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