| Telefonseelsorge | crisis hotline |
| Telefonterror | telephone harassment telephone terror |
| Telefonzelle | telephone booth telephone box |
| Telefonkarte | phonecard |
| Telefonsex | phone sex |
| Telefongespräch | telephone conversation |
| Telefonhörer | handset telephone receiver |
| Telefonleitung | telephone line |
| telefonieren | telephone |
| Telefonalphabet | phonetic spelling alphabet |
| Telefongesellschaft | telco |
| Telefonist | telephone operator |
| Telefonistin | telephone operator |
| Telefonstreich | prank call |
| Telefonverkauf | telemarketing |
| Telefonverkäufer | telemarketer |
| Telekinese | psychokinesis |
| Telefonie | telephony |
| Telefonmast | utility pole |
| Telefonnummer | telephone number |