| Abbreviation | Definition |
|---|---|
| TDSAT | Telecom Dispute Settlement and Appellate Tribunal |
| TDSAT | Telecom Dispute Settlement Appellate Tribunal |
| TDSAT | Telecom Disputes Settlement and Appellate Tribunal |
| TDSAT | Telecom Disputes Settlement Appellate Tribunal |
| TD-SCDMA | Time-division Synchronous Code-division Multiple Access |
| TDU | T1 Distribution Unit |
| TDU | Technology Down Under |
| TE | Terminal Equipment |
| TEAF | Telecommunications Education Access Fund |
| TEDA | Telecommunications Event Data Analytics |
| TEDP | Telecommunication Equipment Distribution Program |
| TEDP | Telecommunications Equipment Distribution Program |
| TEHO | Tail End Hop Off |
| TEI | Terminal Endpoint Identifier |
| TEL | TELephone |
| TEL&TEL | TELephone and TELegraph |
| TELCO | telecom |
| TELCO | Telecommunications |
| TELCO | Telephone Conference |
| TELECOM | Telecommunications |