There's an XKCD comic that says something about how although the author may have done something good or bad or something like that, there is one thing he will never regret when he dies -- that his phone always sounded like a phone.
On the one hand, that may seem kind of admirable: phones sounding like phones, after all, is the natural order of things.
On the other hand, it's stupid -- phones sound like phones no matter what phones sound like; the only reason we think phones should "ring" is because phones have always rung. If Alexander Graham Bell, when he was stealing the alien technology he would slightly alter and call his own invention (as revealed in my stunning new book "Alexander Graham Bell Stole From The Aliens: How Every Invention Ever Is Explained by Alien Technology We Got From The Roswell Crash In 1945 Because One Of Those Things Was A Time Machine"), had instead made phones "quack," or play Hothouse Flowers' song "Christchurch Bells," we would think THAT is what a phone is supposed to sound like.
I think, though, your phone should sound like what you want it to sound like, which is why I'm sharing with you the iphone ringtones app available at that link, there.
No more boring ringtones! Forget bells and beeps and buzzers -- this app will help you browse over 500,000 ringtones right from your phone, searching by category, name, or other criteria.
And the app lets you use songs from your own library as a ringtone, or even record and customize your own ringtone with the microphone.
No more spending on ringtones, and you get the ringtone you want, exactly -- so if you've dreamed of having as your ringtone the neighborhood kids playing Supertramp's "Fool's Overture" on toy instruments, that's finally within your reach (better pay royalties to Supertramp, though).
Reviews of the app say it's better than any other -- intuitive and easy to use and with a "Huge" ringtone bank with new ones added all the time.
So forget XKCD and Alexander Graham Bell: let your phone sound like YOU.