① This is ... (speaking).

② This is 7863469.

③ ... is here. 千万不能说 I'm ...

2. 询问对方是谁，可以问：

① Who's that?

② Who's speaking (calling), please? 千万不能问 Who are you?

3. 询问对方是不是某人，应问：

Is that ...? 或 Is that ... speaking (calling)? 绝对不能问 Are you ...?

4. 通话时，有重要的事情要处理，不得不中断通话，要有礼貌地请对方稍等，可以说：

① Hold on, please.

② Just a moment, please.

③ Wait a minute, please.

5. 通话时，应说明打电话的意图或征求对方的意见，可以说：

① I'm calling to tell you ...

② I'm calling to ask you ...

6. 打电话时，拨错了电话号码，应说：Sorry, wrong number.