Yes, system settings - sound - ringtone. Nothing third party needs to be added.
If someone decides to freeze Media Server (part of the rom) they can no longer specify a new ringtone and incoming calls will not ring. Any newly selected ringtone will show as "silent".
Re enabling Media Server will correct the above.
I have to issues with low sound (NAND+DataOnEX). In the begging everything is fine but after a while the sound of notifications and ringer is decreased.
Where can I find Media Server, and how do enable it?