SpoofApp is a revolutionary way to change the Caller ID number people see when you make calls from your iPhone. You get to decide what number you want displayed when you make a call.

In order to use SpoofApp you must signup with a Caller ID Spoofing Provider. This only takes a couple minutes. Once you sign up, you will receive a PIN number that you simple enter into the SpoofApp program which will unlock the ability to make calls.

http://www.spoofapp.com/