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[liberationtech] AES-encyrpted telephony in Iran?

Nathan of Guardian nathan at
Wed Jun 13 16:06:26 PDT 2012

On 06/13/2012 06:59 PM, Adam Fisk wrote:
> I would just point out Nathan that both Skype and PrivateGSM should be
> doing all the NAT/firewall traversal necessary to create direct P2P
> connections in about 90% of cases.
I was thinking more in a mobile/3G environment, and in that case, we've
found that NAT traversal is difficult, if not impossible.

This is why with our work on secure telephony (OSTN aka we are doing RTP media proxying 100% of the time,
which has its downsides as well obviously.


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