No. AT&T is just like ROGERS , as long as its branded, you can never use ringones that is more than a certain amount of KB BUT. You can convert the ringtones MP3 / WMA to a certain AT&T type ringtone, google it. As i tried to find for ringtones, rogers branded cellphones accept a type of ringtone. The point of locking your ringtone as a service provider is to force you to buy ringtones from them. Hope this helps.