Hi, it's 你的名字 from 你的公司. May I (please) speak to Mr.Smith?
Could you please take a message? Please tell her/him that…
I'd like to leave her/him a message. Please let her/him know that…
When is a good time to call?
When is she/he going to be back?
Could you tell him/her that I called, please?
Could you ask him/her to call me back, please?
Okay, thanks. I'll call back later.
I'm calling to ask about/discuss/clarify…
I just wanted to ask…
I'm calling about/because…
I'm calling to follow up on…
I'm sorry, but I think there has been a misunderstanding…
I'm sorry, but it's not quite right.
Let me see if I got that right.
When you say…do you mean…?
So if I understand you correctly…
Just to clarify, you said…
I'm not sure I understand. Did you mean…?
I'm sorry, I didn't catch that. Could you please repeat yourself?
Would you mind spelling that for me?
Would you mind slowing down?
Would you mind speaking up a little bit?
I'm sorry, could you speak up, please?
Would you mind speaking up a bit?
I'm sorry I can't hear you very well.
I think we have a bad connection.
I will follow up with the requested information soon.
I will keep you updated on our progress.
Thank you for your time. Have a great day!