1. To hide your Caller ID, from the home screen, tap Phone.
   
2. Tap the Menu icon.
   
3. Tap Call settings.
   
4. Tap Caller ID.
   
5. Tap Hide number.
   Note: To block Caller ID on a per-call basis, dial *67 or #31# before the 10-digit phone number. (Examples: *679995554444 or #31#9995554444)
   
6. To show caller ID, tap Show number.