Hi David, I already read all of these. But the problem seems contradict with what I read
On Thu, Feb 28, 2013 at 9:56 PM, David <kamailio....@spam.lublink.net>wrote: > Hello, > > Look on Wikipedia and read the articles for SIP, RTP, NAT and STUN. > > The answer to your question can be found in the above articles. > > David > > > On 13-02-27 10:26 PM, Khoa Pham wrote: > > Hi, I have Kamailio as SIP server and RTP server. Client is PJSIP. > > I read that STUN is for non-symmetric NAT, and RTP server is for > symmetric NAT. > > Supposed A calls B. > > If A, B both use symmetric NAT and STUN, they cannot hear each other > If A or B use non-symmetric NAT and NOT using STUN, they cannot hear each > other. > > Why is that? > > I read > http://tools.ietf.org/id/draft-takeda-symmetric-nat-traversal-00.txt for > Prediction > Failure, is that related to this problem ? > > -- > Khoa Pham > HCMC University of Science > Faculty of Information Technology > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing > listsr-us...@lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > -- Khoa Pham HCMC University of Science Faculty of Information Technology
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