Hello,

can you get all the log messages for ACK but with debug=3 in the kamailio.cfg?

Cheers,
Daniel

On 23/10/16 22:04, Serhat Guler wrote:

​Hello,

I finally managed to place a call from sipml5 webrtc client​ to Mercuro IMS client. The phone rings, and when I answer it sends 200 OK to the sipml5 where as sipml5 send back an ACK message which never passes the originating PCSCF. The PCSCF says: 

 8(3640) WARNING: <core> [msg_translator.c:2729]: via_builder(): TCP/TLS connection (id: 0) for WebSocket could not be found

 8(3640) ERROR: <core> [msg_translator.c:1947]: build_req_buf_from_sip_req(): could not create Via header

 8(3640) ERROR: <core> [forward.c:548]: forward_request(): building failed

I doubt that the WebSocket connection is closed, cause when I terminate the call from Mercuro client a bye request is being sent to the sipml5.

The ACK package:

ACK sip:alice@192.168.0.10:49794;transport=udp SIP/2.

Via: SIP/2.0/WS df7jal23ls0d.invalid;branch=z9hG4bKvuly7bmxnN4aqM4zZTIS;rport

From: "Bob"<sip:bob@net1.test>;tag=GxzKy1nCMEI1mR0RztrB

To: <sip:alice@net1.test>;tag=18823

Contact: "Bob"<sip:bob@df7jal23ls0d.invalid;rtcweb-breaker=no;click2call=no;transport=ws>;+g.oma.sip-im;language="en,fr"

Call-ID: 5a500969-d0fa-14d1-7d0e-8605f4356ca6

CSeq: 3887 ACK

Content-Length: 

Route: <sip:192.168.0.11:4060;lr;sipml5-outbound;transport=udp>

Max-Forwards: 69

Route: <sip:mo@192.168.0.11:880;transport=ws;r2=on;lr=on;ftag=GxzKy1nCMEI1mR0RztrB;did=e82.0c3>

Route: <sip:mo@192.168.0.11:4060;r2=on;lr=on;ftag=GxzKy1nCMEI1mR0RztrB;did=e82.0c3>

Route: <sip:mo@192.168.0.11:6060;lr=on;ftag=GxzKy1nCMEI1mR0RztrB;did=e82.f062>

Route: <sip:mt@192.168.0.11:6060;lr=on;ftag=GxzKy1nCMEI1mR0RztrB;did=e82.f062>

Route: <sip:mt@192.168.0.11:4060;lr=on;ftag=GxzKy1nCMEI1mR0RztrB;did=e82.1c3>

User-Agent: IM-client/OMA1.0 sipML5-v1.2016.03.04

Organization: Doubango Telecom

Have been thinking for quite a while, but couldn't really find a reason why it wouldn't add the v,a header. A debug 3 level log file is also attached.

Thanks in advance,
Serhat

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-- 
Daniel-Constantin Mierla
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Kamailio Advanced Training, Berlin, Oct 24-26, 2016 - http://www.asipto.com

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