Hello Giovanni, I fixed webrtc call working right now. I checked debug again and I so 408 error. There was missing record_route() for first INVITE. Thank you for help. Slava. From: "Giovanni Maruzzelli" &lt;gmaruzz(a)gmail.com&gt; To: "sr-users" &lt;sr-users(a)lists.sip-router.org&gt; Sent: Saturday, 5 September, 2015 07:50:29 Subject: Re: [SR-Users] webrtc First thing, check that you can have a webRTC call directly with FreeSWITCH, without passing by Kamailio. If that works, and it does not work through Kamailio, then provide kamailio config, freeswitch config, and debug log from both. On Sat, Sep 5, 2015 at 12:51 AM, Slava Bendersky < volga629(a)skillsearch.ca > wrote: Hello Everyone, I am trying setup webrtc call with freeswitch. [root@canlvprx01 kamailio]# rpm -qa | grep kamailio kamailio-4.3.1-4.4.fc21.x86_64 Case: INTERNET eth0 | eth1 LAN | Web Browser ---->webrtc ----> kamailio ----> freeswitch Getting this error Sep 4 00:22:06 canlvprx01 /usr/sbin/kamailio[11820]: WARNING: <core> [forward.h:164]: msg_send(): TCP/TLS connection for WebSocket could not be found Sep 4 00:22:10 canlvprx01 /usr/sbin/kamailio[11817]: WARNING: <core> [forward.h:164]: msg_send(): TCP/TLS connection for WebSocket could not be found Sep 4 00:22:14 canlvprx01 /usr/sbin/kamailio[11818]: WARNING: <core> [forward.h:164]: msg_send(): TCP/TLS connection for WebSocket could not be found Tried check debug don't see any thing special. Any help thank you. Please let me know which logs will good to provide. Slava. _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Sincerely, Giovanni Maruzzelli Cell : +39-347-2665618 _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users