Can I speak to (one)?

Can I speak to (one)?

A request to talk to a particular person. Can I please speak to your supervisor? A: "Can I speak to Josh?" B: "He's not available right now—can I take a message?"
See also: can, speak
Farlex Dictionary of Idioms.

Can I speak to someone? Go to Could I speak to someone

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See also: can, could, go, speak

Could I speak to someone?

 and Can I speak to someone?; May I speak to someone?
the phrase used to request to talk to a particular person, usually on the telephone. (Also used with talk in place of speak.) Tom (answering the phone): Good morning, Acme Air Products. With whom do you wish to speak? Bill: Can I speak to Mr. Wilson? Tom: One moment. Sally: May I speak to the manager, please? Clerk: Certainly, madam. I'm the manager.
See also: could, speak
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • Can I speak to ? Go to Could I speak to
  • Could I speak to?
  • I'd like to speak to
  • I'd like to speak to (someone)
  • I'd like to speak to (someone), please
  • May I speak to (one)?
  • May I speak to ? Go to Could I speak to
  • Who do you want to speak to?
  • Who do you want to talk to?
  • Who do you want?