May I tell (someone) who's calling?

May I tell (someone) who's calling?

A polite request for the identity of a caller who is asking to speak to someone. A: "May I speak to Josh, please?" B: "Of course. May I tell him who's calling?"
See also: may, tell
Farlex Dictionary of Idioms.
See also:
  • May I speak to (one)?
  • May I speak to ? Go to Could I speak to
  • may as well
  • may/might as well
  • come what may
  • take up (the) cudgels against (someone or something)
  • take up the cudgels
  • May I use your powder room?
  • one man's meat is another man's poison
  • May I be excused?