| Abbreviations | Full Forms |
| AC | Authentication Centre |
| ACRE | Authorization and Call Routing Equipment |
| AMOLED | Active Matrix Organic Light Emitting Diode |
| AMPS | Advance Mobile Phone Service |
| APP(S) | Application(s) |
| BS | Base Station |
| BSC | Base Station Controller |
| BSS | Base Station System |
| CAMEL | Customized Applications (for) Mobile-network Enhanced Logic |
| CDMA | Code Division Multiple Access |
| CMAS | Commercial Mobile Alert Service |
| CSIM | CDMA Subscriber Identify Module |
| EDGE | Enhanced Data (for) GSM Evolution |
| EE | Everything Everywhere |
| EGSM | Extended Global System (for) Mobile |
| EIR | Equipment Identify Register |
| EMS | Enhanced Message Service |
| ESN | Electronic Serial Number |
| ETSI | European Telecommunications Standards Institute |
| EUIMID | Expanded User Identity Module Identifier |
| FAC | Final Assembly Code |
| GMSC | Gateway Mobile Switching Centre |
| GPS | Global Positioning System |
| GPRS | General Packet Radio Services |
| GPU | Graphics Processing Unit |
| GSM | Global System (for) Mobile |
| GSMA | Global System (for) Mobile Association |
| GSMS | GPRS Short Message Service |
| GTP | GPRS Tunnelling Protocol |
| ICCID | Integrated Circuit Card Identifier |
| IMEI | International Mobile Equipment Identity |
| IMSI | International Mobile Subscriber Identity |
| LAI | Local Area Identity |
| LTE | Long Term Evolution |
| MAG | Mobile Access Gateway |
| MAP | Mobile Application Part |
| MEID | Mobile Equipment Identifier |
| MCC | Mobile Country Code |
| MIM | Mobile Instant Messaging |
| MIN | Mobile Identification Number |
| MMS | Multimedia Message Service |
| MNC | Mobile Network Code |
| MNO | Mobile Network Operator |
| MNP | Mobile Number Portability |
| MP3 | MPEG-1 Audio Layer-3(Moving/Motion Picture Expert Group3) |
| MP4 | MPEG-4 Part 14(Moving/Motion Picture Expert Group4) |
| MS | Mobile Station |
| MSC | Mobile Switching Center(s) |
| MSE | Mobile Station Equipment |
| MSIN | Mobile Station Identification Number |
| MT | Mobile Terminated |
| MTSO | Mobile Telephone Switching Office |
| MVNA | Mobile Virtual Network Aggregators |
| MVNE | Mobile Virtual Network Enabler |
| MVNO | Mobile Virtual Network Operator |
| NUC | Network Unlocking Code |
| OMA | Open Mobile Alliance |
| PAC | Port Authorisation Code |
| PAYG | Pay As You Go |
| PDA | Personal Digital Assistant; Portable Digital Assistant |
| PIM | Personal Information Manager |
| PIN | Personal Identification Number |
| PLMN | Public Land Mobile Network |
| PUK | Pin Unlock Key |
| R-UIM | Removable-User Identity Module |
| SAP | SIM Access Profile |
| SGPS | Simultaneous Global Positioning System |
| SIC | System Identification Code |
| SIM | Subscriber Identity Module |
| SMS | Short Message Service |
| SMSC | Short Message Service Centre |
| SNS | Social Network Service; Social Network Server |
| TMSI | Temporary Mobile Subscriber Identity |
| UI | User Interface |
| UIMID | User Identity Module Identifier |
| UMA | Unlicensed Mobile Access |
| UMTS | Universal Mobile Telecommunications System |
| USIM | Universal Subscriber Identity Module |
| VLR | Visitor Location Register |
| VOIP | Voice Over Internet Protocol |