391 I ’m going to dial the number。

392 The telephone is ringing。

电话铃响了。

393 No one is answering the phone.。

394 My friend phoned me at 10 a.m. yesterday。

395 The phone is busy。

电话占线。

396 Sorry to have kept you waiting。

抱歉使你久等了。

397 Who do you want to speak to？

398 What number are you calling？

399 Operator， you gave me a wrong number。

总机，你给我接错号码了。

400 Where are you calling from？

你从哪里打来的？