On 6/14/13 4:52 PM, Jayesh Nambiar wrote:
Hello All,
I have a setup which is SIPML5 -> Kamailio(Websocket) -> Freeswitch. All I am trying to do is initiate a call from SIPML5 and Play a Music file from freeswitch. This works, but the call hangs up after 30 seconds due to ACK timeout from from the SIPML5.

What I can see is the SIPML5 from Chrome does send an ACK on websocket, but I see the following error in kamailio syslog:

via_builder(): TCP/TLS connection (id: 0) for WebSocket could not be found
ERROR: <core> [msg_translator.c:1725]: build_req_buf_from_sip_req(): could not create Via header
ERROR: <core> [forward.c:607]: forward_request(): ERROR: forward_request: building failed
ERROR: sl [sl_funcs.c:371]: sl_reply_error(): ERROR: sl_reply_error used: I'm terribly sorry, server error occurred (1/SL)

Can someone help me understand what I am missing here and why kamailio is not able to create a VIA header to forward this request towards freeswitch. I have built a simple config file by following https://gist.github.com/jesusprubio/4066845 as reference.

Any help in understanding this is really appreciated.
looks like the web rtc connection was down (closed by one side or interrupted by the network). You can check with kamcmd the list of active connections.


Daniel-Constantin Mierla - http://www.asipto.com
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Kamailio Advanced Training, San Francisco, USA - June 24-27, 2013
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