Hello, it is clear you have an ALG in the middle that breaks the signalling. Can you try using TLS? You may try first using a different port than 5060 and see if the ALG is still capturing the traffic.
Cheers, Daniel On Tue, Oct 22, 2013 at 6:42 AM, P. S. <pra...@graffiti.net> wrote: > Hello there, > > I am trying to setup a Kamailio (3.3) + Linphone + Jitsi based private > calling system (users can call each other but not call out of the network). > > Agents can be behind NAT (think Verizon cellphone or home-users behind > their router). I started with the default setup and have tried different > settings for NAT/rtpproxy. Currently, all my users register onto the > Kamailio server. Users who are not behind a NAT (Jitsi on the internet) > i.e. with Public IPs are able to successfully make audio/video calls. > > I have RTP proxy setup / running as well, and calls to rtpproxy_manage() > as required. The process is running and Kamailio is configured to know that > the RTPproxy is listening. > > I had to switch to using TCP on some of the my UAs because of provider > blocking UDP traffic. So they are able to register, yet calls are not > completed. The call looks like it connects but no media (audio or video > goes through). > > I have read a lot of the forums on NAT - and am trying to solve for a > couple of big issues: > 1. Figuring out when a UA is behind a NAT, and handling the RTPProxying > appropriately. > 2. while ngrep-ing UDP packets occassionally I see "Warning: 399 sipalg > "Unauthorized" or Bad request. based on what I saw on the internet, it > has to do with the service provider (Verizon) messing with the packet. Is > there a way arount this? > > Any help is greatly appreciated! > > Thanks > Pranv > > _______________________________________________ > 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 > > -- Daniel-Constantin Mierla - http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio Advanced Trainings - Berlin, Oct 21-24; Miami, Nov 11-13, 2013 - more details about Kamailio trainings at http://www.asipto.com -
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