Solving the Caller ID Problem - O'Reilly Emerging Telephony

"In the wake of the proposed Truth in Caller ID Act, a lengthy discussion of the issues around reliable Caller ID data recently took place on the excellent Voice Over IP Security Alliance VOIPSEC mailing list. While many points were debated, two things are clear: VoIP-based systems connecting to the PSTN have increased the unreliability of Caller ID data, and law enforcement agencies have legitimate needs to be able to get access to call record information that is becoming increasingly difficult to obtain. "

Solving the Caller ID Problem - O'Reilly Emerging Telephony: