Caller ID services that allow callers to display a fake number are on the rise. The BBC reports that internet phone services are making it much easier to spoof the phone number, which lends credibility to conmen (and cops).

...some US net-based firms are now offering a spoofing service that lets people choose the number they are calling from.

At least seven firms have set up shop on the net offering these spoofing services. Four are aimed at consumers and another three restrict themselves to helping law enforcement agencies and private investigators.

Of course this also gives predatory junk marketers a way around the 'No Call List'. How long before nuisance calls are as common as email spam?