A little "trend" started by Verizon wireless in which songs are substituted for that same old ringing sound.
Unfortunately, each sound clip is tinny and static-ridden, and lasts about 30 seconds before repeating.
They may also cause your friends to hate you. Realize that this is only because you've had "Baby Got Back" on ringback for sixth months. This is why they no longer call you.
Along with the tones comes a tricky system online where you set them up and decide whether you want a Jukebox (a playlist of many different songs) or just one song over and over again. Each tone is $0.99 and lasts a year.

the thing that you don’t have when you’re phones percentage is over 20

when the number you call plays music instead of a dial tone for you to enjoy while you are waiting for the party to pick up.