1. Go to USER PROFILES icon
2. Select on User profiles "General"
3. Click on "Customize"
4. Now go to "Tone Setup" and find the "SIM1 or SIM2 message tone tab"
5. Choose any of the listed ringtones and go back and activate your profile.
6. There you have it... You can change your volume, ring tone, set vibrate, or anything you can customize in the USER PROFILES. Remember to activate whenever changing something.
Hope I helped!