How can you introduce your name in a phone call?
... 's speaking. / This is ...
What phrases can we use to tell the speaker to slow down?
Can you speak slowly?
What can we say if we didn't hear what the speaker said?
Can you speak louder? / Can you speak again?
How can we end a phone conversation ?
Sorry. I have another call. I will call you back later.
To return a phone call (v)
Call back (v)
Wait for a short time (v)
Hold on (v)
What is your phone number?
....
How can you say to leave a message for someone?
I want to leave the message for ... / This message is for ...
