| Subject | English | German |
| commun. | data over voice | dem Sprachband überlagerte Datenübermittlung (Centrex service attribute, data rate typically 19.2 kbit/s; at 40 kHz carrier frequency in DTAG TEMEX and public phonecard telephones) |
| commun. | data over voice | fernsprechüberlagerte Daten |
| commun. | data-over-voice channel | Überlagerungskanal (TEMEX, Centrex, phonecard phone) |
| commun. | data-over-voice equipment | DOV-Einrichtung |