 |
| |||
| ring line (Speleo) | |||
| signal line (в телефонии); signaling line (в телефонии) | |||
| линия вызова: 129 phrases in 13 subjects |
| Caspian | 1 |
| Communications | 3 |
| Electronics | 7 |
| Information technology | 3 |
| Makarov | 9 |
| Mass media | 60 |
| Military | 2 |
| Rail transport | 1 |
| Security systems | 1 |
| Technology | 1 |
| Telecommunications | 37 |
| Telephony | 3 |
| Television | 1 |