1. To hide your Caller ID, from the home screen, tap Phone.
   
2. Tap the Menu icon.
   
3. Tap Settings.
   
4. Tap Call settings.
   
5. Tap Additional settings.
   
6. Tap Caller ID.
   
7. 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)
   
8. To show caller ID, tap Show number
   Note: To unblock Caller ID on a per-call basis, from the dial pad, enter *82 before the 10-digit number. (Example: *829995554444)