Did you try this;

http://www.palner.com/blog/303/kamailio-behind-nat/#more-303

Regards, Arun

________________________________ From: Neo Quartz neoquartz@gmail.com To: sr-users@lists.sip-router.org Sent: Wednesday, February 19, 2014 8:22 AM Subject: Re: [SR-Users] NAT traversal problem with Kamailio when trying to communicate between two different LANs

Hi All,

I installed Kamailio server on my ubuntu machine. And installed rtpproxy also in the same machine. I didm't make many changes to default configuration files, kamctlrc and kamailio.cfg. Now I am able to communicate between two SIP clients, if both sip clients are in the same LAN. But I am not able to communicate between one sip client in one LAN and the other SIP client in other LAN. Sip Call handling and ringing etc. is ok  but there is no voice for this case.

I don't have much experience in routing for NAT traversal. I tried to experiment with rtpproxy_manage function in kamailio.cfg file. But I was not successful. Please help me by providing any hints or pointers to proceed further. I am using only Kamailio and Rtpproxy. No other software like Asterisk or FreeSwitch.

************* These are defines I used in kamailio.cfg file:

#!define WITH_MYSQL #!define WITH_AUTH #!define WITH_ALIASDB #!define WITH_USRLOCDB #!define WITH_ANTIFLOOD #!define WITH_NAT #!define WITH_PRESENCE

listen ip address changed

******************* Kamailio is compiled with following modules:

include_modules= db_mysql dialplan presence presence_xml

********

Regards, Sateesh _______________________________________________ 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