 |
| |||
| telephone extension | |||
| extension telephone set | |||
| bridging telephone | |||
| параллельный телефонный аппарат: 7 phrases in 4 subjects |
| Electronics | 1 |
| Information security and data protection | 1 |
| Security systems | 3 |
| Technology | 2 |
|
| |||
| telephone extension | |||
| extension telephone set | |||
| bridging telephone | |||
| параллельный телефонный аппарат: 7 phrases in 4 subjects |
| Electronics | 1 |
| Information security and data protection | 1 |
| Security systems | 3 |
| Technology | 2 |