To access Caller ID settings, from the Start screen, tap the Phone tile.
Tap the Menu icon.
Tap Change more settings for Phone.
Tap the ‘Show my caller ID to’ field.
Tap the Desired option. Note: To block caller ID on a per call basis: From the dial pad, enter #31# + the 10-digit number, and then tap call. Alternately, *67 may be available in some markets. Enter *67 + the 10-digit number.