1. To access Caller ID settings, from the Start screen, select the Phone tile.
   
2. Select the Menu icon then select Settings.
   
3. Select Change more settings for Phone.
   
4. To hide your Caller ID, select the ‘Show my caller ID to’ field.
   
5. Select No one.
   Note: To block Caller ID on a per-call basis, dial *67 or #31# before the10-digit phone number. (Examples: *679995554444 or #31#9995554444)
   
6. To show your Caller ID, select the 'Show my caller ID to' field, then select Everyone.
   Note: To unblock Caller ID on a per-call basis, dial *82 before the 10-digit phone number. (Example: *829995554444)