Quote from Jerry in The Ex-Girlfriend
Jerry: [on the phone] Hello. Hello. Is Glenn there? I'm sorry. Is this 805-555-3234? Yes, I know I have the wrong number. But I just want to know if I dialed wrong or if... [call ends; Jerry redials] [Kramer enters the apartment. The buzzer goes. Kramer answers it.] Kramer: Come on up. Jerry: [on the phone] Oh, it's you again. See? Now if you had answered me, I wouldn't have had to do this. Now that's two long distance calls I made to you why can't you... [call ends] Why? Why do they just hang up like that?!