| Acronym | Description |
|---|
| SMS | Short Message Service |
| AMPS | Advanced Mobile Phone Service |
| BCC | Base station Colour Code |
| BSC | Base Station Controller |
| BSIC | Base Station Identity Code |
| BSS | Base Station Subsystem |
| BSSAP | BSS Application Part |
| BSSMAP | BSS Management Application Part |
| BSSOMAP | BSS Operations and Maintenance Application Part |
| BTS | Base Transciever Station |
| BTSM | BTS Management protocol |
| CC | Circuit mode connection Call protocol |
| CCITT | The Consultative Committee for International Telegraph and Telephony |
| CGI | Cell Global Identifier |
| CM | Circuit Mode connection call protocol |
| DNS | Domain Name System |
| DTAP | Direct Transfer Application Part |
| ECC | Emergency Call Centre |
| EIR | Equipement Identity Register |
| ETS | European Telecommunications Standard |
| ETSI | European Telecommunications Standardization Institute |
| FAC | Final Assembly Code |
| GPS | Global Positioning System |
| GSM | Global System for Mobile communications |
| HLR | Home Location Register |
| HO | HandOver |
| IMEI | International Mobile Equipment Identity |
| IMSI | International Mobile Subscriber Identity |
| ID | Identification |
| IP | Internet Protocol |
| ISDN | Integrated Services Digital Network |
| ISUP | ISDN User Part |
| ITU | International Telecommunications Union |
| LA | Location Area |
| LAN | Local Area Network |
| LAI | Location Area Identifier |
| LOS | Line Of Sight |
| MAP | Mobile Application Part |
| MTP | Message Transfer Part |
| MM | Mobility Management protocol |
| MS | Mobile Station |
| MSC | Mobile Switching Centre |
| MSISDN | Mobile Station ISDN number |
| MSL | Mobile Station Location |
| MSLC | Mobile Station Location Centre |
| MSLP | Mobile Station Location Protocol |
| MSRN | Mobile Station Roaming Number |
| MSRN | Mobile Station Roaming Number |
| NCC | Network Colour Code |
| NLOS | Non - Line Of Sight |
| PERL | Practical Extraction and Report Language |
| PLMN | Public Land Mobile Network |
| RR | Radio Resources protocol |
| RXLEV | Received signal level |
| SCCP | Signalling Connection Control Part |
| SIM | Subscriber Identity Module |
| SNR | Serial Number |
| SS7 | Signalling System 7 |
| SW | Switch |
| TAC | Type Approval Code |
| TACS | Total Access Communication System |
| TCP | Transport Control Protocol |
| TRX | Transciever (Transmitter/Receiver) |
| TX | Transmitter |
| RX | Receiver |
| UTC | Universal Time Coordinated |
| VLR | Visitor Location Register |
| SMPP | Short Message Peer to Peer protocol |
| J2ME | Java 2 Platform, Micro Edition |
| MMS | Multimedia Messaging System |
| WAP | Wireless Access Protocol |
| MCC | Mobile Country Code |
| MNC | Mobile Network Code |
| MT | Mobile Terminated |
| MO | Mobile Originated |
| 1G | First Generation |
| 2G | Second Generation |
| 3G | Third Generation |
| 3GPP | Third Generation Partnership Project |
| ASM | Asynchronous Transfer Mode |
| CAMEL | Customised Application for Mobile network Enhanced Logic |
| CDMA | Code Division Multiple Access |
| CLI | Caller Line Identification |
| CLIR | Calling Line Identification Restriction |
| DAC | Digital to Analogue Converter |
| VOIP | Voice Over IP |
| DCS | Data Coding Scheme |
| UDH | User Data Header |
| UDHI | User Data Header Indicator |
| EDGE | Enhanced Data Rates for GSM Evolution |
| EMS | Extended Message Service |
| FDMA | Frequency Division Multiple Access |
| TDMA | Time Division Multiple Access |
| WCDMA | Wideband Code Division Multiple Access |
| GERAN | GSM/EDGE Radio Access Network |
| GGSN | Gateway GPRS Support Node |
| GMSC | Gateway Mobile Switching Centre |
| GPRS | GeneralSupport Packet Radio Service |
| GSMS | GPRS Short Message Service |
| HTTP | HyperText Transfer Protocol |
| IP | Internet Protocol |
| PDU | Protocol Data Unit |
| QoS | Quality of Service |
| SLA | Service Level Agreement |
| SI | Status Indicator |
| SMSC | Short Message Service Centre |
| UMTS | Universal Mobile Telecommunications Systems |
| USIM | Universal Subscriber Identity Module |
| OPC | Originating Point Code |
| DPC | Destination Point Code |
| TON | Type Of Number |
| NAI | Nature of Address Indicator |
| NPI | Numbering Plan Indicator |
| ESME | External Short Message Entity |
| UCP | Universal Computer Protocol |
| EMI | External Machine Interface |
| LNP | Local Number Portability |
| PC | Point Code |
| SSP | Service Switching Point |
| STP | Signal Transfer Point |
| SCP | Service Control Point |
| GT | Global Title |
| SEP | Signaling End Point |
| TUP | Telephone User Part |
| TCAP | Transaction Capabilities Applications Part |
| OMAP | Operations, Maintenance and Administration Part |
| SU | Signaling Unit |
| FISU | Fill-In Signal Unit |
| LSSU | Link Status Signal Unit |
| MSU | Message Signal Unit |
| BSN | Backward Sequence Number |
| BIB | Backward Indicator Bit |
| FSN | Forward Sequence Number |
| FIB | Forward Indicator Bit |
| SIO | Service Information Octet |
| MTNS | Maintenance Special Message |
| SNM | Signaling Network Management Message |
| SLS | Signaling Link Selection |
| ATM | Asynchronous Transfer Mode |
| SAAL | Signaling ATM Adaptation Layer |
| IAM | Initial Address Message |
| ACM | Address Complete Message |
| REL | Release Message |
| RLC | Release Complete Message |
| GTT | Global Title Translation |
| SIO | Service Information Octet |
| kbps | kilobits per second |
| DLR | Delivery Receipt |
| CBFSMRG | CardBoardFish Short Message Routing Gateway |
| CBF | CardBoardFish |
| OA | Originating Address |
| IVRS | Interactive Voice Response Software |
| IVR | Interactive Voice Response |
| OS | Operating System |
| CID | Circuit Identifcation Code |
| ATI | Any Time Interrogation |
| PSI | Provide Subscriber Information |
| SRI | Send Routing Info |
| FSM | Forward Short Message |
| P2P | Person to Person/Peer to Peer |
| DR | Delivery Receipt |
| GBP | Great British Pound |
| EUR | Euro |
| ec | eurocents |
| SIGTRAN | Signaling Transport |
| CIMD | Computer Interface Message Distribution (Nokia) |
| CIMD2 | Computer Interface Message Distribution Two (Nokia) |
| UK | United Kingdom |
| ACK | Acknowledgement |
| HSPA | High Speed Packet Access |
| HSUPA | High Speed Uplink Packet Access |
| HSDPA | High Speed Downlink Packet Access |
| WCDMA | Wideband Code Division Multiple Access |
