| |||
| Anrufzeit f; Verbindungsdauer f | |||
| Verbindungszeit f | |||
| Gesprächsdauer f | |||
|
call time : 45 phrases in 10 subjects |
| Communications | 12 |
| Computers | 1 |
| Electronics | 1 |
| Finances | 15 |
| Information technology | 1 |
| Social science | 2 |
| Technology | 5 |
| Telecommunications | 6 |
| Telegraphy | 1 |
| Telephony | 1 |