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Computing & IT
>> Telecom Abbreviations
Look through 4999 acronyms and abbreviations related to Telecom:
XFMR
— Transformer
IPB
— Invision Power Board
DDRS
— Dynamic Data Rate Selection
URL
— Universal Resource Locator
LAN
— Local Area Network
EDD
— Earliest Due Date
EBITDA
— Earnings before Interest, Taxes, Depreciation and Amortization
YTD
— Year To Date
CBCU
— Centralized Broadband Control Unit
YMMV
— Your Mileage May Vary
ETA
— Estimated Time of Arrival
OIC
— Oh I See
GFSK
— Gaussian Frequency Shift Keying
DCE
— Data Circuit-terminating Equipment
XML
— Extensible Markup Language
CSMA/CA
— Carrier Sense Multiple Access/Collision Avoidance
BBS
— Bulletin Board Service
DND
— Do Not Disturb
ECG
— Electrocardiogram
DWDM
— Dense Wavelength Division Multiplexing
APR
— Annual Percentage Rate
CSR
— Customer Service Representative
C3I
— Command, Control, Communications & Intelligence
THX
— Thanks
C4I
— Command, Control, Communications, Computers, & Intelligence
BRDF
— Bidirectional Reflectance Distribution Function
NMSE
— Normalized Mean Square Error
OEM
— Original Equipment Manufacturer (usually in reference to car parts)
YGWYPF
— You Get What You Pay For
ROM
— Read-Only Memory
PPM
— parts per million
DOE
— Distributed Object Environment
FTP
— File Transfer Protocol
LASER
— Light Amplification By Stimulated Emission Of Radiation (cf. Maser)
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.
IQ
— Intelligence Quotient
CT
— Computed Tomography
LRU
— Line Replaceable Unit
UK
— United Kingdom of Great Britain and Northern Ireland
POC
— Point Of Contact
CCTV
— Closed-circuit television
IAMAI
— Internet and Mobile Association of India
BTW
— By The Way
ASAP
— As Soon As Possible (pronounced AY-sap)
ANSI
— American National Standards Institute, Inc.
SYN
— Synchronous
X-BAR
— Crossbar telephone exchange
ATM
— Automatic Teller Machine
CSMA/CD
— Carrier Sense Multiple Access with Collision Detection
IT
— Information Technology
ARP
— Address Resolution Protocol (ATM)
RTN
— Regional Telecommunication Network
ISO
— In Search Of
ISAR
— Inverse Synthetic-Aperture Radar
CU
— See You
RQMT
— Requirement
CR
— Carriage Return
RDF
— Resource Description Framework
TEMIP
— Telecommunications Management Information Platform
P&L
— Profit and Loss statement
IRC
— Internet Relay Chat
S X S
— Step-by-Step
RAEX
— Roaming Agreement EXchange
BPM
— Beats Per Minute
LED
— Light-Emitting Diode
EPA
— Environmental Protection Agency (US)
MAN
— Metropolitan Area Network
FIFO
— First In, First Out
XA-FR
— Exchange Access Frame Relay
COB
— close of business (End of duty day)
SD
— Standard Deviation
E-LEAD
— Ear Lead
CPU
— Central Processing Unit
PDF
— Portable Document Format (created by Adobe Acrobat)
X-OFF
— Transmitter Off
OC-256
— Optical Carrier Signal, Level 256
WACN ID
— Wide Area Communications Network IDentifier
PDT
— Pacific Daylight Time
S-BCCH
— Short Message Service Broadcast Control Channel
C-NBAP
— Common Node B Application Part
A-KEY
— Authentication key
X-ON
— Transmitter On
CPE
— Customer Premises Equipment
B-ICI
— Broadband Inter-Carrier Interface
UAX 14
— Unit Automatic eXchange type 14
DAHDI
— Digium/Asterisk Hardware Device Interface
PO
— Purchase Order
ATOM
— Any Transport over MPLS (Multi-Protocol Label Switching)
ZDBOP
— Ziff-Davis Benchmark Operation
UR
— Your
ISO
— International Organization for Standardization
FDIC
— Federal Deposit Insurance Corporation
QFSK
— Quadrature Frequency Shift Keying
PDR
— Preliminary Design Review
ASTM
— American Society for Testing and Materials (Philadelphia, Pennsylvania)
FEMA
— Federal Emergency Management Agency
IP
— Internet Protocol
LLC
— Limited Liability Company
F2F
— Face To Face (also Meeting In Person)
OC-18
— Optical Carrier Signal, Level 18
QC
— Quality Control
ATTN
— Attention
RFP
— Request For Proposal
AC
— Alternating Current
GUI
— Graphical User Interface (goo-ey)
I.LINK
— IEEE 1394, High Performance Serial Bus, implementation
ISP
— Internet Service Provider
CDR
— Critical Design Review
VIP
— Very Important Person
CY
— Calendar Year
CSMA/CD
— Carrier sense multiple access / collision detection
M-CSI
— Mobility management CAMEL (Customized Applications for Mobile network Enhanced Logic) Subscription Information
D-NBAP
— Dedicated Node B Application Part
MOU
— Memorandum of Understanding (an MOU between Food & Drug Administratin and a regulatory agency in another country allows mutual recognition of inspections)
API
— Application Programming Interface
T-IC
— T-interConnect
AUP
— Acceptable Use Policy
SABGW
— System Architecture Evolution Gateway
IRR
— Internal Rate of Return
ACH
— Automated Clearing House
H323
— ANSI standard for format over IP
OC-9
— Optical Carrier Signal, Level 9
RFQ
— Request For Quotation
EST
— Eastern Standard Time
CCB
— Change Control Board
GSM
— Global System for Mobile Communications
WBS
— Work Breakdown Structure
EAP
— Employee Assistance Program
IPO
— Initial Public Offering
BRB
— Be right back
MLS
— Microwave Landing System
EDI
— Electronic Data Interchange
O&M
— Operation and Maintenance
CONG
— Congestion message
VC-ATOD
— Virtual Clearinghouse on Alcohol, Tobacco and Other Drugs
FAQ
— Frequently Asked Questions (sometimes Pronounced Fak)
T-CARRIER
— Trunk Carrier
PVT
— Private
CSMA
— Carrier Sense Multiple Access
CEO
— Chief Executive Officer
WTG
— Way To Go
C³CM
— Command, Control and Communications Countermeasures
MTBF
— Mean Time Before Failure
RF
— Radio Frequency
WB
— Welcome Back
BTU
— British Thermal Unit
ASCII
— American National Standard Code for Information Interchange
AMD
— Advanced Micro Devices, Inc. (producer of computer chips)
RPM
— Revolutions Per Minute, (Rotations Per Minute)
AFAIK
— As Far As I Know
ADSL
— Asymmetric Digital Subscriber Line
LCD
— Liquid Crystal Display
KBYTE
— Kilobyte (103)
TQM
— Total Quality Management
CV
— Curriculum Vitae
DOA
— dead on arrival
R&D
— Research & Development
VAZO
— Violating All-Zero Octet
SRAM
— Static Random Access Memory (ess-ram)
FET
— Field Effect Transistor
SMTP
— Simple Mail Transfer Protocol
ATM
— Asynchronous Transfer Mode
SME
— Subject Matter Expert
ABC
— activity based costing
VAT
— Value Added Tax
ASA
— American Standards Association
ECU
— Electronic Control Unit
CRT
— Cathode Ray Tube (type of TV)
SLA
— Service Level Agreement
MDF
— Main Distribution Frame
NPV
— Net Present Value {economics}
GIS
— Geographic Information System
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
AIR
— Account Information and Refill
ARPA
— Advanced Research Projects Agency (made early internet)
ICT
— Information and Communication Technology
VPN
— Virtual Private Network (ATM)
IRL
— In Real Life
PUHU
— Pick Up Hang Up
ASME
— American Society of Mechanical Engineers
MOB
— Mobile
MRI
— Magnetic Resonance Imaging
ACE
— Access Control Entry
AM
— Ante Meridian
EOM
— End Of Message
SOW
— Statement Of Work
HTTP
— Hypertext Transfer Protocol
ABI
— Application Binary Interface
DAM
— Diagnostic Acceptability Measure
COR
— Carrier Operated Relay
DBORS
— Data Base of Records
PDA
— Personal Digital Assistant
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.
EDS
— Electronic Data Systems Corporation
DARPA
— Defense Advanced Research Projects Agency (US)
EU
— European Union (1994; formerly referred to as the EEC or EC)
GATT
— General Agreement on Tariffs and Trade (government)
MIS
— Management Information System (OSHA)
GPS
— Global Positioning System (ex-NAVSTAR)
RFI
— Request For Information. Sales department shorthand. Special priority when use in conjunction with RFN (see below).
PCB
— printed circuit board
DSC
— Differential Scanning Calorimetry
ACK
— Acknowledge (telecommunications; Cf. NAK)
TBD
— To Be Determined
IVR
— Interactive Voice Response (telephone technology)
JV
— Joint Venture
WWW
— World Wide Web
DOD
— United States Department of Defense
ATA
— Area Transportation Authority
CSA
— Canadian Space Agency
CD
— Compact Disc
WML
— Wireless Markup Language
EIS
— Executive Information System
RQMTS
— Requirements
ADM
— Add-Drop Multiplexer
ESA
— European Space Agency
RDY
— Ready
RPI
— Retail Price Index
NPI
— New Product Introduction
SWAG
— Scientific Wild Ass Guess
NSF
— National Sanitation Foundation
VVX
— Voice and Video eXchange
CIO
— Chief Information Officer
RFO
— Reason For Outage
WWW3
— World Wide Web Consortium
NYSE
— New York Stock Exchange
AOL
— America on line
CPM
— Critical Path Method
FIPS
— Federal Information Processing Standard
RAM
— random-access memory
D-H
— Diffie-Hellman
TNX
— Thanks
DSS
— Decision Support System
ADD
— Addendum
QMS
— Quality Management System
QA
— Center for Quality Assurance in International Education
CUG
— Closed User Group
CAE
— Computer-Aided Engineering
SDD
— Software Design Document
PDH
— Plesiochronous Digital Hierarchy
ISDN
— Integrated Services Digital Network
BBS
— Bulletin Board System
SAN
— Storage Area Network
EVP
— Executive Vice President
FAA
— Federal Aviation Administration
SAR
— Search And Rescue
ATCRBS
— Air Traffic Control Radar Beacon System
FX
— Foreign Exchange
DES
— Data Encryption Standard
JIT
— Just in time
AM
— Amplitude Modulation
AGC
— Automatic Gain Control
RFC
— Request For Comment
HVAC
— Heating, Ventilation, and Air Conditioning
PGP
— Pretty Good Privacy (encryption)
RDBMS
— Relational Database Management System
POP
— Point Of Presence (Internet)
COO
— Chief Operation Officer
IETF
— Internet Engineering Task Force
MST
— Mountain Standard Time
TTYL
— Talk To You Later (Internet Slang)
CAD
— Computer Aided Designer
AES
— Advanced Encryption Standard
CIR
— Committed Information Rate (Frame Relay)
SDR
— Special Drawing Rights
CRM
— Customer Relationship Management
DWDM
— Dense Wavelength-Division Multiplexing
TNYWR
— The Number You Will Receive
AE
— Account Executive
CGI
— Common Gateway Interface
MTTR
— Mean Time To Repair
CIS
— Commonwealth of Independent States
CC
— Carbon Copy
QOS
— Quality of Service
CDT
— Central Daylight Time
DAC
— Discretionary Access Control
ACM
— Association for Computing Machinery
IRS
— U.S. Internal Revenue Service
BCC
— Blind Carbon Copy
DNS
— Domain Name System
ACK
— ACKnowledgment
CBT
— Computer Based Training
BVR
— Beyond Visual Range
EEC
— European Economic Community (predecessor of the European Union|EU)
DRAM
— Dynamic Random Access Memory (dee-ram) (computing)
VM
— Voice Mail
PRI
— Primary Rate Interface (ISDN)
SAS
— Statistical Analysis System
OCR
— Optical Character Recognition
ACE
— Advanced Computing Environment
DHCP
— Dynamic Host Configuration Protocol
DBMS
— Database Management System
ATC
— Air traffic control
Q&A
— Question & Answer
ECO
— Engineering Change Order
EDT
— Eastern Daylight Time
SIC
— Standard Industrial Classification (Code)
GSA
— U.S. General Services Administration
DNS
— Domain Name Service
UDP
— User Datagram Protocol (FDDI related)
CST
— Central Standard Time (UTC-6 Hours)
SLIP
— Serial Line Interface Protocol
ROI
— Return on Investment
UPS
— Ultraviolet Photoelectron Spectroscopy
BR
— Branch
EFT
— Electronic Funds Transfer
SQA
— Software Quality Assurance
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
NATO
— North Atlantic Treaty Organisation
CB
— Call Back
ADR
— Address
UTC
— Coordinated Universal Time
FSAI
— Fiber Serving Area Interface
EC
— European Commission
AIS
— Automated Information System
PNG
— Portable Network Graphics (graphic file standard/extension)
ASP
— Application Service Provider
DOJ
— Department of Justice (US)
NIH
— Not Invented Here
WWW
— World Weather Watch
DSL
— Digital Subscriber Line
RM
— Regional Manager
NEC
— National Electrical Code
CAM
— computer aided manufacturing
PC
— Personal computer (host)
ABET
— Accreditation Board for Engineering and Technology, Inc.
NFS
— Network File System
EDVAC
— Electronic Discrete Variable Automatic Computer
TCO
— Total Cost of Ownership
CPT
— Carriage Paid To
UAV
— Unmanned Aerial Vehicle
CMS
— Content Management System
ACC
— Adaptive Cruise Control
MSN
— Microsoft Network
WAN
— Wide Area Network
DFD
— Displaced Frame Difference
DQPSK
— Differential Quadrature Phase-Shift Keying
100BASE-T2
— 100 Megabits per Second, Baseband, Two-pair Category 3 UTP cables
SCC
— Standards Council of Canada
PM
— Preventive Maintenance
SDMA
— Space Division Multiple Access
BPS
— bits per second
WYSIWYG
— What You See Is What You Get (pronounced Wizzy-wig. See Entry For Derived Acronyms)
LED
— law enforcement desk; light emitting diode
NIST
— National Institute of Standards and Technology
CFO
— Communication Filing Officer
DB
— Decibel
DDE
— Dynamic Data Exchange (in software parlance)
AOA
— Angle Of Arrival
MB
— Megabyte
ERP
— Enterprise Resource Planning
DLL
— Dynamic Link Library (computer file)
MBR
— Master Boot Record
UI
— User Interface
SBU
— Strategic Business Units
AQL
— Acceptable Quality Level
NOS
— Network Operating System
DDD
— Direct Distance Dial
FFT
— Fast Fourier Transform
CAA
— Civil Aviation Authority
RWR
— Radar Warning Receiver
AADC
— Automated Area Distribution Center
PST
— Pacific Standard Time (UTC-8 Hours)
ITU
— International Telecommunication Union
OFC
— Office
ROFL
— Rolling on the floor laughing
BST
— British Summer Time
AAAS
— American Association for the Advancement of Science
FCC
— Federal Communications Commission (US)
9
— Nine
BPR
— Business Process Re-engineering
CMM
— Capability Maturity Model
NTIS
— National Technical Information Service Technology Administration
ENIAC
— Electronic Numerical Integrator And Computer
SQL
— Structured Query Language
PMA
— Physical Medium Attachment
STP
— standard temperature and pressure (0° and 1 atm)
IP
— Intellectual Property
B2B
— Business to Businesse
PM
— post meridian
GPRS
— General Packet Radio Service
CLI
— Command line Interface (Cabletron)
NMR
— Nuclear Magnetic Resonance
IM
— Instant Message
RAID
— Redundant Array of Inexpensive Disks
EOT
— End Of Transmission
MLS
— Multiple Listing Service
KISS
— Keep It Simple Stupid
LRJ
— Location Reject
EBCDIC
— Extended Binary Coded Decimal Interchange Code (pronounced Eb-see-dik) (cf. BCD)
ROS
— Return on Sales
SCM
— Supply Chain Management
PERT
— Program Evaluation and Review Technique
AGP
— Accelerated Graphics Port
EEHO
— Either End Hop Off
OSHA
— Occupational Safety and Health Act (1970)
WDM
— Wavelength Division Multiplexing (fiber optics)
TNSTAAFL
— There's No Such Thing As A Free Lunch
DCOM
— Distributed Component Object Model
CCM
— counter-countermeasure
ZIP
— Zone Improvement Plan
DOS
— Disk Operating System
PECVD
— Plasma-Enhanced Chemical Vapor Deposition
CCSDS
— Consultative/Consultative Committee for Space Data Systems
SCSI
— Small Computer System Interface
HZ
— cycles per second (hertz)
APT
— Automatic Picture Transmission
EEG
— Electro-EncephaloGram
OMG
— Object Management Group
SOHO
— Small Office Home Office
CTD
— Cumulative Trauma Disorder
PDN
— Public Data Network
NA
— Not Applicable
ASEAN
— Association of South East Asian Nations
AT&T
— American Telephone and Telegraph (U.S. company, also known as "Ma Bell")
TC
— Telephone Call
JAXA
— Japan Aerospace Exploration Agency
AAAI
— American Association for Artificial Intelligence's
BSD
— Berkeley Software Distribution
CS
— Computer Science
DC
— Direct Current
DSA
— Digital Signature Algorithm
ISBN
— International Standard Book Number (ISO 2108)
ADT
— Atlantic Daylight Time (UTC-3 Hours)
ALC
— Automatic Level Control
WEP
— Wired Equivalent Privacy
AAC
— Advanced Audio Coding
ACL
— Access Control List
COQ
— Cost Of Quality
ERT
— Emergency Response Team
PSK
— phase-shift keying
BRI
— Basic Rate Interface
SEI
— Software Engineering Institute
ADPE
— Automatic Data Processing Equipment
AC
— Access Control
SOGA
— Share of Gross Adds
W3C
— World Wide Web Consortium
AATSR
— Advanced Along-Track Scanning Radiometer
FM
— frequency modulation
LMS
— Learning management system
PM
— Project Manager
UN
— United Narions
BIP
— Bit-Interleaved Parity
SAIC
— Science Applications International Corporation
CIA
— Central Intelligence Agency
AME
— Amplitude Modulation Equivalent
T&C
— Terms & Conditions
CUL
— See You Later
AT&T
— American Telephone & Telegraph
HW
— Hardware
AWG
— American Wire Gauge
Z
— Zero
ATN
— Aeronautical Telecommunication Network
DDL
— Data Definition Language
ESF
— Extended Super Frame (ATM)
MIPS
— Millions of Instructions Per Second
NTIA
— National Telecommunications and Information Administration
NEMA
— National Electric Manufacturer's Association
ISSN
— International Standard Serial Number (ISO 3297)
BT
— British Telecommunications
SVP
— Senior Vice President
CORBA
— Common Object Request Broker Architecture
VHF
— Very High Frequency
IANA
— Internet Assigned Numbers Authority
MMS
— Multimedia Messaging Service
BSOD
— Blue Screen Of Death
APPL
— Application
DCN
— Design Change Notification
HDML
— Handheld Device Markup Language
ISMI
— International mobile subscriber identity
RFD
— Request For Discussion
BUR
— Bandwidth Usage Redundancy
WMO
— World Meteorological Organization (ICSU)
DSSS
— Direct Sequence Spread Spectrum
DQE
— Detective Quantum Efficiency
OBO
— Or Best Offer
OM
— Old Man
WTO
— World Trade Organisation
EPR
— Ethylene-Propylene Rubber
DTI
— Department of Trade and Industry (UK)
DME
— Distance Measuring Equipment
DSCP
— Differentiated Services Control Point
ACTV
— Active
JPEG
— Joint Photographic Experts Group (24-bit image storage format)
SPC
— Statistical Process Control. Forerunning quality theory from the 1960s to TQC and TQM.
NIC
— Network Interface Card
NOAA
— National Oceanic and Atmospheric Administration (US)
ABR
— Available Bit Rate
PSTN
— Public Switched Telephone Network
ISS
— International Space Station
USGS
— United States Geological Survey (DOI)
ISAKMP
— Internet Security Association and Key Management Protocol
SSL
— Secure Socket Layer
ACD
— Automatic Call Distributor
SBC
— Southwestern Bell Corporation
SHA
— Secure Hash Algorithm
Y2K
— Year 2000
CCSD
— command communications service designator; control communications service designator
MHS
— Message Handling System (electronic)
LEO
— Low Earth Orbit (satellite communications)
ADN
— Advanced Digital Network
KM
— Knowledge Management
DTE
— Data Terminal Equipment
HTML
— Hyper Text Markup Language
ICANN
— Internet Corporation for Assigned Names and Numbers
ITSEC
— Information Technology Security Evaluation Criteria
SNMP
— Simple Network Management Protocol (ATM)
WIPO
— World Intellectual Property Organization
PBX
— Private Branch eXchange (company phone system)
EMG
— Electromyogram
EDD
— Envelope Delay Distortion
LEC
— Local Exchange Carrier
DMSP
— Defense Meteorological Satellite Program (U.S.)
SAE
— Society of Automotive Engineers
DLR
— Design Layout Record
BPRZ
— Bipolar Return-to-Zero
ASR
— Airport Surveillance Radar
EISA
— Extended Industry Standard Architecture
ECP
— Engineering Change Proposals
RM
— Resource Management
PT
— Project Team
EOB
— End Of Business
NAFTA
— North American Free Trade Agreement
EEPROM
— Electrically Erasable Programmable Read-Only Memory
VIRUS
— Vital Information Resources Under Siege
AD
— Active Directory
MRC
— Monthly Recurring Charge
FASB
— Financial Accounting Standards Board
CRBT
— Caller Ring Back Tone
CU
— Control Unit
AF
— Audio Frequency
STS
— Space Transportation System
911
— Emergency Services Phone Number
MIME
— Multipurpose Internet Mail Extension
PPB
— parts per billion (109)
VAC
— Vacant
FAR
— Federal Aviation Regulation
AFC
— Automatic Frequency Control
YL
— Young Lady
DC
— Disconnected
CRIS
— Carrier Route Information System
ASQC
— American Society for Quality Control's
CDR
— Call-Detail Record
WAP
— Wireless Application Protocol
RNC
— Radio Network Controller
M
— Meter
CMI
— Computer Managed Instruction
ADM
— Add/Drop Multiplexer
ARA
— Apple Remote Access
AES
— Auger Electron Spectroscopy
CM
— Configuration Management
EFF
— Electronic Frontier Foundation
TCP
— Transmission Control Protocol
USB
— Universal Serial Bus
RACON
— Radar Beacon
ECR
— Electronic Cash Register
CMD
— Command
RDP
— Radar Data Processing
ECE
— Economische Commissie voor Europa (United Nations) (Dutch: Economic Commission for Europe)
100BASE-T
— 100 Megabits per second, Baseband, Twisted pair
LCP
— Link Control Protocol
MGMT
— Management
BUS
— Business
AMT
— Amount
AEC
— Architecture, Engineering, Construction
RFI
— Radio Frequency Interference
CRL
— Certificate Revocation List
MAC
— Media Access Control
EAP
— Extensible Authentication Protocol
CIS
— CompuServe Information Service
AVHRR
— Advanced Very High Resolution Radiometer
CFE
— Contractor-Furnished Equipment
NRC
— National Research Council (Canada)
DSTE
— Digital Subscriber Terminal Equipment
NIST
— National Institute of Standards & Technology (US)
CCNA
— Cisco Certified Network Associated
SDH
— Synchronous Digital Hierarchy (ATM)
EW
— Electronic Warfare
AVL
— Available
DFS
— Distributed File System
NBS
— National Bureau of Standards (US)
UHF
— Ultra High Frequency (300-3000 MHz; 1m-10cm)
CIM
— Common Information Model
ROTFL
— Roll On The Floor Laughing
AYT
— Are You There
B2C
— Business-to-Consumer
RU
— Are You?
CRC
— Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
SNR
— Signal-to-Noise Ratio
ATS
— applications technology satellite
BIS
— Bureau of Indian Standards
RSN
— Real Soon Now [which may be a long time coming]
AE
— Application Entity
WB
— Write Back
ASQ
— Alpha System Qualification
ELINT
— Electronic Intelligence Satellite
KHZ
— kilohertz (1000 cycles per second)
BJT
— Bipolar Junction Transistor
CMP
— Connection Management Protocol
NCSA
— National Center for Supercomputing Applications
PVC
— Permanent Virtual Circuit (ATM)
TV
— Television
ACPI
— Advanced Configuration and Power Interface
PABX
— private automatic branch exchange (telephone)
USD
— United States Dollar
BNSC
— British National Space Centre
NIMBY
— Not In My Back Yard
LF
— Low Frequency
FCA
— Free Carrier
ACT
— ACTIVITY, ACTIVITIES
LD
— Long Distance
CSO
— Customer Service Operations
CHAP
— Challenge Handshake Authentication Protocol (ATM)
VTC
— Video Teleconference
CW
— Continuous Wave
FTTB
— Fiber To The Building
APIC
— Advanced Programmable Interrupt Controller
D-RAM
— Dynamic Random Access Memory
ACO
— Additional Call Offering
EMS
— Express Mail Service
FDDI
— Fiber Distributed Data Interface
VR
— Virtual Reality
BCD
— Binary-Coded Decimal
IRS
— Interface Requirements Specification
DTX
— Discontinuous Transmission
PET
— positron emission tomography
BYOD
— Bring Your Own Device
NSA
— National Security Agency
CES
— Consumer Electronics Show
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)
PD
— Public Domain
RPC
— Remote Procedure Call
ECMA
— European Computer Manufacturer's Association
HSDPA
— High-Speed Downlink Packet Access
PE
— Polyethylene
MS
— Millisecond
BAN
— Base Area Network
TCP/IP
— transmission control protocol/internet protocol
FCS
— Frame check sequence (Ethernet)
SMS
— Short Message Service
HSD
— High Speed Data
ATM
— Adobe Type Manager
BIOS
— Basic Input Output System
TCB
— Trusted Computing Base
WORM
— Write-Once, Read-Many
AP
— Application Protocol
I/O
— Input/Output
IPVX
— Internet Protocol version X
BLOS
— Beyond Line-Of-Sight
CAUCE
— Coalition Against Unsolicited Commercial Email
DMA
— direct memory access (computer term)
BG
— Background
JST
— Japan Standard Time
CMC
— Career Management Center
C4
— Command, Control, Communications, and Computers
DRM
— Digital Rights Management
RSVD
— Reserved
ISRO
— Indian Space Research Organisation
PLD
— Programmable Logic Device
EDP
— Electronic Data Processing Plc (London Stock Exchange [LSE])
SML/SMS
— Service Management Layer/Service Management Service
ICMP
— Internet Control Message Protocol
PDU
— Protocol data unit (such as segment, packet, frame, etc.)
RMS
— root mean square (preferred over "RMS")
TAG
— Technical Advisory Group for Biological Control Agents of Weeds
BER
— Bit-Error Rate
OS
— Operating System
ADT
— Abstract Data Type
RCU
— Remote Control Unit
RTU
— Remote Terminal Unit
PWD
— Password
ANI
— Automatic Number Identification (Caller ID)
QI
— Quality Improvement
LP
— Low Pressure
ISAS
— Institute of Space and Astronautical Sciences (Japan)
AMI
— Advanced Metering Infrastructure
EMC
— Electromagnetic Compatibility
ASK
— amplitude shift keying
PPP
— Point-to-Point Protocol
LQC
— Line Quality Control
SIG
— Special Interest Group
MBPS
— Megabits per second
IRDA
— Infrared Data Association
B3ZS
— bipolar 3-zero substitution
BBU
— Baseband Unit
MPLS
— Multi Protocol Label Switching
DOT
— Department of Telecommunications (India)
CFV
— Call For Vote(s)
VBR
— Variable Bit Rate (ATM)
ELF
— Extremely Low Frequency
AXE 10
— Series of electronic telephone exchanges from L.M. Ericsson
EAI
— Enterprise Application Integration
SIT
— Static Induction Transistor
OSI
— Open Systems Interconnection (iso Standard)
NMT
— Nordic Mobile Telephone
GB
— Gigabyte
BOFH
— Bastard Operator From Hell
AIS
— Alarm Indication Signal
AT
— Advanced Technology
RFS
— Request For Service
DOM
— Document Object Model
CFD
— Call For Discussion
MMU
— Memory Management Unit
EGA
— Enhanced Graphics Adapter
MF
— Medium Frequency
SGML
— Standard Generalized Markup Language
CBC
— cipher block chaining
BS
— Base Station
MAC
— Message Authentication Code
QAM
— quadrature amplitude modulation
ADF
— Automatic Direction Finder
IEC
— International Electrotechnical Commission
SP
— Service Provider
YAHOO
— You Are Hazy Over Oranges
OSS
— Operational Support System
CIC
— Circuit Identification Code
SAR
— Specific Absorption Rate
CFD
— computational fluid dynamics
3G
— Third Generation mobile phone network
PDS
— Protected Distribution System
HTTPS
— HyperText Transfer Protocol Secure
PAR
— Precision Approach Radar
PIN
— Personal Identification Number
MDA
— Monochrome Display Adapter
ADP
— Automatic Data Processor
AMHS
— Automated Message Handling System
MCD
— Magnetic Circular Dichroism
IMEI
— International Mobile Equipment Identity
ADC
— Analog-Digital Converter
RSVP
— Resource Reservation Protocol (Internet)
ESTEC
— European Space Research and Technology Centre
LDAP
— Lightweight Directory Access Protocol (pronounced Ell-dap)
ATF
— Advanced Tactical Fighter
CDMA
— Code Division Multiple Access (voice/data transmission)
BECN
— Backward Explicit Congestion Notification
VXML
— Voice eXtensible Markup Language
SLF
— Super Low Frequency
JIS
— Japanese Industrial Standard
LPE
— Liquid Phase Epitaxy
DSA
— Directory System Agent
DCMI
— Dublin Core Metadata Initiative (Online Computer Library Center)
SPC
— Stored Program Control
PCMCIA
— Personal Computer Memory Card International Association
CATV
— Cable Television
RIP
— Routing Information Protocol
CG
— Coast Guard
DMTS
— Distinguished Member Of Technical Staff
CGI
— Computer-Generated Imagery
APS
— Automatic Protection Switching (SONET/SDH)
CAD
— Computer-Aided Design
DSP
— Digital Signal Processor
CHF
— Swiss Franc
CCIS
— Common Channel Interoffice Signaling
CFA
— Carrier Facility Assignment
SOAP
— Simple Object Access Protocol
JPL
— Jet Propulsion Laboratory (California Institute of Technology) (NASA)
CBEMA
— Computer & Business Equipment Manufacturers Association
ACFQ
— Absence Compensation Fair Queuing
WPAN
— Wireless Personal Area Network
STA
— State
VB
— Visual Basic
VAS
— Value Added Services
DCE
— Distributed Computing Environment
GRE
— Generic Routing Encapsulation
CERT
— Computer Emergency Response Team
UPS
— Uninterruptible Power Supply
MIB
— Management Information Base (ATM)
AS
— Autonomous System
TOS
— Type Of Service
RACF
— Resource Access Control Facility
NAS
— Network Access Server
APC
— American Power Conversion
DUP
— Duplicate
TEL
— Telephone
OSPF
— Open Shortest Path First (ATM)
URI
— Uniform Resource Identifier
RH
— Relative Humidity
LR-WPAN
— Low-Rate Wireless Personal Area Network
CA
— Certificate Authority
1000BASE-T
— 1000 Megabits per Second, Baseband, Twisted Pair
LF
— Line Feed
DASD
— Direct Access Storage Device
SCADA
— Supervisory Control And Data Aquisition
OLE
— Object Linking and Embedding (Microsoft communication protocol)
100BASE-T4
— 100 Megabits per Second, Baseband, Four-pair Category 3 UTP cables
COMINT
— Communications Intelligence
NOC
— Network Operations Center
UAS
— Unavailable Seconds
CG
— Center of Gravity (DXS)
ARG
— Argument
LCN
— Logical Channel Number
SXS
— Step-By-Step
DLC
— Digital Loop Carrier
MS
— Mobile Station
ASI
— Asynchronous Serial Interface
JSC
— Johnson Space Center (Houston, TX)
RCC
— Rescue Coordination Center
FCA
— Free Carrier Absorption
E
— Echo Time Zone
HDLC
— High-Level Data Link Control
TLS
— Transport Layer Security
TPDU
— Transport Protocol Data Unit
PRF
— Pulse Repetition Frequency
SIL
— Speech Interference Level
ERP
— Enterprise Resource Management
OCC
— Occupancy
MIS
— Management Information Service
RAD
— Rapid Application Development
SDM
— Service Delivery Management
PPARC
— Particle Physics and Astronomy Research Council
MTSO
— Mobile Telephone Switching Office
TTYL
— Type To You Later
VOL
— Volume
CIM
— Corporate Information Management
AR
— Access Rate
RAN
— Radio Access Network
MOS
— Model Output Statistics
WLAN
— Wireless Local Area Network
MS
— Message Store
TRLR
— Trailer
CIFS
— Common Internet File System
FCW
— Federal Computer Week
CATV
— Community Antenna Television
HF
— High Frequency
STM
— Short Term Memory
DIT
— Directory Information Tree
ITT
— Invitation To Tender
VDS
— Variable Depth Sonar
NESDIS
— National Environmental Satellite, Data, and Information Service
PCI
— Peripheral Component Interconnect
DNIS
— Dialed Number Identification Service
FTTH
— Fiber To The Home
ASTD
— American Society of Training and Development (Alexandria, Virginia)
SW
— South West
CAM
— Computer-Aided Mapping
OTN
— Optical Transport Network
BGP
— Border Gateway Protocol (routing protocol)
BPDU
— Bridge Protocol Data Unit
CAB
— Conformity Assessment Body
TAC
— Technical Assistance Center
MS
— Management System
DTR
— Data Terminal Ready
DS
— Digital Signal
VCC
— Virtual Channel Connection (ATM)
VLF
— Very Low Frequency
VOIP
— Voice Over IP (Internet Protocol)
PAN
— Personal Area Network
MDA
— Model Driven Architecture
LIU
— Line Interface Unit
MMSI
— Maritime Mobile Service Identity
ABBR
— Abbreviation
APM
— Advanced Power Management
UML
— Unified Modeling Language (Object Management Group, OMG)
EPR
— Electron Paramagnetic Resonance
MIC
— Message Integrity Check
SKU
— Stockkeeping Unit
SPA
— Special Prorate Agreement
FC
— Fibre Channel
NSAI
— National Standards Authority of Ireland
DIS
— Distributed Interactive Simulation
AMLCD
— Active Matrix Liquid Crystal Display
DSN
— Deep Space Network - network of large antennas and communication facilities.
RJ-14
— Registered Jack type 14 (2-wire connector)
COO
— Cost of Ownership
YP
— Yellow Pages
NIC
— Network Information Center
ARPU
— Average Revenue Per User
ACR
— Attenuation Crosstalk Ratio
IMSI
— International Mobile Subscriber Identity
MVS
— Multiple Virtual Storage
CEV
— Controlled Environment Vault
EPABX
— Electronic Private Automatic Branch Exchange
IW
— Information Warfare
TB
— Terabyte
ISO
— Independent System Operator (US) (see also TSO) Responsible for grid management, but does not own assets. (electricity)
TKIP
— Temporal Key Integrity Protocol
OD
— Outside Diameter
DT
— DWDM (Dense Wavelength Division Multiplexing) Terminal
WAR
— Weekly Activity Report
ISO
— Infrared Space Observatory
POTS
— Plain Old Telephone Service (FCW)
LLC
— Logical Link Control
ME
— Mobile Equipment
AU
— Audio Unit
AFS
— Andrew File System
LZ
— Landing Zone
AT
— Access Tandem
DCS
— Digital Cross-connect System
OMS
— Optical Multiplex Section
DPC
— Destination Point Code
JVM
— Java Virtual Machine
IV
— Initialization Vector
WLTF
— Wireless LAN (Local Area Network) Task Force
KB
— Kilobyte: One thousand and twenty-four bytes kbps kilo bit per second
DID
— direct inward dial
DUC
— Digital Up-Converter
LLU
— Local Loop Unbundling
STI
— Speech Transmission Index
AFSK
— Audio Frequency Shift Keying
TIA
— Telecommunications Industry Association
CCTA
— Central Computer and Telecommunications Agency
ECPA
— Electronic Communications Privacy Act 1986
EEA
— European Economic Area
IS
— International Standard
CICS
— Customer Information Control System (IBM Mainframe Software; Kicks Or C-I-C-S)
IPX
— Internetwork Packet Exchange
CDS
— Cell Directory Service
PLMN
— Public Land Mobile Network
WAFB
— Wireless Absolute Fairness Bound
AMI
— Alternate Mark Inversion
DMX
— De-MultipleXer
PCM
— Pulse-Code Modulation
RARP
— Reverse Address Resolution Protocol
WG
— Working Group
HSS
— Home Subscriber Server
IMPACT
— Integrated Manufacturing Precision Assembly Cellular Technology
OAM&P
— Operations, Administration, Maintenance & Provisioning
TG
— Task Group
BRA
— Basic Rate Access
FR
— Frame Relay
TCSEC
— Trusted Computer System Evaluation Criteria
IS
— Intermediate System
EHF
— Extremely High Frequency
RT
— Radiotelephone
PAP
— Password Authentication Protocol (ATM)
TM
— Technical Manual
NCS
— National Communications System
MTU
— Maximum Transmission Unit
WMAN
— Wireless Metropolitan Area Network
PDN
— Packet Data Network
COM
— Component Object Model
NIS
— Network Information Service
ADCCP
— Advanced Data Communications Control Procedures
RDF
— Radio Direction Finder
ECN
— Explicit Congestion Notification
CRO
— Central Records Office
NOAO
— National Optical Astronomy Observatories (Tucson, AZ)
OMA
— Open Mobile Alliance
GHZ
— Gigahertz
CC
— Country Code
AEW
— Airborne Early Warning
VOC
— Volatile Organic Compounds (air pollution)
DA
— Destination Address
ARINC
— Aeronautical Radio Incorporated
ISA
— Industry Standard Architecture
IMC
— Intermediate Metal Conduit
RSRQ
— Reference Signal Received Quality
MCSD
— Microsoft Certified Solution Developer
NOTAM
— Notice to Airmen
FAX
— Facsimile
CCD
— Charge Coupled Device - a device for the movement of electrical charge.
SPGA
— Staggered Pin Grid Array
AIFF
— Audio Interchange File Format
SDK
— Software Development Kit (Microsoft)
E
— Energy
IIS
— Internet Information Services
EMR
— Electromagnetic Radiation
APN
— An Access Point Name
ASIC
— application-specific integration circuit
CO
— Certificate of Origin
10BASE-T
— 10 Megabits per second, Baseband, Twisted pair
DDCMP
— Digital Data Communications Message Protocol
ARIN
— American Registry for Internet Numbers
FAT
— File Allocation Table
NLM
— National Library of Medicine (National Institutes of Health)
RJ-25
— Registered Jack type 25 (6-wire connector)
BER
— Basic Encoding Rules (ASN.1)
YABA
— Yet Another Bloody Acronym
DDS
— Digital Data Service
EAC
— Engineering Accreditation Commission
MHS
— Microwave Humidity Sounder
2W
— Two Wire
SEM
— Space Environment Monitor
ASR
— Automatic Speech Recognition
TDOA
— Time Difference Of Arrival
NFPA
— National Fire Protection Association
CBDS
— Connectionless Broadband Data Service
SVC
— Scalable Video Coding
VM
— Virtual Machine
OAS
— Organization of American States
DIBL
— Drain-induced Barrier Lowering
MME
— Mobility Management Entity
SSM
— Source-Specific Multicast
SCTP
— Stream Control Transmission Protocol
CLNP
— ConnectionLess-mode Network Protocol
OTS
— Optical Transmission Section
AOI
— Area Of Interest
IEEE-SA
— Institute of Electrical and Electronics Engineers - Standards Association
CS
— Cable Select
DAP
— Directory Access Protocol
CAV
— Constant Angular Velocity
NMS
— Network Management System
CAC
— Carrier Access Code
ECT
— Explicit Call Transfer
CPN
— Cisco Powered Network
PTP
— Point to Point Transmission Service (electricity)
IRLAN
— Infrared LAN
GOS
— Grade Of Service
CSA
— Canadian Standards Association (like UL)
CPS
— Cycles Per Second (now Hertz)
LSF
— Line Spread Function
CGM
— Computer Graphics Metafile
AML
— Amplitude Modulated Link
BSA
— Business Software Alliance
EC
— European Community
PKI
— Public Key Infrastructure (cryptography)
MCU
— Multipoint Control Unit
ESS
— Electronic Switching System
UA
— User Agent
RCV
— Receive
ES
— Errored Second
CBP
— Coded Block Pattern
ADEOS
— ADvanced Earth Observing Satellite (Japan)
DVMRP
— Distance Vector Multicast Routing Protocol
PAL
— Programmable Array Logic
MMB
— Middle Mouse Button
BT
— BlueTooth
ATSR
— Along-Track Scanning Radiometer
ISI
— Inter-Symbol Interference
COMJAM
— Communications Jamming
RTS
— Request To Send
GDM
— GSM (Global System for Mobile communications) Data Module
ADL
— Advanced Distributed Learning
FCP
— Fibre Channel Protocol
CF
— Compact Flash
HDSL
— High-bit-rate Digital Subscriber Line
MSRN
— Mobile Station Roaming Number
RCS
— Radar Cross Section
LPC
— Linear Predictive Coding
CABS
— Carrier Access Billing System
ARQ
— Automatic Repeat-reQuest
WPM
— speech--words per minute
WS
— Workstation
CAN
— Campus Area Network
EX
— Exercise
NLMS
— Normalized Least Mean Square
FXO
— Foreign Exchange Office
MCA
— Micro Channel Architecture
LSR
— Local Service Request
VOD
— Video On Demand
FEC
— Forward Error Correction
NTFS
— New Technology File System
VLL
— Virtual Leased Line
SVD
— Singular Value Decomposition
MPEG
— Motion Picture Experts Group
IRQ
— Interrupt Request
IDT
— Integrated Digital Terminal
NE
— North-East
ZIP
— Zone Information Protocol
MSU
— Microwave Sounding Unit
MC
— Message Center
3GPP
— Third Generation Partnership Project
UAN
— Universal Access Number
ADF
— automatic document feeder
RP
— Reference Point
CC
— Call Control
MAJ
— Major
AAF
— Advanced Authoring Format
CAVE
— Cellular Authentication and Voice Encryption Algorithm
BS
— Beam Splitter
EGP
— Exterior Gateway Protocol
ODBC
— Open Database Connectivity
AMPS
— Advanced Mobile Phone System
DX
— Duplex
MIT
— Massachusetts Institute of Technology (U.S.)
EMS
— Enhanced Messaging Service
COAX
— Coaxial
ABN
— Abnormal
DRFM
— Digital Radio-Frequency Memory
ECAC
— European Civil Aviation Conference
STP
— Spanning Tree Protocol
BOC
— Bell Operating Company
RSS
— Really Simple Syndication
KDC
— Kerberos Key Distribution Center
AAV
— Accountholder Authentication Value
M
— Management
TCR
— Temperature Coefficient of Resistance
DDN
— U.S. Defense Data Network
TE
— Traffic Engineering
RRN
— Routing Recording Number
CTS
— Clear To Send
WTLS
— Wireless Transport Layer Security
F
— Fellow
AFP
— AppleTalk Filing Protocol
SHF
— Super High Frequency
ATS
— Automatic Transfer Switch
DSS
— Digital Signature Standard
ELT
— Emergency Locator Transmitter
TWT
— Traveling Wave Tube
ESF
— Edge Spread Function
FUP
— Fair Use Policy
GDS
— Global Distribution System
NI
— Network Interface
B-ISDN
— Broadband Integrated Services Digital Network
SPADATS
— Space Detection And Tracking System
SLP
— Service Location Protocol
TS
— Technical Specification
SATAN
— Security Administrator Tool for Analyzing Networks
OLAP
— Online Analytical Processing
DCP
— Design Change Package
ACAP
— Application Configuration Access Protocol
PUB
— Publication (file name extension)
MD
— Mediation Device
CD
— Critical Dimension
NCP
— Network Control Protocol
ASR
— Access Service Request
BERT
— Bit Error Rate Tester (telecommunication)
NNTP
— Network News Transfer Protocol
SM
— Senior Member
AMSS
— Automatic Message Switching System
AAS
— Adaptive Antenna System
TOP
— Technical Office Protocol
P
— Predicted
WCDMA
— Wideband Code Division Multiple Access
HEHO
— Head End Hop Off
UL
— Uplink
WK
— Week
DCN
— Disconnect
FMC
— Fixed Mobile Convergence "Mobile UC or Unified Communications over Wireless"
PSD
— Phase-Sensitive Detector
CU
— Channel Unit
E&M
— ear and mouth (special signaling leads)
SDLC
— Synchronous Data Link Control
AMR
— Automated meter reading also known as Automatic Meter Reading
LEN
— Line Equipment Number
TO
— Technical Order
BCH
— Binary Coded Hexadecimal
SDHLR
— Super-Distributed Home Location Register
SA
— Scientific American
MCC
— Mission Control Center (JSC)
TEC
— Total Electron Content
EMCON
— Electromagnetic Emission Control
DID
— data item description
SDP
— Session Description Protocol
MSE
— Mobile Subscriber Equipment
TELECOMMUTE
— Telecommuting
DMARC
— Demarcation point
OSTP
— Office of Science and Technology Policy
AFM
— Atomic Force Microscopy
SBC
— Session Border Controller
DSLAM
— Digital Subscriber Line Access Multiplexer (Module)
MPI
— Message Passing Interface
ARC
— Army Reuse Center
IN
— Intelligent Network
TI
— Time Interval
POE
— power over ethernetinjector
SYM
— Symmetric
QPSK
— aeronautical quadrature phase shift keying
CSAT
— Customer Satisfaction
CDA
— Command and Data Acquisition
HSCSD
— High-Speed Circuit-Switched Data
SMI
— Structure of Management Information
BACP
— Bandwidth Allocation Control Protocol
EMS
— Element Management System (ATM)
YYP
— Yahoo Yellow Pages
VOP
— Voice Over Packet
OTA
— Office of Technology Assessment (U.S.; abolished by Congress, Fall 1995)
SOS
— Save Our Souls (Help!)
PTA
— Pakistan Telecommunication Authority
SAR
— synthetic aperture radar (satellite)
ITP
— Interactive Telecommunications Program
TCPA
— Telephone Consumer Protection Act
SPI
— Service Provider Interface
IP
— Intelligent Peripheral
LRC
— Learning Resource Center
SONET
— Synchronous Optical Network
CT
— Computer Telephony
ECM
— Electronic Counter Measures
TBD
— To Be Decided
STP
— Signal Transfer Point
ADT
— American District Telegraph Company
IAB
— Internet Architecture Board
PIM
— Personal Information Manager
ACT
— Activity
DSN
— Defense Switched Network
CSPRM
— Common Signaling Protocols Resource Module
PDC
— Personal Digital Cellular
CO
— Central Office
ORB
— Object Request Broker
TLC
— The Learning Channel
ACLR
— Adjacent Channel Leakage Ratio
FSK
— Frequency-Shift Keying
STK
— Satellite Tool Kit
FA
— Functional Area
DIS
— Draft International Standard
LNP
— Local Number Portability
LEP
— Large Electron Positron
DTD
— Document Type Definition (XML)
TDMA
— Time Division Multiple Access
4W
— Four-Wire
TXM
— Transmission X-ray Microscope
PGA
— Programmable Gate Array
ADB
— Apple Desktop Bus
EAS
— Extended Area Service
VRML
— Virtual Reality Modeling Language
KAK
— Key-Auto-Key
NSS
— Network Switching Subsystem
NE
— Network Element
IS
— Information System
SCP
— Service Control Point
SLAM
— Scanning Laser Acoustic Microscope
PROM
— Programmable Read-Only Memory
EIP
— Equipment installation procedure
ACF
— Access Control Field
SRS
— Software Requirements Specifications
TOS
— Temporarily Out of Service
IEEE-CS
— Institute of Electrical and Electronics Engineers Computer Society
CPS
— characters per second
CMT
— Cadmium Mercury Telluride
HEX
— Hexadecimal (base 16)
ROSAT
— Roentgen Satellite
SML
— Service Management Layer
TE
— Terminal Equipment
EFS
— Encrypting File System
FITS
— Flexible Image Transport System
WWAN
— Wireless Wide Area Network
NCSC
— National Computer Security Center (NSA)
FR PVC
— Frame Relay Permanent Virtual Connection
NRPB
— National Radiological Protection Board
CDE
— Common Desktop Environment
SD
— Software Development
OC
— Optical Carrier
ISOC
— Internet Society
B6ZS
— Bipolar 6 Zero Substitution
BIU
— Bus Interface Unit
CFNRY
— Call Forwarding on No Reply
VGA
— Video Graphics Array
NTP
— Network Time Protocol
DBS
— Direct Broadcast Satellite
TN
— Telephone Number
CAL
— Calorie
DII
— Defense Information Infrastructure
JCL
— Job Control Language
TRMM
— Tropical Rainfall Measuring Mission (US-Japan)
BELLCORE
— Bell Communications Research, Inc.
JTF
— Joint Task Force
AP
— access point
VC
— Virtual Channel
PVD
— Physical Vapor Deposition
STN
— Station Casinos, Inc.
IESG
— Internet Engineering Steering Group
DCS
— Digital Cross-Connect
MSR
— Microwave Scanning Radiometer
AUI
— Attachment Unit Interface
FLM
— First Line Maintenance
LU
— Logical Unit
CODASYL
— COnference on DAta SYstems Languages
LT
— Line Termination
AUD
— Audit
WWAN
— wireless wide-area network
Y
— Yttrium
LQR
— Linear Quadratic Regulator
TOA
— Time Of Arrival
MLP
— Mobile Location Protocol
BIP
— Band Interleaved by Pixel
CAMA
— Centralized Automatic Message Accounting
ATC
— Advanced Technology Center
PEM
— Privacy-Enhanced Mail
VSAT
— Very Small Aperture Terminal (satellite service)
MP
— Multilink Protocol
SITA
— Société Internationale de Télécommunications Aéronautiques
BOD
— Bandwidth on Demand
PUK
— PIN (Personal Identification Number) Unlocking Key
JRE
— Java Runtime Environment
SUS
— Suspension
DSCP
— Differentiated Services Code Point
FE
— Finite Element
DVP
— Digital Voice Privacy
DID
— Digital Information Display
CAPS
— Call Attempts Per Second
Y
— Yes
CAC
— Connection Admission Control (Asynchronous Transfer Mode)
FAA
— Federal Aviation Agency
MUSIC
— MUltiple SIgnal Classification
LFACS
— Loop Facility Assignment and Control System
4GL
— Fourth-Generation Language
4 GIG
— 4 Giga Intellectual Gadget
JDK
— Java Development Kit
SVC
— Switched Virtual Connection
FE
— Far End
FEP
— Front End Processor
DISA
— U.S. Defense Information Systems Agency
CI
— Common Interface
DAT
— Digital Audio Tape
TTY
— Teletype Telex Machine
CTU
— Central Terminal Unit
WINS
— Windows Internet Name Service
CBR
— Constant Bit Rate
B2B
— Business-to-Business
DNIC
— Data Network Identification Code
VLSI
— Very-Large-Scale Integration
IRS
— Inertial Reference System
TPC
— The Phone Company
EIGRP
— Enhanced Interior Gateway Routing Protocol
EIA
— Extended Interaction Amplifier
FWA
— Fixed Wireless Access
DAL
— Dedicated Access Line
RT
— Remote Terminal
EULA
— End User License Agreement (usually in reference to software)
AIN
— Advanced Intelligent Network
DW
— Deep Water
EST
— Establish
ETS
— European Telecommunication Standard
CVD
— Chemical Vapor Deposition
TDM
— Time Division Multiplexer
TRM
— Technical Reference Model
SCN
— Switched Circuit Network
WPS
— Wireless Priority Service
OPC
— Originating Point Code
MCP
— Microsoft Certified Professional
ECP
— Encryption Control Protocol
A
— Anode
TTL
— ToS and Time-to-Live
AMPS
— Advanced Mobile Phone Service (cellular phone standard)
SEC
— Software Engineering Center
TCIC
— Trunk Circuit Identification Code
CODEC
— Coder/decoder
IEEE
— Institute of Electrical and Electronics Engineers
1-ESS
— x-ESS series of Electronic Switching Systems
AWACS
— Airborne Warning And Control System
SAN
— System Area Network
BTAM
— Basic Telecommunications Access Method
SLIP
— Serial Line Internet Protocol
PDS
— Planetary Data System
NREN
— National Research and Education Network
1FB
— Single line, Flat Business rate;
ACC
— Area Control Center
WHT
— Walsh-Hadamard Transform
RAU
— Radio Access Unit (Army)
TDD
— Telecommunications Device for the Deaf
MEID
— Mobile Equipment Identifier
CER
— Cell Error Ratio
STN
— Station
DEC
— Decimal
ARPANET
— ARPA Network
WAIS
— Wide Area Information Server
CNM
— Customer Network Management
HLR
— Home Location Register
IPOATM
— Internet Protocol over ATM
ISM
— Industrial, Scientific and Medical
TE
— Test Equipment
RA
— Risk Analysis
EMEA
— Europe, Middle East and Africa
COPS
— Common Open Policy Service
OT
— Office of Telecommunications
ASARS
— Advanced Synthetic Aperture Radar System
LISP
— List Processing Language
AFOSR
— Air Force Office Of Scientific Research(USA)
SINAD
— SIgnal-to-(Noise And Distortion) ratio
BHCA
— Busy Hour Call Attempt
COMDEX
— Computer Dealers Exposition
BTC
— Botswana Telecommunications Corporation
DCE
— Data Communication Equipment
TL1
— Transaction Language 1
DMS
— Data Management System
MOL
— Manned Orbiting Laboratory
GSM
— Groupe Speciale Mobile
BNC
— Bayonet Neill-Concelman
FTAM
— File Transfer Access and Management
BIS
— Business Information System
DL
— Digital Library
UTP
— unshielded twisted pair
E2E
— End-to-End
SPD
— Serial Presence Detect
ASN.1
— Abstract Syntax Notation One
SMB
— Server Message Block
MX
— Mixer
IAD
— Integrated Access Device
NDVI
— Normalized Difference Vegetation Index
VMS
— Virtual Memory System
DCS
— Digital Cellular System
CIAC
— Computer Incident Advisory Capability
NNM
— Network Node Manager
C
— Cost
DN
— Distinguished Name
SL
— Single Line
DER
— Distinguished Encoding Rules
FEXT
— Far-End Cross Talk
VT
— Virtual Terminal
PIC
— Peripheral Interface Controller
TMSI
— Temporary Mobile Subscriber Identity
VF
— Voice Frequency
RSS
— root-sum-square
EMI
— Electro-Magnetic Interference
AN
— Access Node
RLU
— Remote Line Unit
RGN
— Region
CLEC
— Competitive Local Exchange Carrier
B3G
— Beyond Third Generation
GBPS
— Gigabits per second
DUA
— Directory User Agent
BAN
— Billing Account Number
EBS
— Electron Bombarded Silicon
VBA
— Visual BASIC for Applications
ATA
— Analog Telephone Adapter
RMI
— Remote Method Invocation
ASE
— Application Service Element
ETSI
— European Telecommunications Standard Institute
ADN
— Abbreviated Dialing Number
EBCDIC
— Extended Binary-Coded Decimal Interchange Code
MOD
— Modify
PDT
— Portable Data Terminal
TELNET
— Telecommunications Network Protocol
QI
— Quality Indicator
METRO
— Metropolitan
SMPTE
— Society of Motion Picture and Television Engineers, Inc.
RACH
— Random Access Channel
IRTF
— Internet Research Task Force
DPL
— Digital Private-Line
QDR
— Quad Data Rate
NAT
— Network Address Translation
SMDS
— Switched Multimegabit Data Service (ATM)
TTY
— teletype terminal
IDF
— Independent Distribution Frame
MRT
— Medical Response Team
DCS
— Data Collection System (NOAA Polar Orbiting Satellites)
CLETS
— California Law Enforcement Telecommunication System
IAT
— Integrated Access Terminal
ASDE
— Airport Surface Detection Equipment
TDD
— Time Division Duplex
FEM
— Finite Element Method
TSR
— Telecommunications Service Request
LT
— Less Than
MTP
— Message Transfer Part
DC
— Display Controller
BLER
— Block Error Rate
BCDIC
— Binary Coded Decimal Interchange Code
PE
— Probable Error
DL
— Data Link
SIL
— Solid Immersion Lens
TFTP
— Trivial File Transfer Protocol (ATM)
CRLF
— Carriage-Return Line-Feed
CB
— Common Battery
RT
— Response Time
LPD
— Low Probability of Detection
NIC
— Network Interface Controller
IV&V
— independent verification and validation
SA
— Source Address
SPA
— Software Publishers Association
FTNS
— Fixed Telecommunications Network Services
PM
— Phase Modulation
DVB
— Digital Video Broadcasting
PG
— Page
ASA
— Acoustical Society of America
SWAP
— Shared Wireless Access Protocol
VPI
— Virtual Path Identifier
CSPDN
— Circuit Switched Public Data Network
COAM
— Customer Owned And Maintained
PP
— Polypropylene
DPDU
— Data Protocol Data Unit
OTDOA
— Observed Time Difference of Arrival
MBWA
— Mobile Broadband Wireless Access
CDR
— Clock and Data Recovery
AM
— Activity Manager
AIT
— Automatic Identification Technology
DS-0
— Digital Signal, Level 0
CNG
— Fax Calling Tone
DEMUX
— Demultiplexer
REA
— Rural Electrification Administration (US)
FEP
— Front-End Processor
Q
— Quadrature
2W
— 2-Wire
SDSL
— Symmetric Digital Subscriber Line
DPL
— Digital Power Line
OOP
— Object-Oriented Programming
EFIS
— Electronic Flight Information System
LRC
— Longitudinal Redundancy Check
TTY
— Text Teletype
RMS
— Resource Management System
NPA
— Numbering Plan Area
IMAP
— Internet Mail Access Protocol
SDP
— Software Development Plan
BCH
— Bose-Chaudhuri-Hocquenghem Coding
POP
— Post Office Protocol
CVR
— Crystal Video Receiver
CCIR
— International Radio Consultative Committee (French Acronym)
OWS
— Operator Work Station
MSI
— Maritime Safety Information
NES
— Network Encryption System
SNA
— System Network Architecture
T
— Temperature
SFX
— Special Effects
VQV
— Voice Quality Value
BBM
— Blackberry Messenger
SISIR
— Singapore Institute of Standards and Industrial Research
RADIUS
— Remote Authentication Dial-In User Service
BSS
— Base Station Subsystem
DPSK
— Differential Phase Shift Keying
RPV
— Remotely Piloted Vehicle
CDC
— Connected Device Configuration
BSS
— Basic Service Set
VPA
— Valid Peripheral Address
PS
— Product Specification
LATA
— Local Access and Transport Area
AIF
— Audio Interchange Format
AC
— Area Code
RDI
— Remote Defect Indicator (UNI Fault Management)
L2TPV3
— Layer 2 Tunneling Protocol Version 3
NTU
— Network Termination Unit
TOVS
— TIROS Operational Vertical Sounder
VOA
— Voice Of America
EIR
— Equipment Identity Register
E
— Echo
DL
— Definition List
HW
— Hardware Wars
LSI
— Large Scale Integration -> VLSI
FITL
— Fiber-In-The-Loop
PMP
— Project Management Professional
SF
— Single Frequency
LAG
— Link Aggregation Group
FMS
— Fraud Management System
IPCP
— Internet Protocol Control Protocol
NWK
— Network
CP
— Change Proposal
BSID
— Base Station Identity
ESP
— Encapsulating Security Payload
MFLOPS
— Millions of Floating Point Operations per Second
SAI
— Serving Area Interface
DNU
— Do Not Use
AS
— Access System
CMOS
— Complementary Metal Oxide Semiconductors
ASYNC
— Asynchronous
CHTML
— Compact Hypertext Markup Language
CGSA
— Cellular Geographic Service Area
AF
— Assured Forwarding
OSF
— Open Software Foundation
BSI
— British Standards Institution
APDU
— Application Protocol Data Units
IPLC
— International Private Leased Circuit
CGI
— Cell Global Identity
CQA
— Certified Quality Auditor
NIU
— Network Interface Unit
CAM
— Content Addressable Memory
LDP
— Label Distribution Protocol
ROW
— Rest Of World
KSU
— Key Service Unit
4G
— Fourth Generation Wireless Systems
TIFF
— Tag Image File Format
BS
— Broadcast Satellite
DM
— Domain Model
PRI
— Priority
DCA
— Dynamic Channel Assignment
FOSE
— Federal Office Systems Exposition
DUV
— Deep Ultraviolet
FRS
— Frame Relay Service
VHSIC
— Very High-Speed Integrated Circuit
IOC
— Inter-Office Channel
AAS
— advanced automation system (FAA)
ER
— Extended Range
FH
— Frequency Hopping
RECON
— Reconnaissance
TCM
— Trellis-Coded Modulation
DTMF
— Dual-Tone MultiFrequency
RSS
— Radio Service Software (Motorola)
DDL
— Digital Data Link
GMRS
— General Mobile Radio Service
ES
— Emergency Service
C
— Collector
VT
— Vacuum Tube
SPM
— Scanning Probe Microscope
RISC
— Reduced Instruction Set Computing
SCCP
— Signalling Connection Control Part
UP
— User Profile
MDM
— Mobile Device Management
CCLC
— Carrier Common Line Charge
SFN
— Single Frequency Network
DII
— Dynamic Invocation Interface
SCO
— Synchronous Connection Oriented
EU
— End User
OSP
— Outside Plant
EIR
— Excess Information Rate
TLK
— Talk
BMEWS
— Ballistic Missile Early Warning System (bee-mews)
2G
— Second Generation Wireless Systems
ALT
— Accelerated Life Test
CIP
— Continuous Improvement Program
PC
— Peripheral Controller
GDK
— GIMP (GNU Image Manipulation Program) Drawing Kit
SIMT
— Système interbancaire marocain de télécompensation
DACS
— Digital Access Cross-connect System
DBRNC
— deciBel Relative to Noise in a Circuit
CIRC
— Cross-Interleaved Reed-Solomon Code
TC
— Transmission Convergence (ATM)
DISN
— Defense Information Systems Network
SWBD
— Switchboard
ANC
— Access Network Controller
DFG
— difference-frequency generation
CB
— Citizens' Band
PBT
— Polybutylene Terephthalate
CMIP
— Common Management Information Protocol (ATM)
DHD
— Dial Home Device
FRAD
— Frame Relay Access Device
E
— Electra
EM
— Electromigration
BDE
— Borland Database Engine
LD
— Laser Diode
SS1
— Signalling System 1 (500/20 Hz tones)
CONUS
— Contiguous United States
HFC
— Hybrid Fiber/Coaxial network
PIC
— Programmable Interrupt Controller
ODS
— Operational Data Store (knowledge management)
IRC
— International Record Carrier
NAS
— Network-Attached Storage
CS
— Convergence Sublayer (ATM)
OBC
— Onboard Computer
FDL
— Facility Data Link
SIM
— Subscriber Identity Module
TD-CDMA
— Time Division - Code Division Multiple Access
NDIS
— Network Driver Interface Specification (Microsoft Windows NT)
MHO
— My Humble Opinion
BS
— Backing Store
SG
— Signaling Gateway (IETF)
SB
— Switchboard
CPC
— Continous Packet Compression
FRS
— Family Radio Service
FDTD
— Finite Difference Time Domain
O/S
— Operating System
JAN
— Joint Army-Navy
IPR
— Intellectual Property Right
W-CDMA
— Wideband Code Division Multiple Access
ESCA
— photoelectron spectroscopy for chemical analysis
RX
— Receive
ACSE
— Association Control Service Element
ANSI-41
— ANSI standard for mobile management
IRF
— Impulse Response Function
#
— Number sign, octothorp; special function key
IEC
— Interexchange Carrier
SVC
— Switched Virtual Circuit (ATM)
CGA
— Carrier Group Alarm
DMI
— Distributed Management Interface
XPS
— X-Ray Photoelectron Spectroscopy
BSS
— Base Station System
LSW
— Least Significant Word
PCI
— Personal Computer Interface
UART
— Universal Asynchronous Receiver/Transmitter
SMR
— Specialized Mobile Radio
FECN
— Forward Explicit Congestion Notification (ATM)
SZ
— Seizure
VLAN
— Virtual Local Area Network
DOR
— Detailed Outage Report
HTML
— Hyper-Text Markup Language
TDRSS
— Tracking and Data Relay Satellite System
RADINT
— Radar Intelligence
MV
— Motion Vector
3G
— 3rd Generation Wireless Format
CP
— Cell Phone
IPS
— InPlane Switching
PU
— Physical Unit (IBM)
EA
— Extended Address Field Bit
MSW
— Most Significant Word
SIL
— Silence
STD
— Subscriber Trunk Dialing
SAS
— Special Access Surcharge
CES
— Circuit Emulation Service
PVC
— Permanent Virtual Connection
ST
— Such That
F
— Frequency
CAP
— Capability
MIDP
— Mobile Information Device Profile
CCR
— Customer Controlled Reconfiguration (Sprint)
GTP
— GPRS (General Packet Radio Service) Tunneling Protocol
TOP
— technical/office protocol
DTN
— Data Transfer Network
DDD
— Direct Distance Dialing
DTU
— Data Transfer Unit
SCM
— Single-Carrier Modulation
ADC
— Access Deficit Charge
DLCI
— data link connection identifier
GBT
— Ground Based Tower
FDD
— Frequency Division Duplex
CALEA
— Communications Assistance for Law Enforcement Act
CIS
— Computer and Information Science
NII
— National Information Infrastructure (USA)
ISG
— Information Systems Group
CGA
— Color Graphics Adapter
FSK
— Frequency Shift Keying
3-D
— 3-Dimensional
RCC
— Radio Common Carrier
WSFL
— Web Services Flow Language
OSS
— Operations Support System
DPCM
— differential pulse code modulation
ACP
— Access Control Point
ADC
— Administration Center
TAD
— Telephone Answering Device
DM
— Differential Mode
LOO
— Likelihood of Occurrence
YA
— Yet Another
BMS
— Business Management System
CGI
— Computer Graphics Interface
ESPN
— Entertainment and Sports Programming Network
IT
— Integration Test
TSO
— Telecommunications Service Order
ZCZ
— Zero Correlation Zone
ARSR
— Air Route Surveillance Radar
ALB
— Analog Loopback
MTD
— Moving Target Detection
WSDL
— Web Services Description Language
L2F
— Layer 2 Forwarding protocol
CCA
— Carrier-Controlled Approach
VESA
— Video Electronics Standards Association
CAM
— Computer-Aided Manufacturing
IWF
— Interworking Function
CNG
— comfort noise generation
RJE
— Remote Job Entry
RDS
— Rate Determining Step
DFE
— Design For Environment
ACF
— Advanced Communications Function (IBM)
SRM
— Scalable Reliable Multicast
BY
— Busy
PSN
— Packet Switched Network
OSCAR
— Orbiting Satellite Carrying Amateur Radio
ACE
— Adaptive Communication Environment
FHSS
— Frequency Hopping Spread Spectrum
TRS
— Trunked Radio Systems
SSM
— Synchronization Status Message
RM-ODP
— Reference Model for Open Distributed Processing
RLS
— Recursive Least Squares
TAM
— Telephone Answering Machine
MAI
— Multiple Access Interference
CLDC
— Connected Limited Device Configuration
IPM
— Inches Per Minute
COO
— Cell of Origin
NTE
— Network Terminating Equipment
ATS
— Air Traffic Services
NTDS
— Naval Tactical Data System
CPC
— Calling Party Control
VTS
— Vessel Traffic Service
WTP
— Wireless Transaction Protocol
WAYP
— White and Yellow Pages
SYSADM
— System Administrator
SPX
— Sequenced Packet Exchange
CRB
— Cramer-Rao Bound
BHCA
— Busy Hour Call Attempts
LP
— Line Pair
FTTC
— Fiber To The Curb光纤到路边
SQ
— Service Quality
NAK
— Negative Acknowledge
SAF
— System Access Fee
TMS
— Time Management System
LAAS
— Local Area Augmentation System
CSC
— Common Signaling Channel
CLK
— Clock
TACACS
— Terminal Access Controller Access Control System
PAM
— Payload Assist Module
LCR
— Least Cost Routing
TRS
— Telecommunications Relay Service
MTS
— Message Transfer System
SDU
— Signal Distribution Unit
TSE
— Toronto Stock Exchange
PUC
— Public Utility Commission (electricity)
DDU
— Disk Drive Unit
BWD
— backward
MLM
— Multi-Longitudinal Mode
TSB
— Telecommunication Standardization Bureau
MEAS
— Measure
DIV
— Divisionsion
CIP
— Carrier Identification Parameter
FGD
— Feature Group D
DAS
— Data Acquisition System
IS 41
— Interim Standard 41 (Inter-Cellular Network Communication Protocol)
CS
— Central Station
LASA
— Large Aperture Seismic Array
SETI
— Search for Extraterrestrial Intelligence
IG
— Interface Group
DAP
— Distributed Array Processor
M/W
— MicroWave
DMI
— Desktop Management Interface (computing)
SRR
— Search and Rescue Region
PSS
— Performance Support System
LIS
— Lightning Imaging Sensor
ERL
— Echo Return Loss
CMRS
— Commercial Mobile Radio Service
AWT
— Agence Wallonne des Télécommunications
CS-PDU
— Convergence Sublayer - Protocol Data Unit
TOMS
— Total Ozone Mapping Spectrometer (satellite Instrument)
SIA
— Securities Industry Association
BOSS
— Binary Object Storage System
WIS
— WAN (Wide Area Network) Interface Sublayer
UMA
— Unlicensed Mobile Access
DDLD
— Direct Dial Long Distance
EMR
— Electromechanical Relay
DLP
— Data Link Processor
TCP/IP
— Transmission Control/Internet Protocol
MSC
— Mobile Switching Center
ASAR
— Advanced Synthetic Aperture Radar
EVA
— Electronic Video Agent
AFI
— Authority and Format Identifier
MMC
— Microsoft Management Console (Microsoft)
NA
— Network Adapter
ADPCM
— Adaptive Differential Pulse Code Modulation
SNIX
— Single Noise Interference Xterminator
ETF
— Early Termination Fee
EGSM
— Extended Global System for Mobile Communications
OXCO
— Oven-Controlled Crystal Oscillator
SM
— Service Module
NCC
— Network Control Center (GSFC)
NW
— North West
ABM
— Asynchronous Balanced Mode
P
— Priority
PTO
— U.S. Patent And Trademark Office
SR
— Slow Release
SM OFC
— Single-Mode Optical Fiber Cable
FEA
— Finite Element Analysis
BAN
— Building Area Network
COM
— Comedy Central
FAS
— Frame Alignment Signal
NEMP
— Nuclear Electromagnetic Pulse
NCAR
— National Center for Atmospheric Research (US)
AVR
— Automated Voice Response
SCPC
— single channel per carrier
S/D
— Source/Drain
WDA
— Wireless Digital Assistant
SPIN
— Service Provider Identification Number
3GPP
— Third-Generation Partnership Project
BUFR
— Binary Universal Form for the Representation (of data)
AP
— Action Point
DARTS
— Design Approach for Real-Time Systems
IPS
— Instructions Per Second
VG
— Voice Grade
SN
— Service Number
DEM
— Digital Elevation Model
CBWFQ
— Class Based Weighted Fair Queueing
STD
— Secondary Telecom District
DA
— deca
HUP
— Hook-UP
SAT
— Satellite
DSI
— Digital Speech Interpolation
NDS
— Novell Directory Services
TDR
— Time-Domain Reflectometry
*
— Star, special function key
SIP
— Session Initiation Protocol
SSMA
— Spread-Spectrum Multiple Access
AMA
— automatic message accounting
OOK
— On/Off Keying
BA
— Behaviour Aggregate
CSU
— Channel Service Unit
CCITT
— Comit? Consultatif International T?l?graphique et T?l?phonique
2G
— Second generation cellular
RDMA
— Remote Direct Memory Access
NSAP
— Network Service Access Point
MNP
— Mobile Number Portability
CT
— Computer Terminal
V
— Variable
SSM
— Spread Spectrum Modulation
KSPS
— KiloSymbols Per Second
PNP
— Plug-and-Play
CCNA
— Cisco Certified Network Administrator
EBIC
— Electron Beam Induced Current
FGA
— Feature Group A
WDN
— Wireless Developer Network
DTI
— Digital Trunk Interface
SLV
— Satellite-Launch Vehicle
REPT
— Report
EDFA
— Erbium-Doped Fiber Amplifier
BUS
— Broadcast and Unknown Server
LDN
— Local Directory Number
SCCP
— Signaling Connection Control Point
CPG
— Converged Packet Gateway
DOCSIS
— Data over Cable Service Interface Specification
CAM
— Common Access Method
ADCCP
— Advanced Data Communication Control Procedures
SLIC
— Subscriber Line Interface Circuit
B8ZS
— Binary Eight Zero Substitution
LFTYR
— Ley Federal de Telecomunicaciones y Radiodifusión
DAC
— Digital-To-Analog Converter
DCF
— Distributed Coordination Function
BCS
— British Computer Society
4WA
— Four Wire Analog
AAL5
— ATM (Asynchronous Transmission Mode) Adaptation Layer 5
CP
— Call Processing
PARC
— Palo Alto Research Center
CND
— Calling Number Display
PSNEXT
— Power Sum Near End Cross Talk
ILEC
— Incumbent Local Exchange Carrier
STM
— Synchronous Transfer Mode
COT
— Central Office Terminal
EDSX
— Electronic Digital Signal Cross-Connect
3GSM
— Third-generation Global System for Mobile (communications)
INE
— Intelligent Network Element
CE
— Channel Element
CTI
— Computer Telephony Integration
RDBMS
— Relational Data Base Management System (Oracle)
LUNT
— Line Unit Network Termination
SD
— Speed Dial
DNC
— Do Not Call
UAT
— Universal Access Transceiver
RSL
— Restricted Service License
RXQUAL
— Received Signal Quality
BORSCHT
— Battery feed, Overvoltage protection, Ringing, Signaling, Coding, Hybrid, and Testing
DGPT
— Directorate General of Posts and Telecommunications
SSRC
— Synchronization Source
ALI
— Automatic Location Information
BDSL
— Broadband Digital Subscriber Line
PTM
— Packet Transport Mode
3G
— Third Generation (mobile communication system)
LIM
— Line Isolation Monitor
XC
— Cross-Connect
IMP
— Interface Message Processor
DICOM
— Digital Imaging and Communications in Medicine
VPX
— Virtual Path Cross-Connect
VCI
— Virtual Channel Identifier
TUR
— Trunk Utilization Report
PWM
— Pulse width modulation
PTP
— Point To point Protocol
DLU
— Digital Line Unit
TAX
— Trunk Automatic Exchange
OODBMS
— Object-Oriented Database Management Systems
TM
— Thematic Mapper (Landsat)
CEPT
— Conférence Européenne des Administrations des Postes et des Télécommunications
ARM
— Asynchronous Response Mode
HSPA
— High Speed Packet Access
SN
— Stock Number
ELFEXT
— Equal-Level Far-End Cross-Talk
WNMS
— Wireless Network Management System
MC/MIC
— Mode Common/Mode Indicate Common
ARCNET
— Attached Resource Computer Network
UMTS
— Universal Mobile Telecommunication System
AAV
— Alternate Access Vendor
RIPE NCC
— Reseaux IP Europeens Network Coordination Centre
RNX
— Restricted Numeric eXchange
ECM
— Error Correction Model
CSIRO
— Commonwealth Scientific and Industrial Research Organization
FCFS
— First-Come, First-Served
INMS
— Integrated Network Management System
3G HSPA
— Third-Generation High-Speed Packet Access
LOP-P
— Loss Of Pointer - Path
CDDI
— Copper Distributed Data Interface
LANE
— Local Area Network Emulation
F/W
— Firmware
HFC
— Hybrid Fiber Coaxial
MITI
— Ministry of International Trade and Industry
STU
— Secure Telephone Unit
BATM
— Basic Telecommunication Access Method
CFR-47
— Code of Federal Regulations Title 47 (FCC)
DL
— Downlink Message
LIF
— Logical Interchange Format
ETOC
— Electronic Table of Contents
TSP
— Telecommunications Service Priority
A/C
— Air Conditioner
LRQ
— Location Request
EECM
— End-to-End Call Manager
CPE
— Customer Premise Equipment
FIRST
— Forum of Incident Response and Security Teams (CERT)
3GIP
— Third Generation Internet Protocol
ASN.1
— Abstract Syntax Notation 1
TDWR
— Terminal Doppler Weather Radar
NCP
— Network Control Program
SCCS
— Switching Control Center System
ASD
— Alternative Service Delivery
DLL
— Digital Local Line
WSA
— Wireless Security Auditor
OML
— Object Model Library
PSO
— Professional Services Organization
BAP
— Bandwidth Allocation Protocol
AECT
— Association for Educational Communications and Technology's
RTC
— Real-Time Control
FOIP
— Fax Over Internet Protocol
FEBE
— Far End Block Error (SONET)
MBE
— Molecular Beam Epitaxy
RAU
— Remote Access Unit
FCA
— Free Carrier Alongside
DMT
— Discrete Multi-Tone Technology
S/N
— Signal-to-Noise ratio
BSA
— Basic Service Area
CIP
— Channel Interface Processor
FOD
— Fax on Demand
LN
— Line
RICK
— Repeater Interface Communications Kit
SE
— Southeast
VSAM
— Virtual Storage Access Method
ESN
— Electronic Serial Number
DXC
— Digital Cross Connect
SA
— Selective Availability (on GPS transmissions)
CSAR
— Combat Search and Rescue
COMB
— Combined
DLT
— Delete
DXF
— Data Exchange Format
MMM
— Mobile Media Mode
EPP
— Enhanced Parallel Port (PC)
ARPT
— Autorité de Régulation des Postes et Télécommunications
PMT
— Program Management Team
WSP
— Wireless Service Provider
CAAS
— Communications-as-a-Service
ATSC
— Advanced Television Systems Committee
FIOS
— Fiber Optic Services
MLA
— Modern Language Association
UBR
— Unspecified Bit Rate
GTB
— Global Telecom Brokers
FXS
— Foreign Exchange Subscriber
RS
— Receive Signature
JISC
— Japanese Industrial Standards Committee
NT
— New Technology, also Windows NT
BIND
— Berkeley Internet Name Domain
N-AMPS
— Narrowband Advanced Mobile Phone System
MTA
— Message Transfer Agents (Internet)
FNN
— Full National Number
MSDP
— Multicast Source Discovery Protocol
SCU
— System Control Unit
PLL
— Phase Locked Loop
CIC
— Carrier Identification Code
FLL
— Fixed-Loss Loop
UTL
— Utility
DDI
— Direct Dialing Incoming
MAG
— Mobile Access Gateway
BCSM
— Basic Call State Model
SIM
— Subscriber Identification Module
DPT
— Dynamic Packet Transport
GERAN
— GSM (Global System for Mobile communications) Edge Radio Access Network
LBR
— Low Bit Rate
CDA
— Communications Decency Act's
CAR
— committed access rate
VLSI
— Very Large-Scale Integration
PDL
— Positioning Data Link
LH
— Link Handler
MH
— Message Handler
NAU
— Network Addressable Unit
STM
— Scanning Tunneling Microscopy
PMOS
— P-channel Metal Oxide Semiconductor
WARC
— World Administrative Radio Conference
TP-PMD
— Twisted Pair Physical Medium Dependent
PNP
— Positive-Negative-Positive
MGC
— Multimedia Gateway Controller
DNSIX
— Defense Network Security Information Exchange
CLCC
— Ceramic Leaded Chip Carrier
CASE
— Computer-Aided Software Engineering
MA
— Maintenance Action
CTIA
— Cellular Telecommunications Industry Association
SPID
— Service Profile Identifier
DC
— Device Control
NAP
— Network Access Point
100VG
— 100 Voice Grade (IEEE 802.12 AnyLAN Standard)
ATU-C
— ADSL (Asymmetric Digital Subscriber Line) Transceiver Unit - Central office end
VPWS
— Virtual Private Wire Service
WE
— Western Electric
LASINT
— Laser Intelligence
ECDIS
— Electronic Chart Display Information System
DCAS
— Downloadable Conditional Access System
SSAP
— Source Service Access Point
CV
— Coding Violation
ETN
— Electronic Tandem Network
SCR
— Sustainable Cell Rate
PTT
— Push to Talk Taster
ENV
— Environment
PTT
— Push to Talk Technology
RMON
— Remote Monitoring
FAC
— Forced Authorization Code
EMF
— Event Management Framework
PTT
— Push to Talk Testing
WTS
— Wireless Telecommunications Symposium
CPH
— Call Party Handling
CRV
— Call Reference Value
EDC
— Electronic Dispersion Compensator
AARQ
— A-Associate Request
TOC
— Telecommunication Operations Center
B-CPE
— Broadband Customer Premises Equipment
MAU
— Multistation Access Unit
AQP
— Association for Quality and Participation
WIVO
— WIreless VelOcity
NTSC
— National Television Standards Committee
L2TP
— Layer 2 Tunneling Protocol
VC
— Virtual Circuit (ATM)
STMR
— Sidetone Masking Rating (telecommunications)
URN
— Uniform Resource Namespace
EM
— Element Manager
PTI
— Payload Type Indicator
SPE
— Synchronous Payload Envelope
TACSAT
— Tactical Satellite
CAMEL
— Customized Applications for Mobile-network Enhanced Logic
NF
— Noise Factor
ILETS
— International Law Enforcement Telecommunications Seminar
AWG
— arrayed waveguide grating
ECS
— Environmental Control System (Subsystem)
DTE
— Digital Terminal Equipment
MC
— Maintenance Control
VN
— Virtual Network
SEM
— Scanning Electron Microscopes
DNI
— Data Network Interface
INTELSAT
— International Telecommunications Satellite
MTI
— Moving Target Indicator
WFA
— Wait for Answer
ALOC
— Average Length Of Call
IDCP
— Internet Device Control Protocol
ATCA
— Advanced Telecom Computing Architecture
FDI
— Feeder Distribution Interface
ET
— Electronic Transmission
AIS-L
— Alarm Indication Signal - Line
FB
— Fine Business
ANS
— Advanced Network Services
TDM
— Time Division Multiplexing
GI
— Graded-Index
CACH
— Call Appearance Call Handling
FTTK
— Fibre To The Kerb
BB
— Blackberry
BPP
— Billed Party Preference
NRP
— Network Resource Planning
AOS
— Alternate Operator Service
MF
— Multiple Frequency
CPOP
— Circuit Precedence Over Packet data
GAN
— Global Area Network
CDV
— Cell Delay Variation(ATM)
SCR
— System Change Request
BIOS
— Basic Input-Output System
VAN
— Value-Added Network
CDM
— Conceptual Data Model
EST
— Electroshock Therapy
FTS
— Federal Telecommunications System
FCA
— Fixed Channel Allocation
RADIUS
— Remote Authentication dial In User Service
TEI
— Terminal Endpoint Identifier
TLT
— Test Loop Translator
NSE
— Network Software Environment
MPI
— Minimum Picture Interval
KEK
— Key Encrypting Key
ETSI
— European Telecommunications Standards Institute
BSC
— Bi-Synchronous Communications
DQDB
— Distributed Queue Dual Bus
P2P
— Person-to-Person
NLM
— NetWare Loadable Module
LMT
— Lightwave Microcell Transceiver
DXI
— Data Exchange Interface
DPNSS
— Digital Private Network Signaling System
WRT/R
— Wireless Transmitter/Receiver
FIFO
— first-in, first-out
MFC
— Multi-Frequency Code
DUV
— Data-Under-Voice
CALS
— Computer Aided Acquisition and Logistic Support
ARD
— Automatic Ring Down
TRX
— Tandem Repeater eXchange
BOM
— Bit-Oriented Message
PSN
— Public Switched Network
FRF-LMI
— Frame Relay Forum - Local Management Interface
MAP
— Mobile Application Part
ACA
— Adaptive Channel Allocation
ETOM
— Enhanced Telecom Operations Map
ADPC
— Automatic Data Processing Center
DMS
— Defense Messaging System
ARFA
— Allied Radio Frequency Agency
LEED
— Low-energy Electron Diffraction
LORAN
— Long Range Aid to Navigation System
CTE
— Computer Telephony Engineer
CCCH
— Common Control Channel
ISI
— Intersymbol Interference
GRX
— GPRS Roaming Exchange
MDN
— Mobile Directory Number
RADARSAT
— Radar Satellite
TBCD
— Telephony Binary Coded Decimal
A/D
— Analog-to-Digital converter
PIM
— Protocol Independent Multicast
USRT
— Universal Synchronous Receiver/Transmitter
FTTP
— Fiber To The Premises
ATTRA
— Appropriate Technology Transfer for Rural Areas
SSN
— Switched Service Network
LDI
— Long Distance Interconnect
CERN
— Conseil Europeen Pour La Recherche Nucleaire
DTAP
— Direct Transfer Application Process
RSN
— Regional Service Network
ULL
— Unbundled Local Loop
RWIN
— Receive Window
FAT
— Final Acceptance Testing
FGDC
— Federal Geographic Data Committee's
EC
— Equipment Controller
TON
— IEEE/ACM Transactions On Networking
BABT
— British Approvals Board for Telecommunications
LMDS
— Local Multipoint Distribution Service
SDNS
— Secure Data Network System
LCGN
— Logical Channel Group Number
DE
— Discard Eligibility (ATM)
VTAM
— Virtual Telecommunication Access Method
BT
— Bluetooth Tablet
GTM
— Go to Meeting
ICL
— Inserted Connection Loss
BASIZE
— Buffer Allocation Size
WTNM
— Working Telephone Number Management
TBPS
— Terabits Per Second
WRED
— Weighted Random Early Detection
CMA
— Communications Management Association
MIS
— Marketing Intelligence System
ATS
— Abstract Test Suite
CAPTAIN
— Character And Pattern Telephone Access Information Network
CBQ
— Class-Based Queuing
NCF
— Network Control Facility
AAP
— Alternate Access Provider
LAPB
— Link Access Protocol-Balanced
MMDS
— Multichannel Multipoint Distribution Service
RCP
— Right-Hand Circular Polarization
LOB
— Line Of Bearing/Balance
CRS
— Cell Relay Service
MILNET
— Military Network
RAD
— Recorded Announcement Device
PSLV
— Polar Satellite Launch Vehicle (Indian Space Research Organization; India)
DS-3
— Digital Signal, Level 3
TD
— Transmit Data
IPRC
— Intellectual Property Rights Committee
ATRAC
— Adaptive Transform Acoustic Coding
MA
— Message Analysis
BIS
— Brought Into Service
QOI
— Quality of Information
DPA
— Distributed-Power Architecture
ILD
— International Long Distance
CRBT
— Color Ring Back Tone
FFH
— Fast Frequency Hopping
VISSR
— visible and infrared spin scan radiometer (GOES)
MP
— Modulation Parameter
EV
— electronvolt
GRUB
— Greedy Reclamation of Unused Bandwidth
HDTV
— High-Definition Television
DPDT
— Double-Pole Double-Throw
CRTS
— Cellular Radio Telecommunications Service
NMC
— Network Management Center
RDSS
— Radio Determination Satellite Service
4WAI
— Four-Wire Analog Interface
OSA
— Open System Architecture
SRL
— Singing Return Loss
VSAT
— Very Small-Aperture Terminal
DCMES
— Dublin Core Metadata Element Set
PY
— person-year
CON
— Concentrator
VSM
— Vestigial Sideband Modulation
BT
— Burst Tolerance
ESCON
— Enterprise System Connection
RDT
— Remote Digital Terminal
SRA
— Seamless Rate Adaptation
DSSSL
— Document Style Semantics and Specification Language
SDSL
— Symmetrical Digital Subscriber Line
ADM
— Administration Building
FAW
— Frame Alignment Word
IR
— International Roaming
VOFR
— Voice Over Frame Relay
DOD
— Direct Outward Dialing
CSR
— Customer Service Request
UTRAN
— UMTS (Universal Mobile Telecommunication System) Terrestrial Radio Access Network
FOC
— Fiber-Optic Cable
TSG
— Telephone Security Group
VADB
— Virtual Auto Dial Backup
AB
— Answer Back
TRIG
— Trigger
EF&I
— Engineering, Furnishing and Installation
ADM
— Administration, Office of
DRQ
— Disengage Request
DTU
— Date/Time Update
EC-N
— Electrical Carrier (n=a number, e.g., EC-4)
UAN
— Universal Area Network
ECTF
— Enterprise Computer Telephony Forum
MOS
— Metal Oxide Semiconductor (FET Devices)
X
— X Window System
DPBX
— Digital Private Branch Exchange
UNO
— Universal Network Operations
ATB
— Above-Ground Telecommunications Backbone
FDOA
— Frequency Difference Of Arrival
WVOIP
— Wireless Voice over Internet Protocol
UPT
— Universal Personal Telecommunications
DTL
— Defense Telephone Link
RADSL
— Rate Adaptive Digital Subscriber Line
ATD
— Advanced Technology Demonstration
BHA
— Busy Hour Attempts
BTN
— Billing Telephone Number
IBS
— In-Building Solutions
SN
— Switching Network
LCF
— Location Confirm
MR
— Mobile Router
IBSS
— Independent Basic Service Set
MPU
— Main Processor Unit
BIC
— Bus Interface Controller
PACS
— Personal Access Communications System
LS
— Loop Start
LSAP
— Link Service Access Point
DCS
— Defense Communications System
SCH
— Synchronization Channel
RTB
— Retransmission Buffer
QSTN
— Question
AGCH
— Access Grant Channel
FC
— Frame Control
QOTS
— Quality Of Telephone Services
AIU
— Analog Interface Unit
ACU
— Automatic Calling Unit
RFR
— Radio Frequency Radiation
EVC
— Electronic Voucher Charging
WFT
— Wireline Formation Test
PTE
— Path Terminating Equipment (SONET)
WIN
— Wireless Intelligent Network
DAC
— Digital to Analog Converter-Audio
FEAT
— Feature
COP
— Character Oriented Protocol
TSI
— time-slot interchange
SMSC
— Short Message Service Center
GFC
— Generic Flow Control (ATM)
ANAC
— An Automatic Number Announcement Circuit
SMMR
— Scanning Multichannel Microwave Radiometer
CAS
— Column Address Strobe
802.11 HR
— High data Rate IEEE 802.11 Wireless LAN protocol
DMT
— Discrete Multi-Tone
LLA
— Link Level Access
RS-422
— Recommended Standard 422 (ANSI/EIA standard for transmitting serial data)
PD
— Pulse Duration
BAF
— Bellcore AMA (Automatic Message Accounting) Format
FI
— Format Identifier
CFOT
— Certified Fiber-Optic Technician
KTS
— Key Telephone System
DPST
— Double-Pole Single-Throw
CDV
— Compressed Digital Video
AAL
— ATM (Asynchronous Transmission Mode) Adaptive Layer
RPCU
— Radio Port Control Unit
DUN
— Dial-Up Networking
OLS
— Optical Line System
4G
— Fourth Generation
SMS
— Service Management System
DS-1
— Digital Signal, Level 1
RCU
— Radio Control Unit
OMP
— Open Management Platform
CCSA
— Common Control Switching Arrangement
RDT
— Recall Dial Tone
CLD
— Cross-Layer Design
BNCC
— Base Network Control Center
ADF
— Application Dedicated File
COC
— Central Office Connection
COFA
— Change Of Frame Alignment
HEC
— Header Error Control
INSAT
— Indian National Satellite
NAM
— Number Assignment Module
NRZ
— Nonreturn To Zero
SBX
— Small Business Exchange
ZD
— Zero Defects
TC
— Technical Committee (HL7)
JWP
— Joint Working Party
GMSS
— Global Mobile Satellite System
AAV
— Alternative Access Vendor
WFG
— Wireless Firewall Gateway
CCR
— Current Cell Rate (ATMF)
LB
— Local Battery
ET
— Exchange Terminal
TCB
— Telecommunication Certification Body
EFCI
— Explicit Forward Congestion Indication (ATM)
AA
— Auto-Answer
DMNG
— Digital Mobile News Gathering
UDP
— Up Down Pair
SMU
— Service Management Unit
DECCO
— DISA Defense Commercial Communications Office
CATI
— Computer-Assisted Telephone Interviewing
TEL & TEL
— TELephone and TELegraph
CDA
— Communications Decency Act of 1996
TU
— Transmission Unit
PLCP
— Physical Layer Convergence Procedure
RNR
— Receive Not Ready
FMR
— Follow Me Roaming
SGSN
— Serving GPRS (General Packet Radio Service) Support Node
BSC
— Base Station Controller
ALCAP
— Access Link Control Application Protocol
PGP
— Pretty Good Protection (encryption)
ACM
— Address Complete Message
CID
— Craft Interface Device
BONDING
— Bandwidth On Demand Interoperability Group
STA
— Science and Technology Agency (Japan)
TCS
— Telephony Control Specification
PTCL
— Pakistan Telecommunication Company Ltd
IMPI
— IP (Internet Protocol) Multimedia Private Identity
NC
— Network Computer (PC Internet)
CTO
— Commonwealth Telecommunications Organisation
TP
— Telephone Pole
BPSK
— Binary Phase-shift Keying
CFS
— Call for Service
E
— Exchange
LCP
— Local Control Point
FPS
— Framing Pattern Sequence
EEROM
— Electronically Erasable Read-Only Memory
UMTS
— Universal Mobile Telecommunications Service
PSK
— Phase Shift Key
ALI
— Automatic Location Identifier
UNI
— User-Network Interface
VNL
— Via Net Loss
OTF
— On-The-Fly (data acquisition method)
WDSL
— Wireless Digital Subscriber Line
MNOS
— Metal-nitride-oxide Semiconductor
ANSI
— Advanced Network Signaling Input
CLI
— Calling Line Identification
HUACA
— Hang Up And Call Again
TT
— Text-Telephone
DDU
— Digital Data Unit
SCORM
— Shareable Content Object Reference Model
XRF
— X-Ray Fluorescence
ACF
— Access Coordination Function
BHCC
— Busy Hour Call Completions
RLC
— Radio Link Control
RRC
— Root Raised-Cosine
ESM
— electronic support measure
IXC
— interexchange carrier
BTP
— Business Telecom Products, Inc.
CSCW
— Computer-Supported Cooperative Work
NC
— Network Channel
IMTS
— Improved Mobile Telephone Service
VO
— Voice Only
CPAP
— Customer Premises Access Profile
TP
— Transition Point
CSDU
— Core Service Data Unit
BRAN
— Broadband Radio Access Network
UCF
— Unregistration Confirm
LCAS
— Link Capacity Adjustment Scheme
SAA
— Systems Application Architecture
BOA
— Basic Object Adapter
CCP
— Compression Control Protocol
TJB
— Telephone Junction Box
AFCEA
— Armed Forces Communications and Electronics Association's
AIS-P
— Alarm Indication Signal - Path
CSR
— Customer Service Report
BUS
— Business Units
FESS
— Flywheel Energy Storage System
WVPN
— Wireless Virtual Private Network
PFE
— Power Feed Equipment
ADM 3X
— DS3 Add-Drop Multiplex
BTS
— Base Transceiver Station (cellular)
PMMA
— Polymethyl Methacrylate
AMTFT
— Active Matrix Thin Film Transistor
BAOC
— Barring of All Outgoing Calls supplementary service
SSU
— Synchronization Supply Unit
PMT
— Photo Multiplier Tube
ATL
— Advanced Technology Laboratory
SLIC
— Subscriber Loop Interface Circuit
TCA
— Threshold Crossing Alert
MB
— Measured Business
PCS
— Personal Communications Services
AAL2
— ATM (Asynchronous Transmission Mode) Adaptation Layer 2
FLN
— Fixed Line Network
TMTC
— Telemetry and Telecommand
CDVT
— Cell Delay Variation Tolerance
DAS
— Distributed Antenna System
DECT
— Digital Enhanced Cordless Telecommunication
APPC
— Advanced Program-to Program Communications
NETBIOS
— Network Basic Input-Output System
IVP
— Integrated Voice Protocol
OMF
— Object Management Framework
ANT
— ADSL Network Terminator
BT
— Back Trace
EC
— Entropy Coding
DMT
— Discrete Multi-tone Transmission
BSRF
— Basic System Reference Frequency
CBMS
— Computer-Based Message System
BAM
— Basic Access Module
MBMS
— Multimedia Broadcast/Multicast Service
QS
— Quasi-Synchronous
RJ-11
— Registered Jack type 11 (4-wire connector)
UNI
— User Network Interface
O
— objective
ACNA
— Access Customer Name Abbreviation
M
— Memory
MRCA
— Most Recent Common Ancestor
LTU
— Line Terminating Unit
DIL
— Direct Inward Line
LCU
— Lightweight Computer Unit
CNID
— Calling Number Identification Display
PROV
— Provisioning
DMT
— Digital-Discrete Multi-Tone
ACRE
— Authorization and Call Routing Equipment
GSTN
— General Switched Telephone Network
DSU
— Digital Service Unit
CSTA
— Computer Supported Telecommunications Applications
SMT
— station management (protocol)
IPXCP
— Internetwork Packet Exchange Control Protocol
USA
— Underground Service Alert
LIDB
— Line Information DataBase
LSP
— Label Switched Path
NFR
— Near-Field Recording
MVDS
— Microwave Video Distribution System
GSM-R
— Global System for Mobile (communications) – Rail
CCCI
— Command, Control, Communications and Intelligence
SGCP
— Simple Gateway Control Protocol
AEA
— American Electronics Association's
DF
— Direction Finding or Finder
EC
— Enhanced Cellular
VDR
— Voice Digitization Rate
LRM
— Long Reach Multimode
WSP
— Wireless Session Protocol
VOB
— Voice Over Broadband
TSC
— Test System Controller
PSDN
— Public Switched Digital Network
WAAS
— Wide Area Augmentation System
2G
— Second-generation mobile telephone system
CMTS
— Cellular Mobile Telephone System
GSM
— Global System for Mobile telecommunications
AIS-V
— Alarm Indication Signal - Virtual
CLF
— Carrier Line Failure
NSN
— National Significant Number
NIMH
— Nickel-Metal Hydride
DCO
— Dial Central Office
DS0
— Digital Signal Zero
CACM
— Communications of the ACM
LSC
— Link State Control
TIMS
— Telephone Information Management System
SR
— Service Request
NICT
— National Institute of Information and Communications Technology
CCSS6
— Common Channel Signaling System # 6
TCM
— Time Compression Multiplexer
LSI
— Large-Scale Integration
TX
— Transmit
COBE
— Corporate Owned Business Only
TESMA
— Telecommunications Equipment and Services Master Agreement
USF
— Universal Service Fund
NESC
— National Electrical Safety Code
USPI
— Universal Serial Phone Interface
ATIS
— Automatic Transmitter Identification System
GOSIP
— Government Open Systems Interconnection Profile
JSC
— Joint Scientific Committee (ICSU, WCRP, and WMO)
WPC
— Wireless Personal Communications
APS
— Advanced Power System
RCMAC
— Recent Change Memory Administration Center
FR
— Functional Requirement
Z
— Zulu Time
DPT
— Dial Pulse Terminate
MQFP
— Metric Quad Flat Pack
LPDP
— Local Policy Decision Point
ACL
— Asynchronous Connection-less Link
ADTM
— Asynchronous Data Transfer Mode
IMT-2000
— International Mobile Telecommunications 2000
ADIF
— Accounting Data Interchange Format
LI
— Length Indicator
MGCP
— Multimedia Gateway Control Protocol
SAR
— Segmentation and Reassembly (ATM)
AEIMP
— Apple Event Interprocess Messaging Protocol
RSL
— Remote Serial Link
CC
— Composite Clock (SONET)
MO
— Magneto-optic
OST
— Office of Science and Technology
ATU-R
— ADSL (Asymmetric Digital Subscriber Line) Transceiver Unit - Remote terminal end
BCST
— Broadcast
DDM
— Data Distribution Manager
PHY
— Physical Layer
CWTS
— China Wireless Telecommunication Standard
DNA
— Digital Network Architecture
CALA
— Customer Address Location Area
CLP
— Cell Loss Priority (ATM)
QPM
— QoS (Quality of Service) Policy Manager
STD
— Standard Deviation
BP
— Block Parity
PSQM
— Perceptual Speech Quality Measure
PJC
— Pointer Justification Count
RLA
— Received Level Average
NHRP
— Next Hop Resolution Protocol (ATM)
IDLC
— Integrated Digital Loop Carrier
FMS
— Fixed Mobile Substitution
MITS
— Metaphors for Integrated Telecommunications Services
AVT
— Audio Visual Telecommunications
CAE
— Common Application Environment
B-ISDN
— Broadband ISDN
SAPI
— Service Access Point Identifier
PLE
— Path Length Efficiency
DTR
— Down-Time Ratio
MCR
— Minimum Cell Rate (ATM)
BWX
— Broadband Wireless Exchange
EC
— Echo Cancelling
TRANSEC
— Transmission Security
SQL
— Specified Quality Level
TCL
— Transverse Conversion Loss
ASAS
— All-Source Analysis System
DLE
— Digital Local Exchange
ISSI
— Inter-Switching System Interface
AMOLED
— Active Matrix Organic Light-Emitting Diode
VFL
— Visual Fault Locator
VR
— Virtual Router
LCU
— Line Control Unit
VOB
— Versioned Object Base
LAT
— Local Area Transport (network)
DCC
— Digital Control Channel
BCIX
— Berlin Commercial Internet Exchange
PLCP
— Physical Layer Convergence Protocol (ATM)
VLF
— Vertical-Laminar-Flow
GOMP
— Get Off My Phone
MEH
— Mobile-Executed Handoff
CLOS
— Clear Line Of Sight
SDN
— Software Defined Network
BDFB
— Battery Distribution Feeder Bay
AAS
— Automatic Announcement Subsystem
LULT
— Line Unit/Line Termination
GS
— Ground Start
NANP
— North American Numbering Plan
WAE
— Wireless Application Environment
AFPS
— Automatic Facility Protection Switching
RTFM
— Read The Friendly Manual
VAD
— Voice Activity Detection
BFS
— Broadcast File System
EGPRS
— Enhanced General Packet Radio Service
ITU-T
— International Telecommunication Union - Telecommunications section
IVN
— Interactive Video Network
CAN
— Controller Area Network
RYP
— Russian Yellow Pages
RTC
— Right to Carry
VSC
— Vertical Service Code
DOV
— Data-Over-Voice
PDSO
— Packet Data Security Overlay
SSP
— Security Service Provider
SMS
— System Management Server
CEE
— Communaut? Economique Europ?enne
HU
— Hook Up
IDCU
— Integrated Digital Carrier Unit
TCAM
— Telecommunications Access Method
MAPDU
— Management Application Protocol Data Unit
OSD
— Onscreen Display
WNAN
— Wireless Neighborhood Area Network
PT
— Payload Type (ATM)
VCT
— Variable Cam Timing
CM
— Common Mode
UIT
— Union Internationale des Télécommunications
PCCA
— Portable Computer Communications Association
CD ROM
— Compact Disc Read-Only Memory
MNA
— Multi-Network Area
CCH
— Common Channel Handler
DDSN
— Digital Derived Services Network
CU
— Cooling Unit
MERIS
— medium-resolution imaging spectrometer
LMS
— Location and Monitoring Service
DLT
— Digital Line Termination
EADAS
— Engineering and Administrative Data Acquisition System
RP
— Radio Port
AI
— Adapter Interface
CDPD
— Cellular Digital Packet Data
DSCS
— Defense Satellite Communication System
GOSIP
— Government Open System Interconnection Profile
TOMS
— Telecom Operations Management System
MIR
— Maximum Information Rate
FUD
— Fair Use Doctrine
NEF
— Network Element Function
WIM
— WAP (Wireless Application Protocol) Identity Module
WFA
— Work Force Administration
REN
— Ringer Equivalence Number
HCV
— High Capacity Voice
CT
— Cordless Telecommunications
ECC
— Emergency Communications Center
ULP
— Upper Layer Protocol
SOR
— Statement of Requirements
AT
— Attenuation
TP
— Termination Point
MOC
— Maintenance and Operations Console
PVN
— Private Virtual Network
ECS
— Encryption Control Signal
LZ
— Lempel-Ziv compression algorithm
ATIS
— Alliance for Telecommunications Industry Solutions
ESG
— Enhanced Service Gateway
DORA
— EV-DO (EVolution-Data Optimized) standard Revision A
NSDI
— National Spatial Data Infrastructure
CMT
— Commercial Metering Transponder
HPN
— Home Phone Network
FPLMTS
— Future Public Land Mobile Telecommunications System
WEDE
— Wireless Enterprise Delivery Environment
CAL
— Customer Access Line
CD-ROM
— Compact Disk-Read-Only Memory
MBS
— Maximum Burst Size (ATM)
NMC
— Nortel Matra Cellular
ADTS
— Ameritech Digital Transport Service
VDSL
— VHBR (Very High Bit Rate) Digital Subscriber Line
MODEM
— modulation and demodulation
SDCCH
— Standalone Dedicated Control Channel
TTC
— Telemetry Telecommand and Control
DME
— Distributed Management Environment (OSF)
EKTS
— Electronic Key Telephone Set
DOD
— Dial on Demand
LRF
— Laser Range Finder
DEO
— Digital End Office
DBN
— Dial-Back Number
SPI
— Security Parameters Index
SAMI
— Structured Adjustment & Maintenance Interface
CRL
— Computing Research Laboratory
FEAC
— Far End Alarm and Control
ACMA
— Atlantic Cable Maintenance Agreement
ETB
— Empresa de Telecomunicaciones de Bogotá
GLT
— Great Lakes Telecom
SCC
— Specialized Common Carrier
DACS
— Digital Access Carrier System
TACSIM
— Tactical Simulation (Simulator)
DFT
— Draft
VNS
— Virtual Network System
WLAP
— Wireless LAN (Local Area Network) Access Point
WNAP
— Wireless Network Access Point
IPCDN
— IP over Cable Data Networks
DTW
— Dynamic Time Warping
APPN
— Advanced Peer-to-Peer Network
ABR
— Available Bandwidth Rate
VCR
— Videocassette Recorder
IOC
— Interoffice Channel
TCC
— Transmission Control Code
MDRAM
— Multibank Dram
GEO
— Geostationary Earth Orbit
RCT
— remote Control Terminal
SINS
— Ship’s Inertial Navigation System
RCF
— Remote Call Forwarding
VTIR
— visible and thermal infrared radiometer
CIS
— Center for Integrated Systems
SHD
— Smart Handheld Device
AL
— Alignment
NCOS
— Network Class Of Service
800
— Freephone
EA
— expedited acknowledgement
AH
— Authentication Header
DBF
— Digital Beam-Forming
TNI
— Telephone Network Interface
UDT
— Unreliable Data Transfer
NPSI
— Network Packet Switching Interface
TPS
— Telephone Preference Service
LTU
— Line Termination Unit
AMTI
— Airborne Moving Target Indicator
COMPANDER
— COMpressor/exPANDER
GOS
— Gerry Otis Simpson
P&A
— Privacy and Authentication
TSDU
— Transport Service Data Unit
WPBX
— Wireless Private Branch Exchange
TOU
— Time of use (rate) (electricity)
BSS
— Broadband Switching System
3RNGR
— Three Ringer
OIM
— Operations Interface Module
PCIA
— Personal Communications Industry Association
TAPI
— Telephony Application Programming Interface
WDP
— Wireless Datagram Protocol
WGX
— Wireless Gateway Switch
YIP
— Your Internet Phone
OID
— Object Interaction Diagram
RLC
— Reverse Link Channel
EMV
— EuroPay, MasterCard, Visa
FD
— Full Duplex
AADS
— Ameritech Advanced Data Services
IDEN
— Integrated Dispatch Enhanced Network
DE
— Discard Eligible
LQD
— Line Quality Disturbance
LXT
— Local Exchange Terminal
CDSL
— Consumer Digital Subscriber Line
TNMS
— Telecommunications Network Management System
CCS
— Call Center Service
TRCSL
— Telecommunications Regulatory Commission of Sri Lanka
PVG
— Packet Voice Gateway
ATB
— All Trunks Busy
SOH
— Section Overhead
DNA
— Do Not Answer
VPC
— Virtual Path Connection (ATM)
TLP
— Transmission Level Point
PRM
— Performance Report Message
ESA
— Enhanced Subscriber Authentication
SACS
— Security Access Control System
CPN
— Customer Premise Network
AWA
— Advanced Wireless Access
MIN
— Mobile Identification Number
CYTA
— Cyprus Telecommunications Authority
CDM
— Configuration Data Manager
GVPN
— Global Virtual Private Network
CD
— Committee Draft
ILF
— Initial License Fee
SR
— Scanning Radiometer
DORK
— Disciples Of The Righteous King
CELP
— Code Excited Linear Prediction
LRB
— Loop Reverse Battery
PNM
— Pulse Number Modulation
ADAD
— Automatic Dialing Announcing Device
SHR
— Self-Healing Ring
DCEF
— Distributed Cisco Express Forwarding
IRAC
— Internal Review and Audit Compliance
IRLAP
— InfraRed Link Access Protocol
4WE&M
— Four-Wire Ear and Mouth
CLASS
— Cell Level ATM (Asynchronous Transfer Mode) Services Simulator
V
— Vector
CEPT
— Conference of European Posts and Telecommunications
CCS
— Common Command Set
VCC
— Voice Call Continuity
QPA
— Quality Performance Analysis
PTT
— Post Telegraph and Telecommunications
JMA
— Japanese Meteorological Agency
CM
— Connection Manager
WDMW
— Web Directory for Mobile and Wireless
CALC
— Customer Access Line Charge
NICAD
— Nickel Cadmium
C²
— Command and Control
CSL
— component sublayer
PTN
— Public Telephone Network
QNC
— Quick Net Connect
SOHO
— SOlar and Heliospheric Observatory
MSG
— Management Steering Group
CSLIP
— Compressed SLIP
D3
— Digital channel bank, Third generation
SLBM
— Submarine-launched ballistic missile
DPDCH
— Dedicated Physical Data Channel
VLR
— Visitor Location Register
CAP
— Competitive Access Provider
CMIS
— Common Management Information Service
USD
— Universal Service Directive
PC
— Project Coordinator
LSMS
— Local Service Management System
LVM
— Line Verification Module
TDRS
— Tracking and Data Relay Satellites
RANAP
— Radio Access Network Application Part
NMS
— NetWare Management System
JDC
— Japan Digital Cellular
ESDS
— Electrostatic Discharge Sensitive
SMAS
— Service Management System
BTL
— Bell Telephone Laboratories, Inc.
DLC
— Digital Leased Circuit
FDMMA
— Frequency Division Multiplexing Multiple Access
WBMP
— Wireless Bitmap
CVT
— Circuit Validation Test
WATS
— Wide Area Telecommunications Service
CSP
— Converged Service Platform
SASL
— Simple Authentication and Security Layer
TEM
— Transmission Electron Microscope
3WC
— Three Way calling
UCA
— Utility Communications Architecture
TLC
— Television the Learning Channel
SMLC
— Serving Mobile Location Center
CSAP
— Core Service Access Point
IR
— Information Request
ZBTSI
— Zero Byte Time Slot Interchange
DCB
— Digital Channel Bank (Sprint)
DOITT
— Department of Information Technology and Telecommunications
CMAS
— Cellular Management System
HDB3
— High-Density Bipolar Three-bit substitution
TCAP
— Transaction Capabilities Application Part
AFRINIC
— African Network Information Centre
AFIPS
— American Federation of Information Processing Societies
AEE
— Agent Execution Environment
WCMP
— Wireless Control Message Protocol
ARDIS
— Advanced Radio Data Information Service
MMJ
— Modified Modular Jack
DDS
— Dataphone Digital Service (AT&T)
ISD
— International Subscriber Dialling
DAF
— Directory Access Function
DACS
— Digital Access and Cross-Connect System
NARC
— Non-Automatic Relay Center
AAPR
— Annual Average Performance Ratio
ISDP
— Intelligent Shared Dual Path
STUN
— Simple Traversal of UDP (User Datagram Protocol) through NAT (Network Address Translation)
QOD
— Quality of Data
DTU
— Data Terminal Unit
ISTD
— International Subscriber Trunk Dialing
EDGE
— Enhanced Data for GSM (Global System for Mobile communication) Evolution
SH
— Shell
SS7
— Signaling System 7
SSU
— Stratospheric Sounding Unit (TOVS)
QOSM
— Quality of Service Management
JWG
— Joint Working Groupof
SIGTRAN
— Signaling Transport
ATACS
— Army Tactical Communications System
CLASS
— Custom Local Area Signaling Services
MDCP
— Media Device Control Protocol
ARS
— Automatic Route Selection
AWS
— Advanced Wireless Services
BREW
— Binary Runtime Environment for Wireless
D/I
— Drop and Insert
ALT
— Automatic Link Transfer
ECA
— Extended Calling Area
RCQS
— Roaming Call Quality Sensor
COI
— Community of Interest
RCR
— Research and Development Center for Radio Systems
VGF
— Voice Grade Facility
USF
— Universal Server Farm
HBH
— Hop-By-Hop
CPCI
— Compact Peripheral Component Interconnect
WBTS
— Wireless Business Telephone System
ASA
— Avaya Site Administration
DMB
— Disconnect and Make Busy
TRANS
— Transaction
UCM
— Use Case Map
RTU
— Right to Use
SNI
— Service Node Interface
CHT
— Active
PI
— Processor Interface
ATL
— Atlanta
TFL
— Telecom Fiji Limited
ADTS
— Automated Digital Terminal System
FR-SSCS
— Frame Relay Service Specific Convergence Sub-Layer
WLNP
— Wireless Local Number Portability
WBOK
— Wireless Broadband of Oklahoma
NECA
— National Exchange Carrier Association
ISC
— International Switching Center
PM
— Processable Mode