| Subject | English | German |
| telecom., BrE | operator set | Platz (PABX, PABX) |
| telecom., BrE | operator set | Vermittlungsplatz (PABX, PABX) |
| gen. | operator set | Vermittlungsapparat |
| telecom., BrE | operator set | Vermittlungsapparat (PABX, PABX) |
| telecom., BrE | operator set | Abfrageplatz (PABX, PABX) |