| |||
| Vermittlungsdienst m | |||
| Vermittlungsbetrieb m | |||
|
switching service : 32 phrases in 7 subjects |
| Communications | 25 |
| Electronics | 1 |
| General | 1 |
| Mechanic engineering | 1 |
| Radio | 1 |
| Telecommunications | 2 |
| Telephony | 1 |
| |||
| Vermittlungsdienst m | |||
| Vermittlungsbetrieb m | |||
|
switching service : 32 phrases in 7 subjects |
| Communications | 25 |
| Electronics | 1 |
| General | 1 |
| Mechanic engineering | 1 |
| Radio | 1 |
| Telecommunications | 2 |
| Telephony | 1 |