1. From the home screen, tap Phone.
   
2. Press the Menu key.
   
3. Tap Settings.
   
4. Tap Call.
   
5. Tap More 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.
   Note: When in 'Easy' mode, you can't see caller ID information.