 |
| |||
| speaking and ringing key | |||
| talk-ringing key | |||
| combined listening and speaking key | |||
| talk ringing key | |||
| listening-and-speaking key | |||
| опросно-вызывной ключ: 2 phrases in 2 subjects |
| American usage, not spelling | 1 |
| British usage, not spelling | 1 |
|
| |||
| speaking and ringing key | |||
| talk-ringing key | |||
| combined listening and speaking key | |||
| talk ringing key | |||
| listening-and-speaking key | |||
| опросно-вызывной ключ: 2 phrases in 2 subjects |
| American usage, not spelling | 1 |
| British usage, not spelling | 1 |