1. From the home screen, press the Up and Down nav keys to adjust the device volume.
   
2. Reduce the volume to 0 to activate Silent or Vibrate mode.
   Note: Either Silent mode or Vibrate mode will become active, depending on your 'Silent' sound profile settings.
   
3. Alternatively, press and hold the '#' key to quickly switch between Silent mode and other sound profiles.
   
4. When silent mode is active, the Silent mode icon is displayed in the notifications bar.
   
5. To edit additional ring and vibrate settings, press the Right soft key.
   
6. Scroll to the 'Settings' icon, then press the Center nav key.
   
7. Scroll to 'Sound profile', then press the Center nav key.
   Note: Alternatively, press '1' on the keypad.
   
8. To activate a sound profile, scroll to the desired profile, then press the Left soft key.
   
9. To edit sound profile settings, scroll to the desired profile, then press the Center nav key.