1. From the home screen, tap the Phone icon.
   
2. Tap the Menu icon.
   
3. Tap Settings.
   
4. Scroll to, then tap Additional settings.
   
5. Tap Caller ID.
   
6. To turn off Caller ID tap Hide number.
   Note: To block Caller ID on a per-call basis, dial *67 before the 10-digit phone number.
   
7. To turn on Caller ID, tap Caller ID.
   
8. Tap Show number.