1. From the home screen, tap the Phone icon.
   
2. Tap the Menu icon.
   
3. Tap Settings.
   
4. Tap Call settings.
   
5. Tap Additional settings.
   
6. Tap Caller ID.
   
7. Tap Hide number to prevent your number from showing up on caller ID.
   Note: To block your Caller ID on a per-call basis, dial *67 before the 10-digit phone number.
   
8. Tap Show number to always display your number on caller ID.