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VoIP hacks gut Caller I.D.
Kevin Poulsen, SecurityFocus 2004-07-06

Implementation quirks in Voice over IP are making it easy for hackers to spoof Caller I.D., and to unmask blocked numbers.

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VoIP hacks gut Caller I.D. 2004-07-09
Anonymous
The failure occurs at the VOIP to PTSN gateways. The CPN should be filtered in both directions at these gateways with the current VOIP implementation.

The PSTN protocols require a CPN in some call classes. In that case some of the reserved unassigned numbers could be used to clearly indicate the...

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