分机号码规则、呼叫等待、电话会议、转接的翻译：Extension rules, call waiting, Conference calls, transfer 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Extension rules, call waiting, conference calls, transfer

Extension rules, call waiting, Conference calls, transfer

The extension telephone number rule, the call waits for, the teleconference, the transfer

Dialling rules, call waiting, conference calling, switching

Extension rules, call waiting, Conference calls, transfer