 |
| |||
| three party call | |||
| refer-back call; inquiry | |||
| call hold | |||
| consultation call | |||
| |||
| enquiry call | |||
|
double appel : 26 短语, 3 学科 |
| 电信 | 11 |
| 计算 | 3 |
| 通讯 | 12 |
|
| |||
| three party call | |||
| refer-back call; inquiry | |||
| call hold | |||
| consultation call | |||
| |||
| enquiry call | |||
|
double appel : 26 短语, 3 学科 |
| 电信 | 11 |
| 计算 | 3 |
| 通讯 | 12 |