| 2G | 2nd generation technology |
| 2.5G | Usually refers to GPRS, an enhancement to the existing 2G GSM networks |
| 3G | 3rd generation technology |
| API | Active Programming Interface |
| BES | Blackberry Enterprise Server |
| CE | Compact Edition |
| CSD | Circuit Switched Data |
| EPOC | Allegedly, 'Electronic Piece of Cheese' |
| FDMA | Frequency Division Multiple Access |
| GPRS | General Packet Radio Service |
| GSM | Global System for Mobile Communications |
| HSCSD | High Speed Circuit Switched Data |
| IMAP | Internet Messaging Access Protocol |
| ITU | International Telecommunications Union |
| PDC | Personal Digital Cellular |
| PIM | Personal Information Management |
| POP3 | Post Office Protocol Version 3 |
| SMTP | Simple Mail Transport Protocol |
| TCP/IP | Transfer Control Protocol/Internet Protocol |
| UMTS | Universal Mobile Telecommunications System |