1. To hide your Caller ID, from the home screen, select the Dialer icon.
   
2. Select the Menu icon.
   
3. Select Settings.
   
4. Scroll down and select Additional settings.
   
5. Select Caller ID.
   
6. Select 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)
   
7. To show caller ID, select 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)