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November 17, 2010


Peter Stevens

Hi Mark

Thanks for the Heads Up on this VoIP security hole. Not something that I had thought about previously, but it makes perfect sense.


Thank you for sharing. I wonder where media gateway located, on the premise or telco site? in which you said that it converts to isdn-pri

telephone systems denver

VoIP Security is a big deal. With a few wires and wireshark, you can literally make a tap and be able to use it from the inside of a LAN anywhere.

Mark Collier

Yes, if you have network access and the audio isn't encrypted, which in my experience, it rarely is :)

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Telephony Denial of Service (TDoS)