http://www.spoofcard.com/
If you've ever made or received a call using a calling card, you've probably noticed one of the side effects of these payment systems: instead of your number showing up on the recipient's Caller ID screen, a number owned by the card's issuer appears. Now a company called SpoofCard has decided to capitalize on this discrepancy by selling calling cards that are specifically designed to spoof Caller ID systems.
For about 17 cents a minute, SpoofCard lets you send any numeric string as your Caller ID code. The service goes even further, providing realtime voice-changing capabilities and call recording. Although SpoofCard's Privacy Policy specifies that the service shouldn't be used for illegal activities and that the company reserves the right to hand over your personal info if they're subpoenaed, we won't be surprised to see this shut down soon. In the meantime, here's your chance to really confuse those wiretappers.
