To create your own custom ring tone:
- The file type must be either MP3 or WMA
- The file size must be less than 1MB
- The file length must be less than 40 seconds
- You must change the ID-Tag to “Ringtone”
Once this is done, drop the file into your Music folder on your home PC, and sync your phone with Zune.
The custom ringtone will now appear in your list of ringtones on your phone under the Custom heading.