| TACS |
|
Total Access Communications System |
| TCAP |
|
Transaction Capabilities Application Part |
| TCDMA |
|
Time Division CDMA (Code Division Multiple Access) |
| TCH |
|
Traffic Channel |
| TCM |
|
Trellis Coded Modulation |
| TDD |
|
Time Divsion Duplex |
| TDFH |
|
Time Division Frequency Hopping |
| TDMA |
|
Time Division Multiple Access |
| TDN |
|
Temporary Directory Number |
| TETRA |
|
TErrestrial Trunked RAdio (formerly Trans-European Trunked RAdio) |
| TIA |
|
Telecommunications Industry Association |
| TIU |
|
Trunk Interface Unit |
| TOI |
|
Third Order Intercept |
| TTIB |
|
Transparent Tone-In-Band |
| TUP |
|
Telephone User Part |
| Tx |
|
Transmitter |
