Making a phone call isn't always easy - especially if you don't know the person on the other end of the line very well…… Here are some expressions you can use if you're on the phone：

　　-Hello， is that ……？

　　-Can I speak to ……， please.

　　-Hello， this is …… calling from …… in ……

　　-Could you ask …… to call me back， please？

　　-Thanks for calling back.

　　-Good morning， I'd like to speak to ……

　　-Is …… available， please？ My name's ……

　　-Could you give …… a message， please？

　　-My number is ……

　　-I'm so sorry， I've got the wrong number

　　-speaking.

　　-Oh hello， ……， this is …… speaking.

　　-I'm afraid …… is in a meeting/ not in the office/ still at lunch/ on holiday this week/ away today/ not available just now……

　　-I'll just find out if …… is in the other office/ available/ back yet.

　　-What's your （extension） number？

　　-I'll put you through to ……

　　-Can I get …… to call you back？

　　-Hold on a moment， please.