I accidentally selected "nothing" for a voice call ringtone, and now the phone place a selection from my music files when I get a call. Here's how I did it: Settings, Sound and display, voice call ringtone. Now, select any ringtone, then hit cancel. if you go back into the voice call ringtone, you'll see that nothing there is selected. somehow, it plays a song from my music library when I get a call. Seems to be a different song depending on who calls. Has anyone else run into this? I wonder if there is a way to assign a specific song to a caller this way?