19 Jun
2013
19 Jun
'13
11:44 a.m.
Hi Daniel,
I checked using the kamcmd command and I see the webrtc connection active.
The ACK comes from the webrtc client but somehow kamailio is unable to
create a via header and forward the request. The ACK coming from webrtc
client is as follows:
SEND: ACK sip:1223@126.128.68.8:5065;transport=udp SIP/2.0
Via: SIP/2.0/WS
df7jal23ls0d.invalid;branch=z9hG4bKJ0Qsiuh94B2slPLp19qH;rport
From: "Jayesh"<sip:1000001001@ghanti.com>;tag=vsTKsfB1ZR8EkHTPqzyc
To: <sip:1223@ghanti.com>;tag=UQ9veX0vUg7QS
Contact: "Jayesh"<sip:1000001001@df7jal23ls0d.invalid
;rtcweb-breaker=no;click2call=no;transport=ws>;+g.oma.sip-im;+sip.ice;language="en,fr"
Call-ID: 2c76d5ee-e9d0-7f22-8be2-76e80b4ab48b
CSeq: 42684 ACK
Content-Length: 0
Route: <sip:126.128.68.9:5060;lr;sipml5-outbound;transport=udp>
Max-Forwards: 70
Proxy-Authorization: Digest username="1000001001",realm="ghanti.com
",nonce="UcFsQ1HBaxc84k4N1J00fpVDj9G57x5p",uri="sip:1223@126.128.68.8:5065
;transport=udp",response="5b18a2182c335315875224f2244fb48b",algorithm=MD5
Route: <sip:126.128.68.9:8080
;transport=ws;r2=on;lr=on;ftag=vsTKsfB1ZR8EkHTPqzyc;nat=yes>
Route: <sip:126.128.68.9;r2=on;lr=on;ftag=vsTKsfB1ZR8EkHTPqzyc;nat=yes>
User-Agent: IM-client/OMA1.0 sipML5-v1.2013.03.27
Organization: Doubango Telecom
Where 126.128.68.9:5060 is the Kamailio; 126.128.68.8:5065 is a freeswitch
playing music and the request is received on 126.128.68.9:8080 which is
kamailio acting as a websocket server.
Also the connection between Kamailio and Freeswitch is UDP. I am not able
to use the websocket module just because of this small problem caused in
signaling. Any help is really appreciated. Could it be related to the
nathelper module?
Thanks,
--- Jayesh
On Tue, Jun 18, 2013 at 2:17 PM, Daniel-Constantin Mierla <miconda(a)gmail.com
wrote:
Hello,
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.
Cheers,
Daniel
--
Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda -
http://www.linkedin.com/in/miconda
Kamailio Advanced Training, San Francisco, USA - June 24-27, 2013
* http://asipto.com/u/katu *
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