 |
| English | German |
| CT3 | Personal Communications Network |
| CT1 standard of the DTAG | Sinus-Standard |
| public CT2 service | öffentlicher Funktelefondienst (GB, Ferranti telepoint system) |
| public CT2 system | Telepoint öffentliches FunktelefonSystem (BT, comprises handset, home base station and access to public 'phonepoint', not compatible with DECT, DTAG 'Birdie', GB 'Rabbit' (Hutchison), now defunct in both countries) |