To access Caller ID settings, from the Start screen, tap the Phone tile.
Tap the Menu icon.
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.