 |
|
private automatic exchanges : 15 phrases in 7 subjects |
| Business | 3 |
| Communications | 7 |
| Economics | 1 |
| Postal service | 1 |
| Technology | 1 |
| Telecommunications | 1 |
| Telephony | 1 |
|
|
private automatic exchanges : 15 phrases in 7 subjects |
| Business | 3 |
| Communications | 7 |
| Economics | 1 |
| Postal service | 1 |
| Technology | 1 |
| Telecommunications | 1 |
| Telephony | 1 |