اختصارات بکار رفته در ارتباطات راه دور

اختصارات بکار رفته در ارتباطات راه دور

Acronyms and Abbreviations in Telecommunications

2B1Q Two Binary One Quaternary
3-G Third-generation mobile standard
3G Third-Generation licences
3G3P 3G Patent Platform Partnership
3GPP Third-Generation Partnership Project
3D Third generation mobile systems
4GL Fourth Generation Language

A
A2Go Applications2Go
AAATE Association for the Advancement of Assistive Technology in Europe
AAC Augmentative and Alternative Communication
ABM Asynchronous Balances Mode (HDLC)
ACCC Australian Competition and Consumer Commission
ACCESS Development Platform for Unified Access to Enabling Environments (TIDE project)
ACD Automatic Call Distribution
ACEC Advisory Commission on Electronic Commerce
AceS Asia Cellular Satellite
ACIF Australian Communications Industry Forum
ACITS Advisory Committee on Information Technology Standardisation (SOG-IT)
ACM Association for Computing Machinery
ACTE Approvals Committee for Terminal Equipment (EC)
ACTS Advanced Communications Technologies and Services Satellite
ADA Americans with Disabilities Act
ADL Activities of Daily Living
ADPCM Adaptive Differential Pulse Code Modulation (Digital compression technique used to process audio on DC-ROM CA and CD-I.)
ADSL Asymmetric Digital Subscriber Line
AECMA Association Europeenne des Constructeurs de Materiel Aerospatial
AER Association for Education and Rehabilitation of the Blind and Visually Impaired
AES Advanced Encryption Standard
AFB American Foundation for the Blind
AFIM l'Association Francaise d'Internet Mobiles
AFNOR Association Francaise pour la NORmalisation
AHCIET Asociacion Hispanoamericana de Centros de Investigacion y Empresas de Telecomunicaciones
AIM Advanced Informatics for Medicine (DG XIII)
ALDICT Access of Persons with Learning Disabilities to Information and Communication Technologies
ALEC Alternate Local Exchange Carrier
AMPS Advanced Mobile Phone System
ANI Automatic Number Identification (ISDN)
ANSI American National Standards Institute
AP Application Program
APCN Asia Pacific Cable Network
APDU Application Protocol Data Unit
APN Access Point Name
APNG Asia-Pacific Networking Group
APPSN Application Pilot for People with Special Needs (RACE project)
APRS Automatic Packet Reporting System
ARCS Astra Return Channel System
ARIN American Registry for Internet Numbers
ARL Akamai Resource Locator
ARM Asynchronous Response Mode (HDLC)
ARPANET Advanced Research Projects Agency NET
ART Autorite de Regulation des Telecommunications
ASCII American Standard Code for Information Interchange
ASDL Assymetric Digital Subscriber Line
ASI Alternate Space Inversion
ASIC Application Specific Integrated Circuit
ASL American Sign Language
ASNA Internet Assigned Numbers Authority
ASO Address Supporting Organization
ASP Advanced Speech Processor; Applications Service Provider
ASPIC Application Service Provider Industry Consortium
ASR Automatic Speech Recognition
ASP Application Service Provider
AT Assistive Technology
ATDM Asynchronous Time Division Multiplexing
ATM Asynchronous Transfer Mode or Automatic Teller Machine
ATR Advanced Telecommunications Research (Institute)
ATRC Adaptive Technology Research Center
ATTT African Telecommunicatiions Think Tank
ATUG Australian Telecommunications Users Group
AUDETEL Audio Description of Television for the Visually Disabled and Elderly (TIDE project)
AURORA Project to develop safety equipment systems for disabled and elderly persons (TIDE project)
AVL Acailable
AVM Audio Visual Management

B
B2 Bredbandsbolaget AB
B2B Business-to-Business
B2C Business to Consumer
BABT British Approvals Board for Telecommunications
BAIC Barring of All Incoming Calls
BAOC Barring of All Outgoing Cells
BAP Bandwidth Allocation Protocol
BAPT Bundesamt für Post und Telekommunikation
BBS Bulletin Board System
BCAP Bandwidth Allocation Control Protocol
BCD Binary Coded Decimal
BDT Telecommunication Development Bureau of the ITU
B-ICI Broadband Intercarrier Interface (ATM)
BIOS Basic Input/Output System
BIPT Belgian Institute for Posts and Telecommunications
BIS Business Intelligence Software
B-ISDN Broadband Integrated Services Digital Network
BLEC Building (or Basement) Local Exchange Carrier
BLSR Bidirectional Line Switched Ring
BMPT Bundesamt fuer Post and Telekommunikation
BMS Broadband Management System
BNT Groupe Belge des Normes de Telecommunications
BOTZ Build Operate Transfer
BRI Basic Rate Interface (ISDN)
BRITE Basic Rate Interface Transmission Equipment
BRITE/EURAM Basic Research in Industrial Technologies for Europe/European Research in Advanced Materials
BSC Base Station Controller (Wireless/GSM(
BSC Binary Synchronous Communications (IBM)
BSI British Standards Institution
BSIC Base Transceiver Station Identity Code
BSS Base Switching System
BT Business Telecommunications (as used by ETSI) or British Telecom
BTAM Basic Telecommunications Access Method (SNA)
BTR British Telecom Requirement
BTS Base Transceiver Station
BWA Broadband Wireless Association
BWLL Broadband Wireless Local Loop

C
CA Certificate Authority
CALEA Communications Assistance for Law Enforcing Agencies
CAMEL Customized Application for Mobile networks Enhanced Logic
CAPS Communication and Access to information for Persons with Special needs (TIDE project)
CAST Center for Applied Special Technology
CATV Cable Television also Community Antennae Television
CB Citizens Band
CCIR Comité Consultatif International des Radiocommunications (ITU-R)
CCITT Comite Consultatif International Telegraphique et Telephonique
CcTLD Country-code Top Level Domain
CD Call Deflection; Compact Disc
CDG CDMA Development Organization
CDMA Code Division Multiple Access
CDN Content Delivery Network
CDPD Cellular Digital Packet Data
CEC Commission of the European Communities
CEE Central and Eastern Europe
CEN Comite Européen de Normalisation
CENELEC Comite Européen de Normalisation Electronique
CEPT Conference of European Postal and Telecommunications Administrations
CFB Call Forward Busy
CFNR Call Forward No Reply
CHTML compact HTML
CIC Carrier Identification Code
CISC Complex Instruction Set Computer (i.e., can perform multiple operations per instruction)
CIX Commercial Internet eXchange
CLEC Competitive Local Exchange Carrier
CLI Calling Line Identity/Identification
CLIP Calling Line Identity Presentation
CLIR Calling Line Identification Restriction
CLP Cell Loss Priority (ATM)
CMCC China Mobile Communications Corporation
CMR Cellular Mobile Radio
CNAE Customer Network Access Equipment
CNC China Netcom Corporation
CNET Centre National d'Etudes des Telecommunications
CNM Customer Network Management
COLP Connected Line Identification Presentation
COLR Connected Line Identification Restriction
COM Common Object Model
COMAC Committee On Medicine And Computers (DG XII)
COMESA Common Market for Eastern and Southern African States
COMETT Community Programme in Education and Training for Technology
Copernicus Co-operation in Science and Technology with Central and Eastern European Countries
CORBA Common Object Request Broker Architecture
CORE Consensus creation and awareness for research and development activities in technology for disabled and elderly people (TIDE project)
Also: Council of Internet Registrars
COST European Cooperation in the field Of Scientific and Technical research
CP Communications Protocol
CPE Customer Premises Equipment
CPIC Common Programming Interface Communications
CPP Calling Party Pays
CPS Carrier Pre-Selection; Communications Service Providers
CREST Scientific and Technical Research Committee (of the EU)
CRM Customer Relationship Management
CRTC Canadian Radiotelevision and Telecommunications Commission
CSO Committee of Senior Officers
CSDN Circuit Switched Data Network
CSP Converged Service Provider
CSPDN Circuit Switched Public Data Network
CSS Cascading Style Sheet
CT-2 Second generation Cordless Telephone, UK
CT1 European analogue cordless telephone system
CTI Computer Telephony Integration
CTIA Cellular Telecommunications Industry Association
CTR Common Technical Regulation (EU)
CTU Czech Telecommunications Office
CW Call Waiting
CYTA Cyprus Telecommunications Authority

D
D-tag Descriptive text link
DAB Digital Audio Broadcasting
DACS Digital Access and Cross-connect System
DAI Digital Audio Interface (104 kbit/s)
DAMPS Digital Advanced Mobile Phone System
DANN Data Networking Association
DARS Digital Audio Radio Satellite Service
DASS Digital Access Signalling System
DBS Direct Broadcast Service
DCC Data Communication Channel
DCN Data Communications Network
DCS Digital Cellular System
DECT Digital European Cordless Telecommunications
DELTA Developing European Learning through Technological Advance (DG XIII)
DEC Disputes.org/eResolution Consortium
DES Data Encryption Standard
DFID Department For International Development
DGPS Differential Global Positioning System
DHTML Dynamic HTML
DiffServ Differentiated Services
DIS Draft International Standards
DNS Domain Name System
DNSO Domain Name Supporting Organization
DOCSIS Data Over Cable Service Interface Specification
DOM Document Object Specification
DPL Digital PowerLine
DRB Digital Radio Broadcasters
DS Direct Spread
DSL Digital Subscriber Line
DSLAM DSL Access Multiplexer
DSRR Digital Short Range Radio
DTD Document Type Definition file
DTH Direct-To-Home
DVB Direct digital Video Broadcasting
DWDM Dense Wave (or Wavelength) Division Multiplexing

E
E&D Elderly and Disabled
EARN European Academic Research Network
e-B2B electronic business-to-business
EBU European Broadcasting Union
EC European Community, European Commissions
ECART European Conference on Advances in Rehabilitation Technology
ECDC Electronic Commerce in Developing Countries
ECMA European Computer Manufacturers Association
ECOWAS Economic Community Of West African States
eCRM electronic Customer Relation Management
ECTA European Competitive Telecommunications Association; Eastern Caribbean Telecommunications Authority
ECUMN European Conference on Universal Multiservice Networks
EDF European Disability Forum
EDGE Enhanced Data for GSM Evolution; Enhanced Data rates for Global Evolution
EDI Electronic Data Interchange
EEC European Economic Community
EEMA European Forum for Electronic Business
EESSI European Electronic Signature Standardization Initiative
EFEI European Federation of Electronic Industries
EFF Electronic Frontier Foundation
EFTA European Free Trade Association
EFTPOS Electronic Funds Transfer Point of Sale
EHIMA European Hearing Instrument Manufacturers Association
EIA Electronic Industries Association
EIDD European Institute for Design and Disability
EIF European Internet Foundation
EIIA European Information Industry Association
EITAAC Electronic Information Technology Access Advisory Committee
EMC Electromagnetic Compatibility
EMI Electromagnetic Interference
EN European Norm (Term within CEN and CENELEC)
ENSOETSI National Standardisation Organisations (ETSI)
ENUM Electronic Numbering
EOTC European Organization for Testing and Certification
E-OTD Enhanced Observed Time Difference
EP European Parliament
ERO European Radiocommunications Office
ERP Enterprise Resource Planning
ERPS Enhanced Reference Picture Selection
ES European Standard or End Systems (ETSI TC BT)
ESB European Standardisation Board
ESC European Standardisation Council
ESO European Standardisation Organisation
ESPRIT European Strategic Programme for Research and Development
ETAN European Technology Assessment Network
ETIS European Telecommunications Informatics Services
ETNO European public Telecommunications Network Operators association
ETO European Telecommunications Organization
ETP European Telecommunications Platform (Brussels-based policy monitoring group)
ETR ETSI Technical Report
ETT European Telecommunications and Technology
ETS European Telecommunications Standard
ETSI European Telecommunications Standards Institute
EU European Union
EUREKA European Research Co-operation Agency
EURESCOM European Institute for Research and Strategic Studies in Telecommunications
EuroISPA European Internet Service Providers Association
EVA Economic Value Added
EVCA European Venture Capital Association
EVUA European Virtual Private Network Users Association

F
FCC Federal Communications Commission
FEDMA Federation of European Direct Marketing
FDMA Frequency Division Multiple Access
FEI Federation of the Electronics Industry
FIPS Federal Information Processing Standards
FLAG Fiberoptic Link Around the Globe
FMC Fixed Mobile Convergence
FP6 the EU's 6th Framework research Programme
FSS Fixed Satellite Service
FS-VDSL Full Service-Very High Speed Digital Subscriber Line
FTP File Transfer Protocol (IETF)
FTC Federal Trade Commission
FTSE Financial Times-Stock Exchange
FWA Fixed Wireless Access

G
GAC (ICANN's) Government Advisory Committee
GAIT GSM MAP Network/ANSI-41 Interoperability Team
GAM Global Account Management
GAN Global Area Network
GATT General Agreement on Tariffs and Trade
GBDe Global Business Dialog on electronic commerce
GEO Geosynchronous Earth Orbit
GGRF GSM Global Roaming Forum
GGSN Gateway GPRS Support Node
GIS Geographical Information System
GMCF Global Mobile Commerce Forum
GMPCS Global Mobile Personal Communication Systems (or Services)
GNS Global Network Strtegies
GNX GlobalNet eXchange
GPRS General Packet Radio Service
GPS Global Positioning System
GPRS General Packet Radio Services
GPSR General Packet Switched Radio
GSA GSM System Area
GRX GPRS Roaming Exchange
GSM Global System for Mobile telecommunications
GSP Global Service Provider
gTLD generic Top-Level Domain (e.g., .com. .edu)
GTS Global TeleSystems Group
GUIB Graphical User Interfaces for Blink people (TIDE project)

H
HAC Hearing Aid Compatible
HAPS High Altitude Platforms
HDLC High-level Data Link Control (ISO)
HDML Handheld Devices Markup Language
HDSL High-rate Digital Subscriber Loop
HDTV High Definition Television
HDVS High Definition Video System
HEART Horizontal European Activities in Rehabilitation Technology (TIDE project)
HELIOS Handicapped people in the European community Living In Open Society (DG 5)
HF Human Factor (One of ETSI's Technical Committees)
HKTUG Hong Kong Telecommunications Users Group
HSCD High Speed Circuit Switched Data
HSCSD High Speed Circuit Switched Data
HTTP Hypertext Transfer Protocol (IETF)
HVAC Heating, Ventilation and Air Conditioning (smart homes)

I
IAB Internet Architecture Board
IAHC Internet Ad Hoc Committee
IANA Internet Assigned Numbers Authority
IASP Internet Access Service Provider
IB International Bureau (of the FCC)
IBC Integrated Broadband Communication
I-CAN Integrated Customer Access Network
ICAN Integrated Control of ´All Needs (TIDE project)
ICANN Internet Corporation for Assigned Names and Numbers
ICC International Chamber of Commerce
ICD International Classification of Diseases
ICIDH International Classification of Impairments, Disabilities and Handicaps
ICT Information and Communications Technology
ICTA International Commission on Technology and Accessibility
IDATE Institut de l'Audiovisuel et des Telecommunications en Europe
IDN Integrated Digital Network
IDP International Data Post (organization of 17 postal authorities)
iDSN internationalized Domain Name System
IEC International Electrotechnical Commission
IEEE Institute of Electrical and Electronics Engineers
IEGMP Independent Expert Group on Mobile Phones
IETF Internet Engineering Task Force
IFHOH International Federation of Hard of Hearing People
ILEC Incumbent Local Exchange Carrier
ILETS International Law Enforcement Telecommunications Seminar
IM Instant Messaging
IMAP Internet Managed Application Provider
IMP Interface Message Processor
IMS Information Management System
IMSO International Maritime Safety Organization
IMT International Mobile Telephony
IMTC International Multimedia Teleconferencing Consortium
IN Intelligent Networks
INCLUDE Inclusion of Disabled and Elderly in Telematics
INMARSAT International Marine Satellite Organization
INMS International Network Management System (DT + 12 Eastern carriers)
INTELSAT International Telecommunications Satellite Organisation
INTUG International Telecommunications Users Group
IOP Input/Output Processor
I/P Internet Protocol
IP Internet telephony Providers; Internet Protocol; Intellectual Property
IPDR Internet Protocol Detail Record
IPLC International Private Leased Circuit
IPO Initial Public Offering
IPR Intellectual property rights
IPSNI Integration of People with Special Needs by IBC (RACE project)
IPv4 Internet Protocol version 4
Ipv6 Internet Protocol version 6
IP VPN Internet Protocol Virtual Private Network
IrDA Infrared Data Association
IRG Independent Regulators Group
IRU Indefeasible Right of Use
ISC International Switching Centre
ISDN Integrated Services Digital Network
ISF International Sensitivity Forum
ISIS Information Society Initiative for Standardization
ISM Industrial Scientific-Medical (frequency band)
ISO International Organisation for Standardisation
ISOC Internet Society
ISP Internet Service Provider
ISPA Internet Service Poviders Association
IST Information Society Technologies
ISTAG IST Advisory Group
ISVs Independent Software Vendors
IT Information Technology
ITM Information/Transaction Machine
ITMC International MultimediaTeleconferencing Consortium
ITS Intelligent Transport Systems
ITSP Internet Telephony Service Provider
IT&T Information Technology and Telecommunications
ITU International Telecommunications Union
ITU-R ITU Radiocommunication standardization sector
ITU-S ITU Standardization bureau
ITU-T ITU Telecommunication Standardization Sector
IUDD Infrastructure and Urban Development Department
iVAD integrated Voice and Data
IVR Interactive Voice Response

J
JAIN Jave APIs for Integrated Networks
JCG Joint Coordination Group (CEN/CENELEC/ETSI)
JPEG Joint Photographics Expert Group
JTC Jordan Telecommunications Company
JUS Japan-U.S. Cable Network

K
KM Knowledge Management
KPN Telecom formerly PTT Telecom BV

L
LAN Local Area Network
LANS Local Area Network Services
LAP Link Access Protocol
LAS-CDMA Large Area Synchronized Code Division Multiple Access
LCN Local Communication Network
LDAP Lightweight Directory Access Protocol
LDS Location Dependent Services
LEC Local Exchange Carrier
LEO Low Earth Orbit
LIMS Laboratory Information Management System
LMDS Local Multipoint Distribution System (wireless microwave cable service)
LT Lietuvos Telekomas
LRIC Long Run Incremental Cost

M
MAC Media Access Control
MADM Multiple Add/Drop Multiplexer
MAN Metropolitan Area Network
MAP Management Application Protocol
MART Maximising the Market for Telecommunications-Based Rehabilitation Technology (TIDE project)
MATHS Mathematical Access for Technology and Science for visually disabled users (TIDE project)
MC Multi-Carrier
MCPA Mulit Carrier Power Amplifier
MDA Mobile Data Association
MDD Medical Device Directive
MDF Main Distribution Frame
MIME Multipurpose Internet Mail Extensions (IETF)
MLA Mutual Legal Assitance
MMAC Multimedia Mobile Access Communications
MNO Mobile Network Operators
MOBIC Mobility Of Blind and elderly people Interacting with Computers (TIDE project)
MoU Memorandum of Understanding
MOWLAN Mobile Operator Wireless LAN
MPEG Motion Picture Experts Group (ISO)
MPLS Multi-Protocol Label Switching
MSDL MPEG-4 Syntactic Description Language
MSN Multiple Subscriber Number; Microsoft Network
MSO Multiple Systems Operator
MSS Mobile Satellite Service; Mobile Satellite Systems
MTS Mobile Telecommunications Services
MVA Market Value Added
MVNO MobileVirtual Network Operator

N
NAFTA North American Free Trade Agreement
NAF National Arbitration Forum
NAPTR Naming Authority Pointer
NASSCOM National Association of Software and Service Companies
NBAR Netwwork Based Application Recognition
NCAM National Center for Accessible Media
NCTA National Cable Television Association
NET Norme Europeene de Telecommunications
NNTH Nordic Forum for Telecommunication and Disability
NGI Next Generation Integration
NGO Non Governmental Organisations
NLSP NetWare Link Services Protocol
NMSI National Mobile Station Identification number
NMT Nordic Mobile Telephone
NRA National Regulatory Authority
NSH Nor Cooperation on Disability
NSI Network Solutions Incorporated
NSO National Standards Organisations
NSP Network Service Protocol
NTII National Tele-Immersion Initiative
NTIA National Telecommunications and Information Administration (USA)
NTS Number Translation Services
NTSC National Television System Committee

O
OCN Operational Carrier Number
ODSI Optical Domain Service Interconnect
OECD Organisation for Economic Cooperation and Development
OECS Organization of Eastern Caribbean States
OEM Original Equipment Manufacturer
OFDM Orthogonal Frequency Division Multiplexing
OFTEL Office of Telecommunications (UK)
OHG Operators Harmonization Group
OIF Optical Internet Forum
OLED Organic Light Emitting Diode
OMTN Operation and Maintenance for Telecoms Networks
ONA Open Network Architecture
ONP Open Network Provision
OOPS Object-Oriented Programming System
OPEN Orientation by Personal Electronic Navigation (TIDE project)
ORBIT Open Market Reorganization for the Betterment of International Telecommuinications
OSCE Organization for Security and Cooperation in Europe
OSI Open Systems Interconnect(ion) (ISO, ITU-T)
OSRP Optical Switching and Routing Protocol
OSS Operating Support Systems; Operations Systems and Software

P
PABX Private Automatic Branch Exchange
PAC Programme Advisory Committee (ETSI)
PACS Personal Access Communications System
PAIX Palo Alto Internet Exchange
PATU Pan African Telecommunication Union
PBX Private Branch Exchange
PCCW Pacific Century Cyber Works
PCG Pacific Century Group
PCI Programmable Communications Interface
PCM Pulse Code Modulation
PCN Personal Communication Network
PCS Personal Communications Services
PDA Personal Digital Assistant
PDF Portable Document Format
PGP Pretty Good Privacy
PHARE Poland-Hungary Assistance on Economic Reconstruction
PHARE also Programme for Harmonised Air Traffic Management Research in Eurocontrol
PKI Public Key Infrastructure
PMR Private Mobile Radio
POP Point of Pressure
POTS Plain Old Telephone Service
POS Point Of Sale (network)
POTS Plain Ordinary Telephone Service
POVES Portable Opto-electronic Vision Enhancement System for visually disabled persons (TIDE project)
PPM Price Per Minute
PSDN Packet Switched Data Network
PS Packet Switching
PSN People with Special Needs; Public Switched Network
PSO Protocol Supporting Organization
PSPDN Packet Switched Public Data Network
PSTN Public Switched Telephone Network
PTC Pacific Telecommunications Conference
PTCL Pakistani Telecommunications Corporation Limited
PTO Public Telecommunication Operator
PTS Public Telecommunications System

Q
QoS Quality of Service

R
RACE Research and development in Advanced Communications technologies in Europe
RACF Radio Access Control Funktion
RARE Réseaux Associés pour la Recherche Européen (Associated networks for European research CEC project)
RAVE Remote Access Verification Environment
RBOC Regional Bell Operating Company
RDS Radio Data System
RIAA Recording Industry Association of America
RIP Regulatory Investigative Powers
RIPE Resaux IP Europeens
RIR Regional Internet Registries
RISC Reduced Instruction Set Computer
RLSD Receive Line Signal Detector
RSS Residential Service Site
RT Rehabilitation Technology
RTD Research and Technical Development
RTF Radio Terminal Function

S
SADC Southern Africe Development Community
SAR Specific Absorption Rate
SATRA South African Telecommunications Regulatory Agency
SATURN Smart Card and Terminal Usability Requirements and Needs (TIDE project)
SCSI Small Computer Systems Interface
SCVF Single Channel Voice Frequency
SDMI Secure Digital Music Initiative
SDH Synchronous Digital Hierarchy-based
SDN Switched Digital Netwrok
SDRU Sensory Disabilities Research Unit
SDSL Symmetric Digital Subscriber Line
SESAT Siberean European Satellite
SET Secure Electronic Transfer
SFA Systems Financial Analysis
SGML Standard Generalized Markup Language
SGSN Serving GPRS Support Node
SHDSL Symmetrical High-bit-rate DSL
SID System ID number
SIM Set Initialization Mode (HDLC); Subscriber Identity Module;Subscriber Information Module
SIP Session Initiation Protocol; Smart Image Processor
SITA Sociétée Internationale de Télécommunications Aéronautiques
SLA Service Level Agreement
SLC Subscriber Line Charge
SLM Single Longitudinal Mode
SMART Strategy for Mobile Advanced Radio Telecommunications (DG XIII)
SMDS Switched Multi-megabit Data Service (Bellcore)
SME Small and Medium-sized Enterprises
SMIL Synchronized Multimedia Integration Language
SMP Significant Market Power
SMS Short Message Service
SMTP Simple Mail Transfer Protocol (IETF)
SNA Synchronous Network Architecture; Systems Network Architecture
SOGIT Senior Officials Group for Information Technology
SOHO Small Office/Home Office
SONET Synchronous Optical Network
SPARC Scalable Performance Architecture; Scholarly Publishing and Academic Resources Coalition
SPP Sequenced Packet Protocol (NetWare)
SPRINT Strategic Programme for Innovation and Technology Transfer in Europe DG XIII
SSBSC Single Sideband Suppressed Carrier
SSL Secure Socket Level (data scrambler)
STAPL Standard Test and Programming Language
STB Set Top Box
STD Subscriber Trunk Dialling
STM Synchronous Transfer Mode
STRIDE Science and Technology Research into Innovative Developments in Europe
SWIFT Society for Worldwide Interbank Financial Telecommunications (consortium of banks)
T
TAC Terminal Access Controller
TACD TransAtlantic Consumer Dialog
TAG Technical Advisory Group; Telecommunications Action Group
TAIS Total Aircraft Information System
TCAP Transaction Capabilities Application Part
TCP/IP Transmission Control Protocol/Internet Protocol
TC HF Technical Committee Human Factor (ETSI)
TCIF Telecommunications Industry Forum
TCP Transmission Control Protocol
TCT Toll Connecting Trunk
TDCC Transportation Data Coordination Committee
TD-CDMA Time Division-code CDMA
TDA Time Distance of Arrival
TDD Telecommunication Device for the Deaf (Telecommunication Display Device); Time Division Duplex
TDM Time Division Multiplexing
TDMA Time Division Multiple Access
TDS Time Division Switching
TELSCAN TELematic Standards and Coordination of ATT Systems in relation to elderly and disabled travellers
TER Technical basis for regulation
TERENA Trans-European Research and Education Networking Association
TIA Telecommunications Industry Association
TIDE (formerly) Technology Initiative for Disabled and Elderly people and Telematics for the Integration of Disabled and Elderly people
TINA-C Telecommunications Intelligent Networking Architecture Consortium
TIST Telecommunication Information Science. Universal Mobile Telephony Technology System
TLD Top Level Domain
TMA Telecommunications Managers' Association
TPSA Telekomunikacja Polska SA
TR Token Ring
TRAC Technical Recommendations Application Comittee
TSAG Telecommunication Standardization Advisory Group
TSB Telecommunications Standardization Board (ITU)
TTP Trusted Third Party
TTY Teletype(writer)
TUG Telecommunication User Group

U
UAS Universal Access System
DU Universal Design
UDM Unbundled Network Elements
UDRP Uniform domain namedisputeResolution Policy (or Panel)
UM Unified Messaging
UMTS Universal Mobile Telecommunications System
UN/CE United Nations Commission for Europe
UNL Universal Networking Language
UPU Universal Postal Union
URETS Uniform Rules for Electronic Trade and Settlement
URI Uniform Resource Identifier
URL Uniform Resource Locator (WWW)
USB Universal Serial Bus
USER Usability Requirements Elaboration for Rehabilitation Technology (TIDE project)
USI Universal Services Issues
USISPA US ISP Alliance
USTR U.S. Trade Representative
UUCP Unix-to-Unix Copy Protocol
UWCC Universal Wireless Communications Consortium

V
VA Validation Authority
VAN Value Added Network
VATM Verband der Telekommunikations- und Mehrwertdiensten
VDE Verein Deutscher Elektroningenieure (Society of German Electrical Engineers)
VDSL Very High-speed Digital Subscriber Line
VDT Visual Display Terminal
VDU Visual Display Unit
VERONICA Very Easy Rodent-Oriented Network Index to Computerized Archives (Internet)
VISP Virtual Internet Service Provider
VLIW Very Long Instruction Word
VME Virtual Machine Environment (a common industrial computer architecture)
VMO Virtual Mobile Operators
VMS Voice Messaging System
VOD Video On Demand
VoDSL Voice-over-DSL
VoIP Voice-over Internet Protocol
VON Voice Over the Net
VPN Virtual Private Network
VPOP Virtual Point-Of-Preference
VSAT Very Small Aperture Terminal

W
W3C World Wide Web Consortium
WAB Web Accessibility for the Blin
WAI Web Accessibility Initiative
WAIS Wide Area Information Server
WAP Wireless Application Protocol (Sometimes: Wait And Pray)
W-CDMA Wide-band CDMA
WAI Web Accessibility Initiative
WAP Wireless Application Protocol
WARC World Administrative Radio Conference
WASP Wireless ASP
WATS Wide Area Telecommunications Service
WBU World Blind Union
W-CDMA Wideband Code Division Multiple Access
WDM Wave Division Multiplexing
WFD World Federation of the Deaf
WHO World Health Organisation
WIM Wireless Identification Module
WIMP Windows, Icons, Mouse, and Pull-down menus
WIPO World Intellectual Property Organization
WIVA Wireless Internet Venture Association
WLAN Wireless Local Area Network
WLL Wireless Local Loop
WLS Wireless Location Services
WP Working Paper
WPASET Web Pago Accessibility Self-Evaluation TEst
WML Wireless Markup Language
WP4 Work Program 4
WRC World Radiocommunications Conference (branch of ITU)
WTC World Trade Center
WTCA World Trade Center Association
WTSC World Telecommunication Standardization Conference (ITU)
WTO World Trade Organization

X
xDSL x-Type Digital Subscriber Line
XML Extended Mark-up Language