| |||
| абонентская сигнализация | |||
|
Subscriber Signalling : 6 phrases in 4 subjects |
| Communications | 1 |
| Computer networks | 1 |
| Technology | 1 |
| Telecommunications | 3 |
| |||
| абонентская сигнализация | |||
|
Subscriber Signalling : 6 phrases in 4 subjects |
| Communications | 1 |
| Computer networks | 1 |
| Technology | 1 |
| Telecommunications | 3 |