@Daniel, how can the SIP proxy determine whether to use rtpproxy or not ?
On Sun, Mar 3, 2013 at 11:58 PM, Daniel-Constantin Mierla <miconda@gmail.com
wrote:
Hello,
stun works pretty well for non-symmetric nat. If there is symmetric nat, then you need a rtp relay (e.g., rtpproxy) or turn server.
Cheers, Daniel
On 2/28/13 5:48 PM, Khoa Pham wrote:
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.org@spam.lublink.netwrote:
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-users@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
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users@lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
-- Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio World Conference, April 16-17, 2013, Berlin
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