This is Dennis Smith.
This is Dennis Smith speaking.
Hello, John? *常用于熟人之间
Is this Mr. Dennis Smith?
Is this the finance department?
Is this Dr. Jim Baker's office?
Do you mind if I use your phone?
No, please go ahead. 不介意，请用吧
May I speak to Mr. Sato?我想找所腾先生.
May I speak with Mr. Sato?
I'd like to speak to Mr. Sato, please.
Is Mr. Sato there, please?
Mr. Sato, please. *这是最简单的说法。
Is Mark there? 马克在吗? *熟人间用
I'm sorry for calling you this late.
I hope I'm not disturbing you. 打扰
I hope I'm not keeping you.
I hope I didn't wake you up.
It is urgent I talk to Mr. Barr now.
I need to get in contact with Mr. Barr right away.
I need to talk to Mr. Barr immediately.
I'm calling about tomorrow's meeting.
I'm returning your call.我给您回电话.
I'm calling you back.