How fun is this, a phone calling service which spoofs your caller ID. You can call your friend and the number of the White House or Homeland Security will show up on his caller ID. This service is only available in the states, but it can be hilarious. They offer the service to be tried for free so you can see how it works for two minutes before being disconnected. They also have the feature of changing your voice real time to a different female or male voice. The funny part this is all legal, I wouldn’t mind trying this out.
I would get the number to Jack Bauer and have that show up as my caller ID, so if they call back they get Jack Bauer.
Link: SpoofCard