1. You can raise or lower the volume using the volume keys on the left side of the device.
   
2. To set the device to Silent, press the volume down key until "0" is displayed.
   
3. To adjust other sound profiles, from the home screen, select Menu > Settings.
   
4. Select User Profiles.
   
5. Use the Up and Down Navigation keys to choose between General, Silent, Meeting, Outdoor, and My Style.
   
6. To change the ringtone, select Options > Customize. 
   
7. Scroll to the ringtone name below Incoming Call and select OK.
   
8. Press the Up and Down Navigation keys to select a ringtone.
   Note: The selected ringtone will preview automatically.
   
9. To save your choice, choose Select > Options > Save.