 |
| |||
| extension ringing tone pattern (ssn) | |||
| extension: 16 phrases in 5 subjects |
| Abbreviation | 7 |
| Information technology | 3 |
| Microsoft | 1 |
| Military | 3 |
| University | 2 |
|
| |||
| extension ringing tone pattern (ssn) | |||
| extension: 16 phrases in 5 subjects |
| Abbreviation | 7 |
| Information technology | 3 |
| Microsoft | 1 |
| Military | 3 |
| University | 2 |