Block your number from Caller-ID

You will not be able to call from your cell phone and make it appear the calls are coming from your work phone.  This, however, should help to conceal your cell phone number:

To block your number from being displayed temporarily for a specific call:

  1. Enter *67
  2. Enter the number you wish to call (including area code).
  3. Tap Call.  The words “Private,” “Anonymous,” or some other indicator will appear on the recipient’s phone instead of your mobile number.

You will have to do this for each call you make from your personal cell phone number.