1. From the home screen, drag down from the top of the screen with two fingers to reveal the menu.
   
2. Tap the Settings icon.
   
3. Scroll to 'PHONE', then tap Call.
   
4. Scroll to 'OTHER CALL SETTINGS', then tap Additional settings.
   
5. Tap Caller ID.
   
6. Tap the desired option.
   Note: To block your Caller ID on a per-call basis, dial *67 before the 10-digit phone number.