If you want  free cellular ringtones , you must, I repeat, MUST have a phone with computer connectivity either through Bluetooth or USB or even media cards. That way, you need not spend a cent on downloading any sound file over the internet and you could pretty much use any audio file you have on your computer. You will also typically need an audio editor so you could use your files in some phones, which have memory limitation. All your need to do is follow the instructions and everything else will be gravy.