Beau Hunks (1931)
Commandant: You there, what is your number?
Ollie: Didn't I just tell you I was going to be married?
Stan: Who to?
Ollie: Why, a woman of course. Did you ever hear of anybody marrying a man?
Stan: My sister.
[There's a knock at the door. Stan picks up the phone]
Ollie: What are you doing?
Stan: There's somebody knocking on the phone.
Ollie: See? That's levity.
Stan: Hello, Mr. Levity?
Ollie: Answer the door! "Mr. Levity". Mmph!