| Abbreviation | Definition |
|---|---|
| FTTP | Fiber To The Premises |
| FTTR | Fiber To The Router |
| FTTXI&C | Fiber to the spot (predetermined point) Installation and Commisioning |
| FTW | France Telecom Wireless |
| FUD | Fair Use Doctrine |
| FUNI | Frame (relay) User Network Interface |
| FUP | Fair Use Policy |
| FWA | Fixed Wireless Access |
| FWS | Fixed Wireless Service |
| FWT | Fixed Wireless Terminal |
| FX | Foreign Exchange |
| FXO | Foreign Exchange Office |
| FXS | Foreign Exchange Subscriber |
| GAT | GSM, AMPS, and TDMA |
| GATE | GPRS (General Packet Radio Service) Application Test Environment |
| GBET | Global Business Exchange For Telecom |
| GBT | Ground Based Tower |
| GC | Global Communications |
| GCA | General Communication Area |
| GCS | Global Communication System |