| A | |
| AAA | Authentication, Authorization, Accounting |
| AAL2 | ATM Adaptation Layer |
| ACD | Automatic Call Distributor |
| ACTS | Adavanced Communication Technologies and Services |
| ASM | Add-Drop Multiplexer |
| ADSL | Asymmetric Digital Subscriber Line |
| AGW | Access Gateway |
| ALMAP | Alcated Management Platform |
| API | Application
Programming Interface |
| ASAM ATM | Subscriber Access Multiplexer |
| ASIC | Application Specific Integrated Circuit |
| ATM | Asynchronous Transfer Mode |
| ATU | Access Termination Unit |
| B | |
| BBRAN | Broad Band Remote Access Network |
| BER | Bit Error Ratio |
| BSC | Base Station Controller |
| BSS | Base Station Subsystem |
| BSS | Broadcasting Satellite Service |
| C | |
| CCB | Customer Care and Biling |
| CDMA | Code Division Multiple Acces |
| CLEC | Competitive Local Exchange Carrier |
| CMIS | Common Management Information Service |
| CORBA | Common Object Request Broker Architecture |
| CSN | Circuit Switched Network |
| CSTA | Computer Supported Telecommunication Application |
| CTI | Computer
Telephony Integration |
| D | |
| DECT | digital enhanced Cordless Telecommunication |
| DS-CDMA | Direct Sequence CDMA |
| DSL | Digital Subscriber line |
| DSLAMSDL | Access Multiplexer |
| DST | Dispersion Supported Transmission |
| DWDM | Dense Wavelength Division Multiplexing |
| E | |
| EDGE | Enhanced Datarate for GSM Evolution |
| EF | Expedited Forwarding |
| EIRP | Equivalent Isotropic Radiated Power |
| EPFD | Equivalent Power Flux Density |
| ETSI | European Telecommunication Standards Institute |
| F | |
| FDD | Frequency Division Duplexing |
| FIFO | First In, First Out |
| FSS | Fexed Satellite Service |
| FM | Failivicy Managemant |
| FPLMTS | Future Public Land Mobile System |
| G | |
| GAP | Generic Access Protocol |
| GMM | Global MultiMedia |
| GPRS | General Packet Radio Service |
| GSM | Global System for Mobile Communication |
| GSO | Geostationary Satellite Orbit |
| H | |
| HFC | Hybrid Fiber Coax |
| HLR | Home Location Register |
| I | |
| IETF | Internet Engineering Task Force |
| ILEC | Incumbent Local Exchange Carrier |
| IMT | International Mobile Telecommunications |
| IN | Inteligent Network |
| IP/TCP | Internet Protocol / Transmission Control |
| IP | Internet Protocol |
| IP-PCX | Internet Protocol - Private Communication Excange |
| ISA | Integrated STM/ATM |
| ISDN | Integrated Services Digital Network |
| ISP | Internet Service Provider |
| ISUP | ISDN User Part |
| ITU | International Telecommunications Union |
| IVR | Interactive Voice Response |
| L | |
| LAN | Local Area Network |
| LEC | Local Exchange Carrier |
| LEO | Low Earth Orbit |
M |
|
| MAP | Mobils Applioation Part |
| MeXe | Mobile Station Execution Environment |
| MGC | Media Gateway Cotroller |
| MGCP | Media Gateway Control Protocol |
| MPLS | Multi-Protocol Label Switching |
| MSAN | Multi-Service Access Multiplexer |
| MSC | Mobile Services Switching Center |
| MSS | Mobile Satellite System |
|
|
|
|
| N | |
| NAS | Network Access Server |
| NGSO | Non-Geostationary Satellite Orbit |
| NML | Network Management Layer |
| NMS | Network Management System |
| NRZ | Non-Return-to-Zero |
| NSP | Network Service Provider |
| NT | Network
Termination |
| O | |
| OCH | Optical Channel |
| OMC | Operations And Maintenance Center |
| OMS | Optical Multiplex Section |
| ON | Optical Network |
| OPS | Optical Path Switch |
| P | |
| PDC | Personal Digital Cellular |
| PDH | Plesiochronous Digital Hierarchy |
| PFD | Power Flux Density |
| PHS | Personal Handyphone System |
| PLMN | Public Land Mobile Network |
| PMD | Polarization Mode Dispersion |
| PNNT | Public Network-Network Interface |
| POP | Point of Pressnce |
| POTS | Plain Old Telephone Service |
| PSTN | Public Switched Telephone Network |
| PVC | Permanent Virtual Cirouit |
| Q | |
| QoS | Quality of Service |
| QPSK | Quadrature Phase Shift Keying |
| R | |
| RACE | Research into Advanced Communications in Europe |
| RAN | Remote Access Node |
| RAS | Remote Access Server |
| RNC | Radio Network Controller |
| RSU | Remote Subscriber Unit |
| RTP | Real Time Protocol |
| RZ | Return-to-Zero |
| S | |
| SAT | SIM Application Toolkit |
| SCC | Satellite Cotrol Center |
| SCE | Service Creation Environment |
| SCN | Switched Circuit Network |
| SCP | Service Control Point |
| SCP | Session Contro Protocol |
| SDH | Synchronous Digital Hierarchy |
| SG | Signaling Gateway |
| SIM | Subscriber Identity Module |
| SIP | Session Initiation Protocol |
| SKAN | SkyBridge Access Node |
| SKT PRO | SkyBridge Professional Terminal |
| SKT RES | SkyBridge Residential Terminal |
| SLA | Service Level Agreement |
| SUTE | Subscriber Line Terminating Equipment |
| SMB | Small and Medium size Businesses |
| SMC | Service Management Center |
| SNMP | Simple Network Management Protocol |
| SONET | Synchronous Optical Network |
| SS7 | Signaling System No.7 |
| T | |
| TAC | Technical Assistance Center |
| TAPI | Telephony Application Programming Interface |
| TCP | TRansmission Control Protocol |
| TD-CDMA | Time Division combined with CDMA |
| TDD | Time Division Duplexing |
| TDM | Time Division Multiplex |
| TDMA | Time Division Multiple Access |
| TGMS | Third Generation Mobile Communication System |
| TGW | Trunking Gateway |
| TMN | Telecommunication |
| TSAPI | Telephony Services Application Programming Interface |
| TT&C | Tracking, Telemetry and Command |
| U | |
| UAG | Universal Access Gateway |
| UMTS | Universal Mobile Telecommunication System |
| UNI | User-Network Interface |
| URL | Unified Resource Locator |
| UTRAN | UMTS Terrestrial Radio Access Network |
| V | |
| VC | Virtual Container |
| VHE | Virtual Home Environment |
| VLR | Visitor Location Register |
| VoATM | Voice over Asynchronous Transmission Mode |
| VoIP | Voice over Internet Protocol |
| VPN | Virtual Private Network |
| W | |
| WAN | Wide Area Network |
| WAP | Wireless Application Protocol |
| W-CDMA | Wideband Code Division Multiple Access |
| WDM | Wavelength Division Multiplexing |
| WLL | Wireless Local Loop |
| WRC | World Radiocommunications Conference |
| WTA | Wireless Telephony Application |
| 3 | |
| 3G | Third Generation |
| 3GPP | Third Generation Partnership Project |
|
