Depends who's calling. The default (for any number not in my contact list) is a standard bell ring that's familiar to anyone who ever owned a standard pushbutton phone supplied by the phone company. The default for contacts is an electronic ring tone similar to what you hear from wireless phones. Then I have unique tones for the contacts I actually give a shit about. Dad's is an audio clip from "Toy Story (Buzz Lightyear to Star Command). Madagascar provides the clip for my younger daughter with George Carlin, Ozzy Osbourne, Evanescence and others supplying further tones.
Thief and assassin for hire. Member in good standing of the Rogues Guild.