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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. 2004-07-08
Anonymous
I've been a 5ESS Systems Engineer at a large operator and there are a number of mistakes in the article:

1. Local Exchange switches do contain screening software to block spoofing, even from digital PRI links. If they detect a wrong A-number they inject the default CLID of the PBX.

2. Internationa...

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