[EMAIL PROTECTED] wrote:
2- Out-of-band is as safe/unsafe as having the conversation recorded,
including pin, by the hacker, if no encrypted voice path is being used.
as others mentioned, DTMF tones would be very "obvious" in a trace
(maybe someone may want to post an example).
Watch out:
http://www.asteriskbrasil.org/tiki/tiki-browse_image.php?imageId=17
Denis, I'm sure RFC2833 (or INFO for all that matters) would be easy,
what I mentioned, is that, with inband, it for sure still easy to
capture it, after all, the other end-point NEED to be able to regenerate
the DTMF back into the PSTN, so, best case, inband DTMF is security
through obscurity (and being G.729 and the other codecs a well known
standard, building a "DTMF recovery ethereal plugin" should not be
exactly rocket science..)
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