| telephone message | Telefongespräch |
| telephone message service | Fernsprechauftragdienst |
| telephone monitoring | Telefonüberwachung |
| telephone mouthpiece | Telefonmuschel |
| telephone network | Fernsprechnetz |
| telephone networks | Telefonnetze |
| telephone notification service | Benachrichtigungsdienst |
| telephone number | Rufnummer |
| telephone number , tel. no. | Fernsprechnummer |
| Telephone Number Mapping | Telephone Number Mapping |
| Telephone number portability | Rufnummernmitnahme |
| Telephone numbering plan | Telefonvorwahl |
| telephone off the hook | ausgehängtes Telefon |
| telephone office | Fernsprechamt |
| telephone operating company | Fernsprechverwaltung |
| telephone operation | Telefonbetrieb |
| telephone operator | Auskunft |
| telephone order | telefonische Bestellung |
| telephone pliers | Telefonzange |
| telephone plug | Klinkenstecker |
| telephone pole | Telefonmast |
| telephone poles | Telefonmasten |
| telephone post | Telefonmast |
| telephone receiver | Telefonhörer |
| telephone receivers | Telefonhörer |
| telephone recorder | Anrufbeantworter |
| telephone register | Telefonregister |
| telephone relay | Fernsprech-Relais |
| telephone rental | Fernsprechgebühr |
| telephone repeater | NF-Verstärker |
| telephone retailer | Telefonhändler |
| telephone sales | Telefonverkauf |
| telephone satellite | Telefonsatellit |
| telephone sb. | jdn. anrufen |
| telephone selling | Telefonverkauf |
| telephone service | Fernsprechdienst |
| telephone service fuse | Fernmeldesicherung |
| telephone services | Telefondienste |
| telephone set | Telefon |
| telephone sex | Telefonsex |
| telephone shop | Telefonladen |
| telephone sidetone | Rückhören |
| telephone signal | Fernsprechsignal |
| telephone socket | Telefonbuchse |
