| antelefonieren | call phone ring call up give someone a bell give someone a call |
| telefonieren | telephone |
| interponieren | mediate appeal |
| interferieren | interfere |
| interessieren | interest |
| internieren | intern |
| interpolieren | interpolate |
| intervenieren | intervene intercede interfere |
| unterminieren | undermine |
| Telefonistin | telephone operator |
| Telefonhörer | handset telephone receiver |
| Telefonie | telephony |
| teleportieren | teleport |
| akzelerieren | accelerate advance promote |
| handyfonieren | cell phone |
| alternieren | alternate |
| ameliorieren | ameliorate |
| anellieren | anellate |
| antagonisieren | antagonize |
| antikisieren | patinate |