sit, Wait, and Talk
STMB
— Space-Time Multiple Beam
SNI
— Subscriber-Network Interface
SSTC
— Subsystem Status Test Control
CGT
— Consultants Group for Telecommunications
LAC
— Line Assignment Center
BSVCI
— Broadcast Signaling Virtual Channel Identifier
PTK
— Post and Telecom of Kosovo
CCO
— Component Coordinator
DCID
— Downstream Channel ID
TXD
— Transmit Data
MCPC
— Multiple Channels Per Carrier
PLM
— Product Line Manager
EXCL
— Exclusive
SE
— Southeast Euro
RPV
— Resource Property Value
NBDP
— Narrow Band Direct Printing
STU
— Signal Transmission Unit
EML
— Element Management Layer
VTQ
— Voice Transmission Quality
BTE
— Broadband Terminal Equipment
ISP
— International Signaling Point
AC
— Absorption Coefficient
LSAP
— Link Layer Service Access Point
LRN
— Local Routing Number
IN7
— Compaq SS7 stack
VVP
— Versatile Voice Processing
ITCC
— Information Technology and Communications Complex
TAE
— Terminal Adapter Equipment
DVI
— Digital Video Interleaved
MTBM
— Mean Time Between Maintenances
SAM
— Service Access Multiplexer
P
— Point
CASE
— Computer-Assisted Software Engineering
ZD
— Ziff-Davis
SLC
— Service Level Contract
TRAI
— Telecom Regulatory Authority of India
SS
— Switching System
FOTS
— Fiber Optical Transmission System
ILETS
— Idaho Law Enforcement Telecommunication System
CAIRO
— Communications Audio Interface for Remote Operations
BLP
— Burst Loss Probability
CODEC
— Coder-Decoder (usually for audio/video data)
WIPI
— Wireless Internet Platform for Interoperability
D4
— Digital channel bank, Fourth generation
DCA
— Distributed Communications Architecture
NMAS
— Network Management System
KTF
— Korea Telecom Freetel
DS
— Delivery System
SPCS
— Stored Program Control Switch
TSMA
— Telecommunications Services Master Agreement
FCCSET
— Federal Coordinating Committee for Science, Engineering and Technology
PTAM
— Professional Telephone Answering Machine
OLEC
— Other Local Exchange Carrier
MBAC
— Measurement-Based Admission Control
DS-4
— Digital Signal Level 4
VDV
— Voice/Data/Video
UOS
— Units of Service
MIC
— Management Integration Consortium
KB
— Knowledge-Based
BS
— Busy Season
TSGR
— Transport System Generic Requirements
LME
— Line Monitoring Equipment
CITR
— Canadian Institute for Telecommunications Research
UPC
— Usage Parameter Control
IPTD
— Internet Protocol Telephony Design
ALIS
— Access Lines in Service
IWU
— Interworking Unit
DDSD
— Delay Dial Start Dial
FCT
— Fixed Cellular Terminal
COB
— Change Of Billing
RA
— Requirements Analysis
UASL
— Unified Access Service License
IU
— Internal Use
LQO
— Line Quality Operation
BTMS
— BITEK Telecommunications Management System
TSR
— Terabit Switch/Router
PPCH
— Packet Paging Channel
CPT
— Cellular Paging Teleservice
RDTD
— Restricted Differential Time Delay
AI
— Airborne Interception
SS5
— Signalling System 5 (2400/2600 Hz tones)
IRAC
— Interdepartment Radio Advisory Committee
UBL
— Universal Bluetooth Link
DCCH
— Digital Control Channel
MFA
— Multi-Frame Alignment
MSO
— Marine Safety Office(r)
CDRM
— Cross-Domain Resource Manager
CQ
— Communications Quality
CCEA
— Cross Connect Equipment Assignment
CW
— Call Waiting Supplementary Service
ESMT
— Ecole Superieure Multinationale Des Telecommunications
PHIGS
— Programmer's Hierarchical Interactive Graphics System
SGS
— Software Generation System
JSR
— Jump to Subroutine
VOX
— Voice Exchange
MOC
— Ministry of Communications
TTIL
— Team Telecom International Ltd.
VPDN
— Virtual Private Dial-up Network
IRB
— Instruction Reorder Buffer
MTS
— Message Transmission Subsystem
WIRC
— Wireless Information Resource Center
IOS
— Internet Over Satellite
CVSD
— Continuous Variable Slope Detection
MVD
— Motion Vector Data
DCC
— Data Communications Channel
NFF
— Neutral File Format
HTO
— Hellenic Telecommunications Organisation
DUNCE
— Dial-Up Networking Connection Enhancement
ISDT
— Integrated Services Digital Terminal
TP
— Transaction Processor
L
— Lambert
WIX
— Wireless Information EXchange
TSD
— Type Specific Driver
SQE
— Signal Quality Error
QLC
— Quality Com
GEO
— Geostationary-Earth-Orbit
MMDX
— Multi-Media Data Services
IMPCS
— Indian Mobile Personal Communication System
TAP
— Test Access Path
APTC
— Atlantic Provinces Telecommunications Council
CT
— Control terminal
LCT
— Large Capacity Tandom
Q3
— Network Management Interface
CF
— Coin First Payphone
MAPP
— Mobile Access Personal Presence
ACVS
— Ameritech Customized Video Service
AMC
— Adds, Moves and Changes
UIH
— Unnumbered Information with Header check
GSMA
— Global System Mobile Association
CC
— Coordination Center
OC-96
— Optical Carrier Signal, Level 96
QOSOI
— Quality Of Service Over IP (Internet Protocol)
MMC
— Minimum Monthly Charge
AIOD
— Automatic Identification of Outward Dialing
OTF
— Optical Transfer Function
RFS
— Resource Facing Service
LATA
— Local Access Transport Area
RSL
— Request and Status Links
CARS
— Cable Antenna Relay Services
PWT
— Personal Wireless Telecommunication
APS
— American Protective Services
IOCA
— Interception of Communications Act
TCCMS
— Telecom Consumer Complaints Monitoring System (India)
LOH
— Line Overhead
YAC
— Yet Another Caller-ID program
CTS
— Call Tracking System
PSDS
— Packet Switched Data Service
STDM
— Statistical Time Division Multiplexer
E-TDMA
— Expanded Time Division Multiple Access
ULC
— Universal Line Card
QQS
— QOS (Quality Of Service) Query Service
TTG
— Test Tone Generator
DLCS
— Digital Loop Carrier System
UPCU
— Uplink Power Control Unit
GSN
— GPRS (General Packet Radio Service) Support Node
WOIP
— Wireless communications over Internet Protocol
DF
— Distributing Frame
IC-POT
— Interexchange Carrier-Point of Termination
CSI
— Clearing Subnetwork Identification
MEOS
— Medium Earth Orbit Satellite
S-HTTP
— Service Hypertext Transport Protocol
UMTS
— Universal Mobile Telecommunication Services
ECAN
— Echo Cancellation
SF
— Superframe
RDI-L
— Remote Defect Indicator - Loop
SAR-PDU
— Segmentation And Reassembly Protocol Data Unit
AMT
— Australasian Mobile Telecommunications
NARSAP
— National Advanced Remote Sensing Application Program
URC
— Utility Reference Customer
NATS
— North American Terrestrial System
CFS
— Customer Facing Services
RFIDAI
— Radio Frequency IDentification Association of India
MAC
— Message Authenticity Check
CASP
— Communications Application Service Provider
RCMS
— Recharge Card Management System
MIDP
— Mobile Information Device Protocol
VQA
— Voice Quality Analyzer
HIP
— Holes In Phonebooks
TELECOM
— Telecommunications
DI
— Document Index
STAN
— Supply of Telstra Account Number
TBRL
— Terminal Balance Return Loss
ABTA
— Associação Brasileira de Telecomunicações por Assinatura
AUBW
— AutoBot Walkthrough
MIS
— Miscellaneous
TLM
— Trouble Locating Manual
ISSIP
— Inter-Switching System Interface Protocol
MRVT
— MTP Routing Verification Test
CICT
— Commission on Information and Communications Technology
IMT
— International Mobile Telecommunications
ICCF
— Interexchange Carrier Compatibility Forum
SM
— Spectrum Management
AC
— Authorization Center
CSCC
— coordinated state change control
MDTS
— Mobile Data Terminal Software
MLMS
— Mobile Learning Management System
WAVE
— Wireless Access in Vehicular Environments
TME
— Telocator Message Entry
AMP
— amplifier / amplification
AOC
— ADSL (Asynchronous Digital Subscriber LIne) Overhead Control channel
HPPI
— High-Performance Parallel Interface
WACN
— Wide Area Communications Network
TBI
— Telecom Brokerage Inc
BEAR
— Billed Entity Applicant Reimbursement
MAHO
— Mobile Assisted Handoff
SQR
— Signal to Quantizing noise Ratio
WECA
— Wireless Ethernet Compatibility Alliance
ISM
— Interstellar Medium
ITU-TSS
— International Telecommunications Union - Telecommunications Standardization Sector
BRTL
— Blu-Ray Triple Layer
AVD
— Alternate Voice/Data
LMS
— Local Measured Service
TD-SCDMA
— Time-division Synchronous Code-division Multiple Access
USI
— User System Interface
RRJ
— Registration Reject
THL
— Trans-Hybrid Loss
PDE
— Positioning Determination Entity
DODD
— Department Of Defense Directive
TED
— Triteal Enterprise Desktop
STV
— Subscription Television
DBRN
— deciBel Relative to Noise
DMPB
— Digital Multi-Point Bridging
CLS
— Current Level of Service
GTXC
— Global Telephone Exchange Carrier
BANC
— Broadband Access Network Coordination
UIT
— Union Internationale des Telecommunications
WTIA
— Wireless Technology Industry Association
EV-DV
— EVolution Data/Voice
W-CDMA
— Wideband Code-Division Multiple-Access
PPT
— Permanent Part Time
SGW
— Server GateWay
ESP
— Essential Service Protection
SLICE
— Selective Line Insertion Communication Equipment
ECP
— Exchange Control Panel
SSS
— System/segment Specification
ROH
— Receiver Off-Hook
CPS
— Customer Premises System (Bellcore)
UCD
— Uniform Call Distributor
VM
— Voice Messaging
EVN
— Enterprise VoIP (Voice-over-IP) Network
DAMPS
— Digital Advanced Mobile Phone System
VOX
— Voice Operated Transmission
MC-SS
— Multi-Carrier Spread Spectrum
CDR
— Common Data Rate
CPC
— Crosstalk Prevention Coding
LET
— Line Equipment Transfer
NR
— normal
ACE
— Authentication Encryption
SCRB
— SBC (Single Board Computer) Control and Reset Box
HKT
— Hong Kong Telecommunications Ltd.
WCRL
— Wireless Communications Research Laboratory
MOA
— Managed Object Agent
CEPT
— Committee of European Postal & Telephone (authorities)
UCS
— Universityrsal Multiple-Octet Coded Character Set
MNP
— Microcomputer Networking Protocol
FCO
— Foreign Central Office
TSAR
— Terminating Switched Access Rate
H11
— High-capacity ISDN channel operating at 1.536 Mbps
MMDS
— Multichannel Multipoint Distribution System
VRS
— Video Relay Service
LOP-V
— Loss Of Pointer - Virtual
SVGA
— Super VGA
MED
— Manipulative Electronic Deception
WTA
— Wireless Telephony Application
WSN
— Wireless Sensor Network
NSM
— Network Status Monitor
CIL
— Call Identification Line
GATE
— GPRS (General Packet Radio Service) Application Test Environment
SMRP
— Simple Multicast Routing Protocol
F
— Flow
DPCM
— Differential Pulse Code Modulator
CID
— Cell IDentification number
AAC
— Alternate Area Code
TRK
— Trunk
IOPS
— Internet Operators Providers Services
MES
— Master Earth Station
VTAC
— Vermont Telecom Advancement Center
AWCC
— Afghan Wireless Communications Company
PN
— Public Network
BNT
— Broadband Networking Technology
DUC
— Designated Underlying Carrier
WPOP
— Wireless Point-of-Presence
CPS
— Carrier Pre-Selection Service
VRT
— Voltage Reduction Technology
MTIE
— Maximum Time Interval Error
DVC
— Digital Video Compression
TIMS
— Transmission Impairment Measuring Set
KSR
— Key Send Receive
OM
— operations management
ACA
— Automatic Circuit Assurance
IQ
— In-phase and Quadrature
BUC
— Block Up-Converter
OC-1
— Optical Carrier Signal, Level 1
LAPM
— Link Access Protocol for Modems
CIS
— Communications and Information Systems
RLF
— Remote Line Failure
WAL
— WATS (Wide Area Telecommunications Service) Access Line
SRTS
— Synchronous Residual Time Stamp
RXD
— Receive Data
DNR
— Dial Number Recorder
ASC
— Available Spare Capacity
CR
— Call Reference
UDLC
— Universal Digital Loop Carrier
FFM
— First Failure to Match
ACL
— Average Call Length
SUF
— Service Update Facility
MM
— Multimode (fiber optic cable)
T
— Tip
HFT
— Human Factors in Telecommunications
SS3
— Signalling System 3 (2280 Hz tone)
WIG
— Wireless Internet Gateway
PSX
— Power System Exchange
UTP
— Universal Transmission Protocol
TMF
— Telemanagement Forum
STE
— Software Test Environment
WNAS
— Wireless Network Access Services
VOF
— Voice Over Fiber
SMSL
— Standard Multimedia Scripting Language
SNAP
— Sub-Network Access Protocol
ADTS-E
— Ameritech Digital Transport Service - Enhanced
BRQ
— Bandwidth Request
MMMS
— Mobile Multimedia Messaging Service
HCT
— Hierarchical Cellular Tree
TDB
— Technology Development Board
TR
— Temporal Reference
PTFP
— Public Telecommunications Facilities Program
TAAC
— Telecommunications Access Advisory Committee
SRS
— Supported Residential Services
CAS
— channel associated signaling
RCDD
— Registered Communications Distribution Designer
S&F
— Store & Forward
CCIR
— Comittee Consultatif International Radiotelecommunique
MVDM
— Multiple Virtual DOS Machine
BU
— Back Up
SCU
— Service Creation Unit
LCA
— Line Circuit Address
LAP-B
— Link Access Protocol-Balanced
NSPE
— National Society of Professional Engineers
WCA
— Wireless Cable Association International
TELCO
— Telecommunication Network for Cooperative Driving
LOF
— Loss of Frame (ATM)
AA
— Agile Access
URR
— UHF (Ultra-High Frequency) Radio Receiver
PCMCIA
— Personal Computer Memory Card Industry Association
C
— Clock
TFO
— Tandem Free Operation
STEREO
— Solar Terrestrial Relations Observatory
VASP
— Value-Added Service Provider
CCS
— Centa- (hundred) Call Seconds
BAC
— Bar Calls
UPR
— User Performance Requirement
IPCU
— iPhone Configuration Utility
FEFA
— Far End Failure
CCTA
— Cctacentral Computer And Telecommunications Agency
TADS
— Target Acquisition Designation Sight
CSUR
— Conscript Unicode Registry
CI
— Customer Installation
CBS
— Common Battery Signaling
CNT
— Corporacion Nacional de Telecomunicaciones
AT
— Access Terminal
CO
— Central Operations
SVC
— Single Voice Coil
SPH
— Samsung PHone
IO
— Inter-Office
DNI
— Did Not Include
ACR
— Anonymous Call Rejection
PTO
— Public Telephone Operator
DLI
— Dialed Line Identification
LQN
— Line Quality Network
CN
— Calling Number
WDF
— Wireless Data Forum
RCV
— ReCharge Voucher
DSP
— Domain Specific Part
CSA
— Central Service Area
WNSK
— Wireless Networking Starter Kit
NBS
— New British Standard
MAP
— Mobile Applications Port
LPU
— Line Protection Unit
DP
— Drop Point
WPOS
— Wideband Packet over SONET (Synchronous Optical NETwork)
WIWT
— Wireless Internet of West Tennessee
CCBS
— Completion of Call to Busy Subscriber
LAP
— Link Access Protocol
IWCS
— Integrated Wideband Communications System
WOS
— Wireless Optimization Service
STS
— Synchronous Transfer Signal
BT
— Busy Tone
ENST
— Ecole Nationale Supérieure des Télécommunications
DSVT
— Digital, Secure Voice Telephone
FECC
— Federal Emergency Communications Coordinator
AA
— Automatic Answer
SLM
— Subscriber Loop Multiplex
OC-48
— Optical Carrier Signal, Level 48
UBC
— Utility Based Computing
TSAP
— Telecommunication Systems Analysis Position
FECC-I
— Forward Error Correction Count - Interleaved data
DMI
— Digital Multiplex Interface
WCB
— Wireline Competition Bureau (FCC)
IMMAT
— Instituto Municipal Malvinas Argentinas Telecomunicaciones
WTN
— Working Telephone Number
WTK
— Wireless Toolkit
TRAN
— Transient
SCSA
— Standard Consolidated Statistical Area
M-M
— Multiplex-Multicast
SCAT
— Single Channel Autonomous Trunking
PICS
— Protocol Implementation Conformance Statement
SPNI
— Service Provider Network Identifier
AA
— Audit Agent
HDT
— Host Digital Terminal
DMF
— Distributed Messaging Fabric
DQR
— Directory enQuiry Restricted
WID
— Wireless Information Device
DX
— Duplex Signaling
SQM
— Signal Quality Manager
TOT
— Time Of Transmission
STP
— Shielded Twisted Pairs
TSAU
— Time Slot Access Unit
CLECS
— Competitive Local Exchange Carriers
IS
— Integrated Services
CDO
— Community Dial Office
ITSO
— International Telecommunications Satellite Organization
VQT
— Voice Quality Testing
BISDN
— Broadband Integrated Services Digital Network
BCM
— Bit Compression Multiplexer
WTR
— Wireless Token Ring
WSL
— Wireless Systems Laboratory
TCIYP
— Turks and Caicos Islands Yellow Pages
REGEN
— Regenerator
WBA
— Wireless Broadband Access
AMEL
— Active-matrix Electroluminescent
TI
— Time Integration
T&R
— Tip and Ring
WIAS
— Wholesale Internet Access Services
LETS
— Line Efficiency Tracking System
CTIE
— Centre for Telecommunications and Information Engineering (Monash University; Australia)
MFN
— Multiple Frequency Network
SHN
— Self-Healing Network
EMLPP
— Enhanced Multi-Level Precedence and Priority
MSSC
— Mobile Satellite Switching Centre
SIU
— Subscriber Interface Unit
LBA
— Location-Based Advertising
SM
— Statistical Multiplexing
ECSA
— Exchange Carrier Standards Association
RSI
— Record Status Indicator
VMB
— Voice Mail Box
WAPF
— Wireless Application Protocol Forum
COIC
— Central Office Interface Circuit
DLS
— Dual Line Signalling
CDF
— Communications Data Field
RPE-LPC
— Regular Pulse Excited - Linear Predictive Coder
ACS
— Accelerated Change Service
DCH
— Discrete CHannel
HIC
— Head-End Interface Converter
UBT
— Universal Backend Tester
MUF
— Maximum Useable Frequency
ITF
— Information Transport Function
BTS
— Business Telecommunications Services
DCN
— Disconnected and Changed Numbers
RNW
— Radio NetWork
NSP
— National Signaling Point
SWANSAT
— Super-Wide Area Network SATellite
IESS
— INTELSAT Earth Station Standard
HSUPA
— High-Speed Uplink Packet Access
LMC
— Loop Maintenance Center
ITV
— Instructional Telecommunications And Video
ATLAS
— Accessing Telecoms Links Across Scotland
WDA
— Wireless Developer Agency
BIT
— Bureau of Information and Telecommunications
WAGN
— West Antarctic GPS (Global Positioning System) Network
RDI-V
— Remote Defect Indicator - Virtual
ZPD
— Zero-Plus Dialing
RTZ
— Rate for Transmission service for a Zone load
OC-3
— Optical Carrier Signal, Level 3
PTN
— Portable Telephone Network
WFM
— Wireless Frequency Modulation
DVCC
— Digital Verification Color Code
WND
— Wireless Network Design
TIMS
— Transmission Impairment Measurement System
MHL
— Mobile High-definition Link
TEO
— Telephone Equipment Order
LTP
— Long Term Prediction
WRU
— Wireless Receiver Unit
GSA
— Guarded Single Assignment
ARAI
— Adjunct Route Application Interface
CMM
— Calls, Minimums, Maximums
IVI
— Intel Video Interactive
FICORA
— Finnish Communications Regulatory Authority
PRCS
— Philips Radio Communications Systems
SCC
— Signal Conversion Circuit
STE
— Syrian Telecommunications Establishment
IWE
— Institute for Wireless Education
WNC
— Wireless Network Communications
DS-2
— Digital Stream 2 (6.312 mbps)
ATM
— Automated Transmissions Machine
VOI
— Voice Over Internet
BASH
— Bandwidth Sharing
VSM
— Voice Service Module
OTM
— Object Transaction Manager
ITEC
— Internet Telecom and Electronic Commerce
UBI
— Usage Billing Information
MERS
— Most Economical Route Selection
TSIP
— Telecommunications System Installation Plan
ITOC
— Independent Telephone Operating Company
CAS
— Customer Accounts Service
SHM
— Short-Haul Modem
STDM
— Statistical Time Division Multiplexing
COCOT
— Customer Owned Coin Operated Telephone
FOTP
— Fiber Optic Test Procedures
ECITTC
— European Committee for Information Technology Testing and Certification
TNS
— Time to Next Send
TSSI
— Telecom Switched Services Interoperability
IOCDS
— Input/Output Configuration Data Set
UPC
— Universal Personal Communication
IMN
— Intelligent Mobile Network
APOT
— Access Point Of Termination
DTF
— Dial Tone First
ESSE
— Embedded Systems Software Environment
WIDS
— Wireless Intrusion Detection Sensor
TVR
— Telephone Voice Response
CMS
— Circuit Multiplication System
CMP
— Connection Management Procedures
ETT
— Emona Telecoms Trainer
VF0
— Voice Fundamental Frequency
CCSD
— Cellular Circuit Switched Data
GTB
— Global Telecoms Business
ECR
— Enhanced Call Routing
SWF
— SWitched Fractional
A
— All lines
MJT
— Modular Jack Terminal
STP
— Shielded Twisted-Pair
MBCM
— Multiple Block-Coded Modulation
IVW
— InfoView Wireless
DS-1C
— Digital Stream 1C (3.152 mbps)
AIOD
— Automatic Identification of Outward Dialed calls
SRVT
— SCCP Routing Verification Test
UMS
— Unified Messaging Service
WITS
— Washington Interagency Telecommunications System
SUBT
— Subscriber Terminal
CMP
— Communications Module Processor
HTU-R
— HDSL (High-bit-rate Digital Subscriber Line) Transmission Unit - Remote
CS
— Customer Specification
HSC
— High Speed Connect
ZUD
— Zero Unscheduled Downtime
MDU
— Monthly Domestic Usage
MID
— Maritime Identification Digits
LLAR
— Local Loop Access Ring
DLIS
— Directory Listing Inquiry System
BBCR
— BroadBand Communications Research
D
— Diagonal
EDGE
— Enhanced Data for GSM Evolution
WAVE
— Wide Area Voice Exchange
DPO
— Dial Pulse Originate
EFRC
— Enhanced Full Rate Codec
WMA
— Wireless Messaging API (Application Programming Interface)
EA
— Emergency Action (JOC)
RDI-P
— Remote Defect Indicator - Path
IS-41
— TIA/EIA Interim Standard for mobile management
WACS
— Wireless Access Communications System
DMTF
— Desktop Management Task Force
CHE
— Central Head-End
ONE
— Other Network Entity
LOSW
— Loss Of Synchronous Word
MSID
— Mobile Station Identity
WLS
— Wireless Location Services
CTNS
— Certified Telecommunications Network Specialist
BWRC
— Berkeley Wireless Research Center
MCD
— Community Care Access Centre
CTN
— Corporate Telecommunication Networks
WSF
— Workstation Function
COMS
— Cambridge Open Mobile System
TEDP
— Telecommunication Equipment Distribution Program
ICR
— Intelligent Call Routing
BIPT
— Belgian Institute for Post and Telecommunications
ESL
— Educational Sales Ledger
ANCD
— Automatic Network Call Distrubution
IDC
— Information Distribution Company
EPI
— External Provisioning Interface
TSS
— Telecommunication Standards Sector
HTU
— HDSL (High-bit-rate Digital Subscriber Line) Transmission Unit
OTH-B
— Over-the-Horizon Backscatter
TEM
— Telecom Expense Management
RFI
— Remote File Inquiry
MCF
— Message Confirmation Frame
BLERT
— Block Error Rate Test
DLOL
— Digital Loss Of Link
VVD
— Voice and Video Data
OMNCS
— Office of the Manager, National Communications System
MFAS
— Multi-Frame Alignment Signal
RTNR
— Real-Time Network Routing
YBY
— Why Be Yellow
IVAD
— Integrated Voice and Data
CCF
— Custom Calling Feature
LGS
— Loop- or Ground-start Subscriber
CELL
— Caller Enabled Leased Line
IMTC
— International Multimedia Telecommunication Consortium
EOT
— Eastern Oregon Telecom
AOS
— Alternative Operator Services
VDT
— Video Dial Tone
JYP
— Jamaican Yellow Pages
C-M
— Control-Monitor
WICS
— Wireless Integrated Communication System
DSX-2
— Digital Stream Crossconnect 2 (6.312 Mbps)
OE
— Originating Equipment
QIC
— Quality Improvement Council
OCTS
— Ocean Color and Temperature Scanner
RFA
— Recurrent Fault Analysis
FELB
— Far-End Loop Back
LUL
— Land Use Line
ESG
— Error Satellite Gauge
QNS
— Questar Network Services
SEE
— Software Engineering Environments
SSP
— Service Switching Point
ILQ
— Inbound Link Quality
LCN
— Local Channel Number
MOE
— Modem Operating Environment
DA
— decanoic acid
WSNN
— Wireless Sensor Network News
RTAP
— Real-Time Application Platform
B911
— Basic 911 Emergency Service
DSS
— Digital Switching Subsystem
FERF
— Far-End Receive Failure
CTSO
— Cellular Telephone Service Order
WIPA
— Walkup Internet Port Authentication
WTDM
— Wideband Time Division Multiplexing
JICC
— Justice International Calling Card
LAP-D
— Link Access Protocol-D channel
WITS
— Web Interface for Telescience
TINA
— Telecommunications Information Networking Architecture
ATP
— Association of Telecom Professionals
WTNG
— World Telephone Numbering Guide
SDK
— Service Development Kit
MTS
— message transport system
WORP
— Wireless Outdoor Router Protocol
ECTEL
— Eastern Caribbean TELecommunications Authority
DDCNZ
— Daily Demand Charge for Non-Zone Network Load
CEP
— Communication End Point
WNM
— Wireless Network Management
WXE
— Wireless Exchange Engine
NTSA
— Networking Technical Support Alliance
T1
— Transmission service at the DS1 rate of 1.544 Mbps
TMN
— Telecommunications Management Network
DDCZ
— Daily Demand Charge for a Zone
NIMA
— National Imagery Mapping Agency
SINAP
— Signalling and Intelligent Network Applications Platform
MBA
— Masters in Business Administration
WTNP
— Wireless Telephone Number Portability
DHA
— Dialogue Handling
MEO
— Middle-Earth-Orbit
RSU
— Remote Switching Unit
ENFIA
— Exchange Network Facilities for Interstate Access
INSAT
— India's Indian National Satellite
M
— Maintenance (Job Status)
UTFX
— Unit Testing Framework - XSLT (Extensible Stylesheet Language Transformation)
QSK
— Quadrature Shift Keying
MVPRP
— Multivendor Problem Resolution Process
DLC
— Digital Line Controller
ETC
— Enhanced Telecommunications Corporation
TBPS
— terabit per second
DEN
— Directory Enabled Networks
VRC
— Virtual Redundancy Check
LADT
— Local Area Data Transport
CMI
— Computer Managed Instituteuction
HTU-C
— HDSL (High-bit-rate Digital Subscriber Line) Transmission Unit - Central office
WWA
— Wireless Web Application
RTDC
— Regional Telecommunication Development Conference
TTTN
— Tandem Tie Trunk Network
CHM
— Changeover and Changeback Messages
ADTN
— Agency Data Telecommunications Network
CRACK
— Challenge Response for Authenticated Crypto Keys
PNA
— Parallel Network Architecture
ASR
— Automatic Set Relocation
DS-4
— Digital Stream 4 (274.016 mbps)
ESMR
— Enhanced Specialized Mobile Radiotelephony
CD
— Carrier Detect
LVC
— Label Virtual Circuit
TU
— Total Usage
SSCOP
— Service Specific Connection Oriented Protocol (ATM)
CS
— Communications Satellite
CTE
— Computer Telephony Engine
IDM
— Interim Data Modem
CS
— Clear to Send
ETET
— Electrical and Telecommunications Engineering Technology
DSRF
— Device Savings Recovery Fee
TANE
— Telephone Association of New England
WTF
— Wireless Telecommunications Facility
FCA
— Fixed Channel Assignment
LL
— Lower Layer
MGW
— Mobile GateWay
TRNA
— Temporarily Restricted Net Asset
HFK
— Hands Free Kit
DIP
— Dialup Internet Protocol
CSF
— Common Service Framework
WTRP
— Wireless Token Ring Protocol
ERA
— Enhanced Remote Access
SLTE
— Signaling Link Termination Equipment
SSS
— Subscriber Switching Subsystem
LAP-D
— Link Access Procedure- Digital channel
RWI
— Real Wireless Intelligence
WDCS
— Wireless Distributed Communication System
WLRL
— Wireless LAN (Local Area Network) Research Laboratory
TCCL
— Terminating Carrier Command Line
SDB
— Switched Digital Broadcast
TAMS
— Telecom Analysis and Management System
TWC
— The Weather Channel(r)
WUPE
— Wireless User Premises Equipment
ACG
— Automatic Code Gapping
DCD
— Data Carrier Detect
SKT
— Sun Kyung Telecom
WTB
— Wanted to buy
TWSS
— Telecom Web Services Server
ILRM
— Interim Local Management Interface
TTGS
— Test Tone Generator Software
OTA
— Over-the-Air Activation
ADSRF
— Additional Device Savings Recovery Fee
COSMIC
— common systems main interconnecting
DSS
— Digital Subscriber Signalling
SPN
— Service Panel Number
ADU
— Accumulation and Distribution Unit
IRTC
— Illinois Rural TeleCommunication
BR
— Basic Rate
LSOA
— Local Service Order Administration
JTU
— Japan Telephone Upgrade
ATSC
— Australian Telecommunications Standardization Committee
STE
— Signaling Terminal Equipment
ITTP
— Information Technology And Telecommunications Policy
ISD
— Instructional Systems Designers
INPT
— Institut National des Postes et Télécommunications
SDN
— Software-Defined Network
JTRS
— Joint Tactical Radio Systems
DAP
— Demand Access Protocol
OC-24
— Optical Carrier Signal, Level 24
UPPC
— Up-Path Power Control
MEAS
— Measurement Specialties, Inc.
LWT
— Listen While Talk
VRSP
— Voltage, Ringing Signal Positive
ASE
— Accredited Systems Engineer
WVI
— Wireless Vehicle Interface
OC-36
— Optical Carrier Signal, Level 36
R
— Rimorchio (trailer)
CSL
— Communication Services Limited
ITSP
— Internet Telephone Service Provider
OMP
— Operations and Management Platform
TSAPI
— Telephony Services Application Programming Interface
IVDT
— Integrated Voice/Data Terminal
WLS
— Wait Listing Service
DIAG
— Diagnostics
ICS
— Intelligent Calling System ID Identification
ADLI
— Automatic Dial Line Identification
DWB
— Designer's Workbench
TAPS
— TELEPHONE APPLICATION PROCESSING SYSTEM
USLD
— United States Long Distance
WUF
— Wireless University Forum
CSS
— Customer Service System
T3
— Transmission service at the DS3 rate of 44.736 Mbps
SPA
— Service Planning Area
WIVA
— Wireless Integrated Voice Access
LLI
— Logical Link Identifier
MDCNZ
— Monthly Demand Charge for Non-Zone network Load
WNQS
— Wireless Network Quality Specification
CPP
— Calling Party Pays
DUITS
— Digital, Ubiquitous, Interoperable, Transparent and Secure
BT
— Bluetooth Two
BT
— British Telecom…
WIOP
— Wireless Inter-ORB (Object Request Broker) Protocol
AT
— ATtention command
SAA
— Service Adaptive Access
ROF
— Reformat on the Fly
HOPA
— Higher-Order Path Adaptation
ELL
— Ethernet Leased Line
NSK
— Nonstop Kernel
ECG
— English Cell Group
DMS
— Digital Multiplex Switch
MFR
— Multi-link Frame Relay
ISM
— Instrumentation Scientific and Medical
DF
— Data Frame
X25
— A Packet Switching Protocol
SM-SC
— Short Message Service Center
FCAPS
— Fault, Configuration, Accounts, Performance, Security
NB
— Narrowband
ESVN
— Executive Secure Voice Network
URM
— Uniform Redial Model
RAMA
— Resource Auction Multiple Access
PSU
— Packet Switching Unit
RU
— Remote Unit
MNET
— Minnesota's Network for Enterprise Telecommunications
CSL
— Create a Simple Life
CTN
— Community Telecommunications Network
APS
— Affordable Portable Services
TOM
— Telecom Operations Map
DD
— Digit Directory
RWF
— Roaming Wireless Framework
CTS
— Cordless Telephone System
SMDS
— Satellite Multimedia Delivery System
STA
— State Transport Authority
XDSL
— "generic" Digital Subscriber Line
OOR
— Operator Override
CID
— Call Instance Data
ICAL
— Interexchange Carrier Access Line
KTA
— Kentucky Telecom Association
RBES
— Rule-Based Expert Systems
VMIC
— VME Microsystems International Corporation
SCC
— System Control Center
CWC
— Center Weight Control
TPE
— Telephony Platform Engine
VDS
— Variable Department Sonar
ROPP
— Receiver Only Packet Pair
ACC
— Automatic Carrier Control
AIP
— Administrative Installation Point
CK
— Check Bit
SYNTRAN
— Synchronous Transmission
RTSE
— Remote Transfer Service Element
WEXK
— Wireless EXit Kit
NTON
— National Transparent Optical Network
UTL
— United Telecom Limited
AS56
— Access System Centum 56 series
TIBS
— Tactical Information Broadcast Service
NSSG
— Network Solutions and Service Group
ITU-T
— International Telecommunication Union-Telecommunications
RIC
— Radiocommunications Information Circular
OC
— Output Controller
NAB
— National Association Of Broadcasters
PIN
— Positive-Intrinsic-Negative
WISI
— Wireless Integrated Strike Interface
CFU
— Call Forward Unconditionally
BLERT
— BLock Error Rate Tester
WDDM
— Wavelength-Division Demultiplexing
NOLM
— Nonlinear Optical Loop Mirror
FSM
— Field Service Manager
ADU
— Analog-to-Digital Unit
MM
— mismatch
AMSI
— Ameritech Message Signal Interface
T3
— 44.736 Mbits per Second line
SYNC
— Synchronous
TVL
— Telecoms Virtual Library
FO
— Fiber-Optic
SU
— super-user
ICC
— Interexchange Carrier Charge
DSX-3
— Digital Stream Crossconnect 3 (44.736 Mbps)
CERN
— Centre Europйen de Recherche Nuclйaire
QCIF
— Quarter Common Image Format
PCTF
— Per-Call Test Failure
CAPS
— Common ISDN API Service
E&M
— Earth and Magneto (signaling leads)
WL
— Wire Line
IR
— Information Rate
LDDS
— Limited Distance Data Service
SLS
— Sidelobe Suppression
CSP
— Callback Service Provider
CFA
— Carrier Failure Alarm
KLM
— Keyboard Layout Management
SPCS
— Stored Program Control System
TSB
— Telecommunications Systems Bulletin
RACE
— Research for Advanced Communications in Europe
ARE
— All Routes Explorer
BEP
— Back-End Processor
TXE
— Transmitter Empty
EICS
— EURESCOM Information and Communications Services
RWN
— Regional Wireless Networks
VT
— Virtual Tributary signal
DS-1
— Digital Stream 1 (1.544 mbps)
AM
— Advance Mobile
AGRAS
— Air-Ground Radiotelephone Automated Service
ANP
— Autonomous Network Planning
BETAG
— Beginning-End Tag
NCP
— Network Control Point
AC
— Always Connected
CDM
— Code Division Multiplexing
HOMEPNA
— Home Phoneline Networking Alliance [also HomePNA2]
IWW
— Internet World Wireless conference
PTCM
— Pragmatic Trellis-Coded Modulation
CASE
— Common Application Service Elements
L4
— Layer 4
UMATS
— University of Maryland Academic Telecommunication System
DTIS
— Department of Telecommunications and Information Services
RYC
— Returned Your Call
WTPF
— World Telecommunication Policy Forum
AZDL
— Adjusted Zonal Daily Load
ALIT
— Automatic Line Insulation Test
GT&T
— Guyana Telephone and Telegraph Company
LAPD
— Link Access Procedure D channel
WWAT
— Wireless Wide Area Telemetry
TEM
— Telecommunications Expense Management
RTP
— Research Triangle Park
TVL
— TELECOM VANUATU LIMITED
PNVS
— Pilot Night Vision Sensor
VRSP
— Video Relay Service Provider
TLS
— Telephone Line Simulator
SLC
— Subscriber Loop Carrier
CC
— Connection Confirm
SPC
— Service Provider Code
DRS
— Dial Return System
DMB
— Digital Multimedia Broadcasting
GLD
— German Long Distance
PTP
— Personal Telco Project
KEY
— Keyset (multiline phone)
D/U
— Delay Unit
NCOSE
— National Council on Systems Engineering
PAD
— Packet Assembler-Disassemble
MTS
— Message Telecommunications Service
LQE
— Line Quality Engineering
DCN
— Data Communications Network
TGPSI
— Transmission Gap Pattern Sequence Identifier
UCS
— Unified Communication Service
VSR
— Viking Single-line loud Ringer
MDC
— Monthly Demand Charge
ESFDL
— Extended Super Frame Data-Link
DC
— Dry Circuit
RAPID
— Remote Access Protocol Interface Device
VQR
— Voice Quality Rating
ISUP
— ISDN Service User Part
TELEX
— Teleprinter Exchange
RRO
— Regulated Rate Option
WDL
— Wireless Device License
PRAM
— Parameter RAM
MIS
— Mobile Information Service
UNICODE
— UNIversal trunk - out-of-service CODE
ASR
— Automatic Send-Receive
O
— Optical
HLB
— Hierarchical Line Balancing
TLX
— TELEX (TELegraph EXchange)
DNMS
— Dual Network Media Server
FA
— Failed Answer
SWN
— Statewide Wireless Network
SC
— Standards Committee
JIS
— Jurisdictional Interstate Service
TSP
— Telecom Service Provider
GTTI
— Global Telecommunication Training Institute
BLT
— Bottom Line Telecommunications
SAC
— Syntax-based Arithmetic Coding
ECHI
— External Call History Interface
WNVA
— wireless Network Vicinity Assessment
DCCX
— Direct Circuit Control Exchange
BDS
— Bundled Digital Services
C/R
— Control/Response indication bit
PVRA
— Physical Volume Reserved Area
ACIS
— Andy Charles Ians System solid modelling geometric engine
ET
— Emerging Technologies
XNS
— Xerox Network System
WACR
— Wide Area Call Reception
AC
— Armored Cable (electricity)
EB
— Expanded Basic
WMTS
— Wireless Medical Telemetry Service
TOSL
— Telecommunications Ombudsman Service Limited
RDY/BSY
— Ready/Busy
RATS
— Radio-Amateur Telecommunications Society
WTPF 3
— World Telecommunication Policy Forum 3
TBR
— Tagged Bit Rate
WAP
— Wireless Access Provider
UCP
— Universal Communications Platform
VWO
— Virtual Wire Operations
VCC
— VSAT (Very-Small-Aperture Terminal) Control Center
RANN
— Recorder ANNouncer
SS#7
— Signaling System # 7
WWVC
— WorldWide VideoConferencing
VAC
— Voice Activity Compression
RITS
— Residential Information Technology Services
TTAC
— Telecommunication Technology Advisory Committee
RI
— Ring In
ITW
— International Telecoms Week
OC-192
— Optical Carrier Signal, Level 192
PCL
— Product Computing Module Load(s)
WEPD
— Weighted Early Packet Discard
WWTW
— World Wide Telecom Web
RTRP
— Regional Telecommunications Restructuring Project
MEAS
— Measured Extended Area Service
IRMA
— Interactive Remote Messaging Application
GTSS
— Global Telecom Solutions Sector
MJU
— Modular Jack Unit
EQ
— Equal To
ITU-R
— International Telecommunication Union-Radiocommunications
LEO
— Low-Earth-Orbit
ACD
— Apex Collaborative Dialing
COPS
— Caring Operators Personal Service
HPNA
— Home Phoneline Network Adapter
BASH-R
— BAndwidth SHaring with Resource constraints
CFO
— Core Funded Organization
BCP
— Before Cell Phones
WTS
— Wireless Telecommunication Services
BSM
— Broadband Satellite Multimedia
SCS
— Signal Collection System
TMOD
— Telecommunications and Mission Operations Directorate
RES
— Resident
FOB
— Forward on Busy
VRSM
— Voltage, Ringing Signal Modified (inverted)
IDDD
— International Direct Distance Dialing
WCM
— Wireless Connection Manager
CMRS
— Commercial Mobile Radio Services
SRP
— Spatial Reuse Protocol
ISBX
— Internet Satellite Broadcast Exchange
DCT
— Digital Cordless Telecommunications
IAST
— Industry Access Service Tariff
LDL
— Long Distance Link
EVRC
— Enhanced Variable Rate CODEC (CODer-DECoder)
CNA
— Cell Not Available
TDP
— Tag Distribution Protocol
MAP
— Management Assessment Program
MND
— Multi-Number Dialer
ALS
— Alternative Line Service
DNA
— Daytime Nighttime Anytime
ITNL
— Indusind Telecom Network Ltd
AL
— Alignment Level
GETS
— The Government Emergency Telecommunications Service
WISE
— Wireless Infrastructure Simulation Environment
BRITE
— Basic Rate Interface Transmission Extension
THT
— Total Handling Time
AHT
— Average Holding Time
MMF
— Microsoft Mail File
VPLS
— Virtual Private LAN (Local Area Network) Service
LOP-L
— Loss Of Pointer - Line
WTCP
— Wireless Transport Control Protocol
UMTS
— Universal Mobile Telecom Surfwax
CF
— Coin First
WUA
— Wireless USB (Universal Serial Bus) Adapter
WBE
— Wireless Business Engine
SRU
— Single Receiver Unit
CSM
— Communications Services Management
SRB
— Software Release Bulletin
IPOD
— Internet Phone Over Data
WLAR
— Wireless LAN (Local Area Network) Access Repeater
MOM
— Mainboard Operation Monitor
PTA
— Pre-Transmission Audit
EMS
— Element Management Service
PAL
— Phase Alternating by Line
WCS
— Wireless Communications Service
BYOP
— Bring Your Own Portal
ITS
— Institute for Telecommunication Sciences
APTG
— Amplifier Probe and Tone Generator Kit
SS2
— Signalling System 2 (600/750 Hz tones)
UNL
— Unlisted
LDC
— Long Distance Carrier
XA-SMDS
— Exchange Access Switched Multi-Megabit Data Service
UI
— Unnumbered Information (frame)
DA
— Dodecanedioic Acid
TELCO
— Telecommunications Company
OC-12
— Optical Carrier Signal, Level 12
DUNC
— Dial-Up Networking Connection
ISC
— Information Systems Council
LSP
— Local Support Provider
WAP
— Web Access Phone
WN
— Wireless Network
NN
— node number
RZ
— Receive ZModem
THAAD
— Theater High Altitude Area Defense
DV
— Data and Voice
SVC
— Signaling Virtual Channel
TL
— Telephone Lead
MCFI
— Multiple number Call Forwarding Inhibit
VMW
— Vertically Modulated Well
CTWU
— Chunghwa Telecom Workers' Union
ACF
— Admission Confirm
CTI
— Computer Telephone Integration
TCM
— Tandem Connection Maintenance
CTUF
— Cape Telecommunications Users Forum
TL1
— Transaction Language One
MFT
— Metallic Facilities Terminal
IA5
— International Alpha Set No. 5
HSOPA
— High-Speed OFDM (Orthogonal Frequency Division Multiplexing) Packet Access
WIT
— Wireless Image Transfer
TDR
— Transaction Data Reports
NE
— Network Entity
WNPO
— Wireless Number Portability Operations subcommittee
MLC
— Multiple Level Cell
ISD
— Independent Segment Decoding
NEBS
— New Equipment Building Specifications
SS7
— Signalling System 7
VTE
— Virtual Test Environment
VCE
— Voice Clarity Enhancement
TMT
— Technology, Media, and Telecommunications
RTX
— Real Telephone eXchange
FWT
— Fixed Wireless Terminal
FFC
— Front-Facing Camera
WHM
— Wireless Host Module
WCTG
— Wireless Communications Technologies Group
WRRK
— Wireless Router and Repeater Kit
GAT
— GSM, AMPS, and TDMA
RWL
— RF (Radio Frequency) / Wireless Laboratory
VON
— Voice Over Network
TIF
— Telecommunications Infrastructure Fund
RR
— Receiver Ready
WTDC 2003
— World Telecom Development Conference 2003
RI
— Ring Interface
CNA
— Certified Novell Administrator
RPS
— Reference Picture Selection
WICD
— Wireless Interface Connection Daemon
TESP
— Telecommunications Enterprise Strategic Program
BC
— Burst copy
CRA
— Constant Rate Allocation
WNP
— Wireless Number Portability
WACM
— Wide Area Communications Management
P
— Planning
SFS
— Start of Frame Sequence
GDS
— Generic Digital Services
TELECOMMUTE
— Telecommuters
TCA
— Telecom Computing Architecture
CD
— Channel Delay
PSN
— Personal Subscription Number
RII
— Routing Information Indicator bit
SIT
— Special Information Tone
SN
— Station Number
EMX
— Earth and Magneto Signaling
UARS
— Upper Atmospheric Research Satellite
IDR
— Installer Design Required
GTA
— GEORGIA TELECOMMUNICATIONS ASSOCIATION
TLC
— Text Link Cellular
STPI
— Stentor Telecom Policy, Inc.
RB
— Randomized Block
UG
— User's Group
CPI
— Computer-PBX Interface
ERM
— Explicit Rate Marketing
WLN
— WireLess Networking
VSP
— VoIP Service Partner
BC
— Committed Burst Size
H0
— High-capacity ISDN channel operating at 384 kbps
THP
— Terminal Handler Process
WWOM
— Wireless Work Order Management
ATZ
— Attention: Reset modem
MFRM
— Multi-carrier Flexible Radio Module
DCPNZ
— Daily transmission Charge for Peak Non-Zone network load
DFA
— Distribution Feeder Antenna
UGC
— UnderGround Communications
CF
— Call Forward
IUC
— Interconnect Usage Charge
SWAN
— Structured Wireless Aware Network
RHE
— Regional Head-End
WON
— Wireless Optical Network
FCOT
— Fiber Central Office Terminal
CSP
— Custom SIM Profile
ICE
— Information Content Exchange
UNE-P
— Unbundled Network Element - Platform
E-911
— Enhanced emergency telephone number
ET
— Exchange Termination
SPTC
— Swaziland Post and Telecommunications Corporation
TE
— Thermoelectric
SNA
— Systems Network Architecture
WIXD
— Wireless Internet eXpress Data Connection
WDP
— Wireless Data Pool
SDP
— Service Definition and Provisioning
DP
— Dial Pulsing
WTRS
— Wisconsin Telecommunication Relay System
WTIS
— Wireless Telecommunications Information & Services
CNA
— Called Number Authority
IRB
— Instituteuction Reorder Buffer
LMOS
— Loop Maintenance Operations System
RASC
— Radio Access System Controller
MP
— Management Processor
WTEL
— Wireless TELephony
RA
— Return Alarm
ECS
— Emergency Communication System
SDTA
— South Dakota Telecommunications Association
EOC
— Embedded Operations Channel
OTD
— Open Terminal Directive
NCA
— Non-Call Associated
MPPP
— Multilink Point-to-Point Protocol
TRF
— Transmit Reject Filter
IPD
— Intelligent Pulse Decoding
CS
— Carrier Sense
DLT
— Double Leading Tone
UDTX
— Universal Data Transceiver
PSS
— Phone Search Space
AV
— AUTOVON
WHAT
— Wireless Hybrid Asynchronous Time-bounded
DOS
— data over signaling
UDS
— Universal Directory Service
LE
— Line Encryption
DPE
— Dollar Phone Enterprise
TPC
— Transmit Power Control
WACP
— Wide Area Calling Plan
VMUI
— Voice Mail User Interface
OR
— Office Regenerator
RLDI
— Receive Line Data Input
TOH
— Transport Overhead
RAST
— Receive and Send Terminal
WTDC 2002
— World Telecom Development Conference 2002
CTR
— Carrier Telegraph Receiver
BT
— Best Telecommunications
BCDMA
— Broadband CDMA
TXC
— Transmission Complete
TSG
— Test Signal Generator
EPSCS
— Enhanced Private Switch Controlled System
WBIA
— Wireless Broadband Internet Access
WLSM
— Wireless LAN (Local Area Network) Springboard Module
IFLS
— Inter-Frequency Load Sharing
MDCZ
— Monthly Demand Charge for a Zone
WNRC
— Wireless Networks Research Center
SATRA
— A Saudi Arabian Telecommunications Regulatory Authority
USITA
— United States Independent Telephone Association
NCSU
— North Carolina State Universityrsity
DCAT
— DSL (Digital Subscriber Line) Customer Advocacy Team
VODAFONE
— Combined Voice, Data, Telephone:
ITTC
— Information and Telecommunication Technology Center
SCM
— Service Class Mark
ACF
— Advanced Communications Facility
DT
— Dial Tone
DCR
— Dropped Call Rate
ERMES
— European Radio Message System
VPF
— Virtual Private Facility
WBT
— Wireless Business Technology
WTSF
— Wireless Telecommunication Services Facilities
WADS
— Wireless Access Development System
NETS
— Nationwide Emergency Telecommunications Service
VMLA
— Virtual Mobile Location Area
CPEB
— Channel Partner Enablement Briefing
M-LEAD
— Mouth Lead
SMDF
— Subscriber Maintenance Distributing Frame
PD
— Power Distribution
LAS
— Local Authentication Service
WBCS
— Wireless Business Communications Systems
EDGE
— Edhanced Data Rates for Global Evolution
ATR
— Advanced Telecommunications Research laboratory
EUCL
— End User Common Line
TSA
— Terminating Switched Access
BP
— Burst Period
WQOS
— Wireless Quality of Service
DB
— Dropped Burst
RLCI
— Receive Line Clock Input
WP7
— Windows Phone 7
BS
— Basic Service
WTDC
— World Telecommunications Development Conference
ARP
— Access Responsible Party
IVD
— Integrated Voice and Data
DT
— Dialup Terminal
RBHC
— Regional Bell Holding Company
SSD
— Source-surface Distance
TIC
— Talking In Confidence
WNA
— Wireless Network Adapter
GWCS
— General Wireless Communications Service (46560 - 4685 MHz)
TTE
— Telecommunications Terminal Equipment
DCPV
— Daily Customer Pool Volume
WNE
— Wireless Network Experiment
WRI
— Wireless Reader Interface
C
— Connection
SLTS
— Sri Lanka Telecom Services
RWT
— Receiver Wait Time
WAVE
— Wireless Audio Visual Email
RATS
— Richmond Amateur Telecommunications Society
WIGLE
— Wireless Geographic Logging Engine
TTK
— Telephone Travel Kit
DCPZ
— Daily withdrawal coincident with Customer Peak for a Zone
WTDC 98
— World Telecom Development Conference 1998
WNRL
— Wireless Network Research Laboratory
VMAC
— Voice Mobile Attenuation Code
WPMS
— Wireless Protocol Management System
MMT
— Multimedia Multiparty Teleconferencing
WMTP
— Wireless Messaging Transfer Protocol
HCF
— High Connection Failure
PIC
— Pre-Subscribed Interexchange Carrier
TSAPI
— Telephony Server Application Programming Interface
OHD
— Optical Heterodyne Detection
USPRO
— United States Product Data Association
QRW
— Quasi-Random Word
VA
— Voice Activity
SLC
— Subscriber Line Concentrator
CAS
— Carrier Activity Sensor
B
— Bits
WCPE
— Wireless Customer Premises Equipment
CD
— Connect Direct
WWCE
— World Wide Cellular Extension
TACS
— Total Access Communications Systems
CPP
— Calling Party Pay
RTE
— Run-Time Environment
QC
— Quality Conversation
TIRKS
— Trunk Integrated Records Keeping System
CRT
— Combined Rlogin and Telnet
WWO
— Wireless Work Order
T2R
— Trusted Transaction Roaming
RPT
— Reply Paid Telegram
CPIC
— Cost Per Inbound Call
CVSD
— Continuously Variable Slope, Delta modulation
SILO
— Signal Intercept from Low Orbit
RSS
— Remote Switching Sites
WPA
— WiFi Protected Access
LQF
— Line Quality Function
MARS
— Military Affiliated Radio System
TLWS
— Trunk and Line Work Station
EUS
— End User Segment
WGIS
— Wireless Geographical Information System
DB
— Dial Back
TUMS
— Telephone and Utilities Maintenance System
TMAB
— Telecom Managers Association of Belgium
TAP
— Telocator Alphanumeric Paging
CMM
— Cable Management Module
RPS
— Really Poor Service
LQI
— Line Quality Indicator
F
— Flowability
WICI
— Wireless Innovations in Communications Initiative
WTID
— World TELECOM Internet Day
CBO
— Call-Back Only
YLT
— Your Local Telecom
WIAD
— Wireless Integrated Access Device
SHIT
— Single-Hop Infrastructure Transmission
TBF
— Telephone Band Filtering
IMM
— Interactive Mobile Media
WIPN
— Wireless Internet Protocol Network
SPV
— Sound, Picture, Voice
VCA
— Voice Communications Adapter
WECM
— WebSphere Everyplace Connection Manager
DCU
— Drum Control Unit
WLTG
— Wireless LAN (Local Area Network) Technology Group
CP
— Customer Premises
WLAB
— Wireless LAN (Local Area Network) Access Bridge
VOIPTXT
— Voice over Internet Protocol Text
RPE-LTP
— Regular Pulse Excited - Long Term Prediction
TSY
— Telephony Server
ITC
— Interstate Telecommunications Cooperative
ASLV
— Augumented Satellite Launch Vehicle
HIDF
— Horizontal Intermediate Distributing Frame
XI
— X Identification (frame)
MBA
— Message Body Authenticator
UMTS
— Unified Mobile Telecommunication System
APTG
— Academy for Professional TraininG
CP
— Charging Party
RGC
— Resource-Guaranteed Connection
SEFL
— Single-Ended Fault Locating
UTRA
— Universal Terrestrial Radio Access
VMY
— Voice Mobility
BOT
— Baseline of Text
WIMC
— Wireless Intelligent Mobile Communicator
ISD
— Instituteuctional Systems Design
ITR
— Intelligent Text Retrieval
T
— Tipper
STX
— Start of Transmission
WPMS
— Wireless Pay phone Management System
WWJ
— Wireless Watch Japan (est. 2001)
RSI
— Repetative Strain Injury
VRR
— Videoconferencing Reservation Request
TMAP
— Technical Management Assistance Programme
GC
— Global Communications
UL
— Upper Layer
MMS
— Meteorological Measurement System
SCPI
— Standard Commands for Programmable Instituteuments
BS
— Burst Selector
UWT
— United World Telecom
WNIU
— Wireless Network Interface Unit
RSS
— Remote Switching System
WTNO
— Wireless Technologies and Network Overview
FC
— Fiber Channel
SRP
— Specialized Resource Point
ZDL
— Zonal Daily Load
UCC
— Universal Connectivity Charge
UNS
— Universal Numbering System
WFOC
— Wireless Full Operational Capability
JLS
— Just Lousy Service
WRAN
— Wireless Rural Area Network
T1
— 1,544 Mbits per Second line
VMB
— Voice Message Broadcasting
TTS
— Telephone Traffic Simulator
CTM
— Cellular Textphone Modem
WFUP
— Wireless Fair Usage Policy
TLC
— Telecommunication Link Controller
XDSL
— x (any type of) Digital Subscriber Line
RACE
— Research into Advanced Communications in Europe
TMR
— Trunked Mobile Radio
NM
— Network Manager (GSFC)
NAS
— North American Standard
WOSN
— Wireless Optimization Service Node
IDDD
— International Direct Dialing Designator
VLDS
— Very Large Data Storage
RTS
— Real-Time Simulator
CAT
— Charges, Access, and Terms
IMS
— IP (Internet Protocol) Multimedia Subsystem
WFQ
— Weighted Fair Queueing
NMS
— Network Management Service
VIDF
— Vertical Intermediate Distributing Frame
ISC
— Infrastructure Service Charge
HN
— Home Number
AMI
— Alternate Mark Indicator
KTL
— Killarney Telecommunications Ltd
UTI
— Union Internationale des Telecommunications
TSD
— Transmission System Development
FDS
— Filtering, Distributing, and Serving
MCD
— Mobile Communications Division
MLS
— Mobile Location Services
IDS
— Information Directory Service
BM
— Maximum Burst size
CSA
— Carrier Servicing Area
UNP
— UN-Published
IKI
— Institut Kosmitcheskikh Issledovanii
PTCL
— Pakistan TeleComunication Land-line
ULQ
— User Level Quality
RKB
— Ring Knowledge Base
WIAX
— WIreless Internet Access
SCAYNP
— Someone Calls And You No Pay
F
— Farenheit
SRM
— Short-Range Modem
SNECS
— Single National Emergency Call System
SE
— Status Enquiry
SCC
— Switching Control Center
QNL
— QoS Networking Laboratory, Boston University
WTFB
— World Telecoms Financial Benchmarks
SCRG
— Servicing Carrier Reference Guide
FUNI
— Frame (relay) User Network Interface
IMR
— International Mobile Roaming
SLT
— Signaling Link Termination
LCWN
— LiveCache Wireless Network
SSS
— Switching Subsystem
RCE
— Region Code Enhancement
SWF-DS1
— SWitched Fractional Digital Signal 1 line
VFM
— Voice Frequency Measurement
HTI
— Handoff Transfer Initiate
LR
— Line Rate
BPS
— Baud per Second
WWRF
— Wireless World Research Forum
ROI
— Return On Information
RUIM
— Removable User Identification Module
WCIT
— World Conference on International Telecommunications
TSB
— Telecommunications System Bulletin
SWNI
— Smart Wireless Network Interface
VYP
— Virtual Yellow Pages
SMS
— Server Malloc (Memory ALLOCation) System
WGS
— Worldwide Geodesic System
VFM
— Voice/ Fax Module
SCC
— Service Connection Charges
TICS
— Telecommunications And Instructional Computing Support
TTX
— TeleTeXt
VQI
— Voice Quality Improvement
WGX
— WebPhone Gateway eXchange
DTS
— Data Telecom Support
SHOE
— Simple Hypertext Ontology Extensions
SLIM
— Service Level Improvement Method
SMT
— Secure Mobile Transfer
WSI
— Wireless Services Integration
STN
— Satellite Telecommunications Networks
MLP
— Multi-layer Perception
SS
— Single Step
WNT
— Windows NT
CT
— Channel Termination
VMES
— Vehicle-Mounted Earth Station
RCVS
— Recharge Card Voucher System
WLA
— WireLess Access
LTA
— Leased Transport Area
WIBR
— WIreless gate BRidge
RCS
— Radio Cluster Server
LSI
— Loop Start Interface
VQC
— Vector Quantizing Code
TRD
— Timed Release Disconnect
RTNZ
— Rate for Transmission service for a Non-Zone load
RCMAG
— Recent Change Memory Administration Group
WWZA
— Wireless WorkZone Alliance
FSS
— Fixed Satellite System
ISI
— Institute of Scientific Information
WRBB
— Wireless Rural BroadBand
FAS
— Fals ansewring supervision
PTML
— Pakistan Telecommunications Mobile, LTD.
VTPM
— Virtual Terminal Protocol Machine
MAPS
— Maps Application Provisioning System
WBCT
— Wireless Broadband Communications Technology
TW
— TWinbrook (telephone exchange)
CF
— Carrier Furnished
ICE
— Integrated Communications Environment
WDDF
— Wireless Data Delivery Function
WGEN
— Wireless GENeration
AU
— Audio Units
WBGK
— Wireless BridGe Kit
WNA
— Wireless Network Auburn
WT
— Wireless Telephony
WLIA
— Wireless Location Industry Association
SAM
— System Administration Manager
CENTREX
— Central Office Exchange
TBS
— Telephone Billing Service
FTFW
— FactoryTalk For Windows
VNT
— Very Nice Telephone
TCMS
— Trunked Code Management System
WCTB
— Wireless Campus TestBed
ASB
— Application-Specific Bit
S
— Subscriber
AMS
— Analog and Mixed Signal
BTS
— Best Transmission Second
VANS
— Value Added Network Services
WOQS
— Wireless Operator Quarterly Service
TMO
— Telecommunications Management Officer
ULLS
— Unconditioned Local Loop Service
TBQ
— Telecommunications Billing Question
FP
— Full Period of service
ZFH
— Novell ZENworks For Handhelds
BGSA
— Banded Geographical Service Area
TLPU
— Telecommunications Line Protector Unit
IPM
— Interpersonal Messaging System
RALB
— Resource All Busy
TTFG
— Telecommunications Technology Forecasting Group
RC
— Rudy's Cellular
NACSIM
— National Communications Security Information Memorandum
QOB
— Quality Of Burst
RTPB
— Residential consumer Third Party Billing
COC
— Carrier of Carriers
CAS
— Combined Antennae Services
EPPR
— Empty Packet Production Rate
VO
— Validation Office
O
— Oblique
WCFQ
— Wireless Credit-based Fair Queueing
ITR
— International Telecommunication Regulations
WRB
— Wireless Receiver Box
CLID
— Calling Line IDentifier
TLR
— Traffic Line Remover
MB
— Medium Band
PSA
— Protocol-Specific Annex
SVD
— Simultaneous Voice and Data Processor
ULSI
— Ultra Large-scale Integration
TTD
— Temporary Transmit Delay
WTNPA
— Wireless Telephone Number Portability Act
O
— Other
VTAC
— Vermont Telecommunications Application Center
DM
— Distributed Management
PVS
— Pennisula Video Surveillance
WLEC
— WireLess Ethernet Converter
ISA
— Innovative Slot Allocation
SIP
— Service Interface Point
PWP
— Plastic Wall Phone
MWC
— Multi-Way Calling
STR
— Synchronous Transmitter/Reciever
LW
— Long-wavelength
TTR
— Touch Tone Required
ISM
— Invocation State Machine
CAL
— Connection Access License
TS
— Tip and Sleeve
SMI
— Subsystem Multiplicity Indicator
SG
— Supergroup
TIRF
— Telecoms Industry Regulatory Forum
TETRA
— Trans-European Trunked RAdio
WTSO
— Washington Telecommunications Services and Operations
TOS
— Terms Of Service
URQ
— Unregistration Request
SOA
— Service Order Administration
ITP
— Interdisciplinary Telecom Program
WDCX
— Wideband Digital Cross-connect
WNQ
— Wireless Network Quality
TACS
— Telephone Access Customer Satisfaction
GRT
— Georgian Railway Telecom
WNQR
— Wireless Network Quality Review
DS
— Data Service
FAST
— Field Automated Subscriber Testing
SMC
— Switch Management Center
VCC
— Virtual Call Center
VERT
— Vertical (distribution frame)
TTE
— Tallahassee Telephone Exchange
WLDD
— Wireless Location-Dependent Data
TFA
— Toll Free Authorization
VMR
— Video Mail Retrieval
TNS
— Telephone Notification System
FB
— Framing Bit
PTC
— Pots Tandem Centrex
UNLD
— UNlimited Long Distance
RAU
— Residential Adaptor Unit
SX
— Simplex (one-way)
WBOX
— Wireless in a Box
SD
— Signal distribution
TTP
— Third-Party Provider
WBSN
— Wireless Broadband-Sharing Network
WSP
— Wireless Signal Processor
TNS
— Terminating Noncritical Section
SP
— Single Purpose
VINF
— Vista INformation Solution
LG
— Line Good
WCTP
— Wireless Communication Transfer Protocol
WNL
— Wireless Networks Laboratory
SCC
— SuperComputer Center
WTAI
— Wireless Telephony Applications Interface
MAP
— Manufacturers Application Protocol
TISM
— Telecommunication, Information Studies and Media
WBBI
— Wireless BroadBand Internet
TVM
— T1 Voice Module
WLLD
— Wireless Local Loop Delivery
AP
— Applications Processor
SAM
— Sme Access For Mobile
SDNB
— Secondary DN Call Blocking
TDSA
— TELCO (TELephone COmpany) Distribution Support Architecture
WMIP
— Wireless-Mobility Integration Protocol
SIO
— Subscribers In Operation
ISUP
— International Standards Telecommunications Union
IVS
— Interactive Video Services
CI
— CHARM Interface
FT
— Field Testing
WUSI
— Wireless Universal Strike Interface
VMS
— Virtual Machine System
HBOS
— High-Bandwidth Optical Services
UKB
— Universal Keyboard
RTA
— Rapid Thermal Annealing
QPW
— QUIKPAGER Wireless
WWTA
— World Wireless Technologies, Asia
WIZ
— Wireless Internet Zone
TMD
— Trunk Main Distributing
WNI
— Wireless Network Interface
TSI
— Telecommunications Services Inc
SLLR
— Single Line Loud Ringer
ETC
— Eligible Telecommunications Carrier
TIP
— Telecommunications Infrastructure Planning
TC
— Terminating Channel
SRD
— Short Range Devices
UMC
— Ukrainian Mobile Communications
UPMT
— Universal Per-application Mobility management using Tunnels
WCRM
— Wireless Customer Relationship Management
LTS
— Laboratory for Telecommunication Sciences
WTCD
— World Telephone Card Databank
TWT
— Time Warner Telecom
NSC
— Non-Standard Facilities Command
RDN
— Relative Distinguishing Name
FPS
— Fast Packet Switching
VQL
— Vector Quantizing Level
AN
— Accessory Number
TJR
— Trunk and Junction Routing
FSS
— Fixed Satellite Services
ALS
— Accounts Ledger System
WWSI
— Wireless Web Systems Integration
WCS
— Wireless Communication Services
SCP
— Service Commitment Period
VIEW
— Virtual Interface Environment Workstation
PTC
— Pacific Telecommunications Council
WNAR
— Wireless Network Access Requirements
TAC
— Terminal Access Circuit
RB
— Reverse Billing
CU
— Copper Local Loop
VIL
— Voice Interconnect Link
WFII
— Wireless Facilities Information Infrastructure
TPS
— Transmission Parameter Signalling
TCP
— Telephone Connecting Program
WBA
— Wireless Business Application
DE
— Development Estimate
TELEX
— TELegraph EXchange
PSP
— Payphone Service Provider
WDSN
— Wireless Distributed Sensor Networks
WLHP
— WireLess HeadPhone
RIM
— Remote Integrated Mulitplexor
SLM
— Signal Line Measurement
WRAPS
— Wireless Remote Audio Perimeter Sharing
RINO
— Roaming International Network Operator
PC
— Process Control
TMC
— Timeslot Management Channel
WIEA
— Wireless Internet Enterprise Application
TAB
— Tape Automated Bonding
WRBS
— Wireless Router Base Station
UA
— Universal Access
IAV
— Images, Audio, Video
MJC
— Modular Jack Cable
SPF
— Summertime Phone Functionality
VZP
— Virtual Zapping Phone
SARS
— Service Assistance Referral System
WPCS
— Wireless Personal Communications Services
VNTR
— Variable Number Tandem Repeats
ESP
— Electro-Selective Pattern
RAT
— Radio Access Technologies
TI
— Time Independent
LVZ
— Line Variance Zero
WLSS
— WireLess Select Switch
WTRN
— Wireless Token Ring Network
TIE
— Telephone Interconnect Equipment
MLE
— Metropolitan Line Extension
IPS
— Instituteuctions Per Second
LAW
— Local Area Wireless
MCN
— Mittweidaer CampusNet
TPSN
— Triple Play Subscriber Network
WNPD
— Wireless Network Persistent Data
STC
— Signaling Transport Converter
WCZO
— Wireless Communication Zoning Ordinance
MC
— Make Call
WFZ
— Wire Free Zone
SSG
— Signalling Server Global
FL
— Fiber Link
MBS
— Meter Backflow Services
VTS
— Virtual Talk Session
WHIW
— Wireless Home Installation Wizard
WVAS
— Wireless Value Added Services
SSP
— Secure Service Provider
TPQ
— Transmission Power Quality
RB
— Resource Bearer
RO
— Recieve Only
WIPSC
— Wireless Intelligent Personal Server Consortium
TSM
— Telecommunications Systems Management
SNAP
— Subnetwork Access Point
RC
— Rating and Certification
TCT
— Tin Can Technology
STS
— Small Telephone System
PST
— Public Safety Telecommunications
TES
— Telecom Electric Supply
IMS
— Internal Messaging System
SB
— Service Billing
WLSE
— Wireless LAN (Local Area Network) Solution Engine
TT
— Tiny Telephone
EOC
— End Of Contents
ITA
— Inferior Telecommunications Apparatus
CTR
— Covert Telephone Recording
TSR
— Telephone Special Range
SLM
— Signal Leakage Meter
RTDF
— Rural Telecomunication Development Fund
FTW
— France Telecom Wireless
CUA
— Call Unit Autodialer
IAC
— Install And Commission
TDU
— T1 Distribution Unit
GTI
— Graphics, Text, and Images
VQE
— Voice-Quality Enhancements
WCOE
— Wireless Center of Excellence
WEWI
— Wireline Electronic Weight Indicator
OC
— Operations Channel
TAP
— Telecommunity Appalachian Project
SA
— Service Analysis
TIE
— Telephone Interconnect Expansion
SS4
— Signalling System 4 (2040/2400 Hz tones)
T
— Telecom
WWYP
— Westford Web Yellow Pages
YPBX
— Ytelco Private Branch Exchange
RYP
— Romanian Yellow Pages
RD
— Receive Delay
HS
— Heterogeneous Services
SAG
— Subscription Assignment Group
UMS
— Universal Messaging System
PPC
— Pay-Per-Call
SCD
— Strong Commit Dependency
SU
— Service Unlimited
RI
— Ring Indicate
TSL
— Transaction Sublayer
TMS
— Time-Multiplexed Switch
WLDS
— Wilkes Long Distance Service
TT
— Touch Tone
RI
— Receiver Induced
WCS
— Wireless Coupon System
RTB
— Remote Telephone Bell
ER
— EntityRelationship
ROS
— Remote Operations Service
UIQ
— User Interface Quartz
MCP
— Mobile Centered Paging
WIUB
— WIreless Universal Base-mounted
WURST
— Wideband, Uniform Rate, Smooth Truncation
SD
— Software Distributor
RCS
— Real Communication Solution
SSS
— Self-Synchronous Scrambling
WIXC
— Wireless Internet eXpress Connection
MCA
— Missed Calls Alert
VWM
— Virtual Wire Manager
TS
— Telecom Server
SO
— Serving Office
TO
— Telecommunications Operator
TP
— Typical Provider
WWZ
— Wireless Work Zone
RDD
— Random Digit Dialing
TOS
— Testing Operation System
VZBB
— Verizon BroadBand
SI
— Service Indication
RT
— Refuse Transmission
TCO
— Total Connection Operation
SCM
— Selected Communications Mode
WOW
— WithOut Wires
TOPS
— Terahertz to Optical Pulse Source
WMBD
— Wireless Media Broadcast Device
SIF
— Signaling Information Fields
RAS
— Remote Access Services
SC
— Supervisory Center
VR
— Variable Rate
TIM
— Telecom Idea Management
VIS
— Vodafone International Services
WIKS
— Wireless Interactive Keypad System
RSU
— Required Service Utilization
TLC
— Transparent Line Control
WLHB
— WireLine HandBook
SSC
— Service Shortcut Changer
SR
— Subscriber Ready
TPI
— Tip-Party Identification
TOC
— Telecommunications Outdoor Connectors
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