<div dir="ltr">We had some similar problems. Our configuration is:<div>SIP client 1 <-> Kamailio <-> Asterisk <->Kamailio<->SIP client 2</div><div>My solution was to check $td and $si and if they are same as Kamailio, to forward call to Asterisk.</div>
<div>Because I planed to use more then 1 Asterisk, I keep in variable which one to use.</div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Jun 6, 2013 at 5:28 PM, Daniel-Constantin Mierla <span dir="ltr"><<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
Hello,<br>
<br>
the incoming ACK has the top Route with lr parameter, meaning is
loose routing. By that, the proxy removes the top route header,
preserves the R-URI and sends to the URI in the next Route header.<br>
<br>
From what I can see in the Route stack, it seems a spiral back to
the proxy because ip 81.21.38.34 is two times there.<br>
<br>
If you can't sort it out, send the full SIP trace taken on the proxy
from the initial INVITE to the ACK. Then we can see how Record-Route
headers are set and the signaling flow.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div>On 6/6/13 3:30 PM, phillman25 wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Dear list further to the above problem i observed
the following:
<div><br>
</div>
<div>ACK message coming from PABX1:</div>
<div><br>
</div>
<div>
<div>U +0.001877 <a href="http://192.168.10.189:5060" target="_blank">192.168.10.189:5060</a>
-> <a href="http://81.21.38.34:5060" target="_blank">81.21.38.34:5060</a></div>
<div>ACK <a href="mailto:sip%3A94294294@81.21.38.55" target="_blank">sip:94294294@81.21.38.55</a>
SIP/2.0*</div>
<div>Via: SIP/2.0/UDP
192.168.10.189:5060;branch=z9hG4bK76f8f103;rport*</div>
<div>Route:
<a><sip:81.21.38.34;lr=on;ftag=as181922af;did=c83.f641></a>,<<a href="mailto:sip%3A94294294@81.21.38.5" target="_blank">sip:94294294@81.21.38.5</a>;pgw-call=call-2aa6>,<a><sip:81.21.38.34;lr=on;ftag=as181922af></a>*</div>
<div>Max-Forwards: 70*</div>
<div>From: "22498045" <<a href="mailto:sip%3A22498045@192.168.10.189" target="_blank">sip:22498045@192.168.10.189</a>>;tag=as181922af*</div>
<div>To: <<a href="mailto:sip%3A94294294@81.21.38.34" target="_blank">sip:94294294@81.21.38.34</a>>;tag=3d95248-37261551-13c4-50022-1c3096-5cc2673d-1c3096*</div>
<div>Contact: <<a href="http://sip:22498045@192.168.10.189:5060" target="_blank">sip:22498045@192.168.10.189:5060</a>>*</div>
<div>Call-ID:
<a href="mailto:696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060*" target="_blank">696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060*</a></div>
<div>CSeq: 102 ACK*</div>
<div>User-Agent: FPBX-2.8.1(1.8.21.0)*</div>
<div>Content-Length: 0*</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>ACK message sent to PGW from Kamailio1</div>
<div><br>
</div>
<div>
<div>U +0.001254 <a href="http://81.21.38.34:5060" target="_blank">81.21.38.34:5060</a>
-> <a href="http://81.21.38.5:5060" target="_blank">81.21.38.5:5060</a></div>
<div>ACK <a href="mailto:sip%3A94294294@81.21.38.55" target="_blank">sip:94294294@81.21.38.55</a>
SIP/2.0*</div>
<div>Via: SIP/2.0/UDP
81.21.38.34;branch=z9hG4bKc526.9402c2edbc3ef96d9e405408364506a9.0*</div>
<div>Via: SIP/2.0/UDP
192.168.10.189:5060;branch=z9hG4bK76f8f103;rport=5060*</div>
<div>Route: <<a href="mailto:sip%3A94294294@81.21.38.5" target="_blank">sip:94294294@81.21.38.5</a>;pgw-call=call-2aa6>,<a><sip:81.21.38.34;lr=on;ftag=as181922af></a>*</div>
<div>Max-Forwards: 16*</div>
<div>From: "22498045" <<a href="mailto:sip%3A22498045@192.168.10.189" target="_blank">sip:22498045@192.168.10.189</a>>;tag=as181922af*</div>
<div>To: <<a href="mailto:sip%3A94294294@81.21.38.34" target="_blank">sip:94294294@81.21.38.34</a>>;tag=3d95248-37261551-13c4-50022-1c3096-5cc2673d-1c3096*</div>
<div>Contact: <<a href="http://sip:22498045@192.168.10.189:5060" target="_blank">sip:22498045@192.168.10.189:5060</a>>*</div>
<div>Call-ID:
<a href="mailto:696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060*" target="_blank">696cfa577f42395767bc812e7e8a38a5@192.168.10.189:5060*</a></div>
<div>CSeq: 102 ACK*</div>
<div>User-Agent: FPBX-2.8.1(1.8.21.0)*</div>
<div>Content-Length: 0*</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>
<br>
</div>
<div>Shouldn't the ACK message to the PGW have the
header ACK <a href="mailto:sip%3A94294294@81.21.38.5" target="_blank">sip:94294294@81.21.38.5</a>;pgw-call=call-2aa6
and the Route:
<a><sip:81.21.38.34;lr=on;ftag=as181922af></a>* ???</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>Your help is much appreciated!!</div>
<div><br>
</div>
<div>Phillip</div>
</div>
<div><br>
</div>
</div>
</div>
<div class="gmail_extra">
<br>
<br>
<div class="gmail_quote">On Thu, Jun 6, 2013 at 12:26 PM,
phillman25 <span dir="ltr"><<a href="mailto:phillman25@gmail.com" target="_blank">phillman25@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Dear List
<div><br>
</div>
<div>I upgraded from Kamailio v 3.3 to 4.0.1 and am now
facing an issue for the below scenario:</div>
<div><br>
</div>
<div>PABX1 ==> Kamailio1 ==> Cisco PGW ==>
Kamailio1 ==> PABX2<br>
</div>
<div>
<div><br>
</div>
<div><br>
</div>
<div>I understand that this is a hairpin scenario but
was working normally on v 3.3.</div>
<div><br>
</div>
<div>Checking in the syslog i see:</div>
<div>ERROR: <core> [receive.c:230]: ERROR:
receive_msg: no via found in reply<br>
</div>
</div>
<div><br>
</div>
<div>Checking the sip trace i see that when calling from
PABX1 to PABX2. After PABX2 answers and the the 200 OK
is eventually sent to PABX1 , PABX1 answers with ACK
but seems like its not sent back to PABX2 as a result
PABX resends a 200 OK and the cycle continues until
PABX2 sends a BYE message. Please see below the ACK
received from PABX1:</div>
<div><br>
</div>
<div><font style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px" color="#336600">ACK <a href="mailto:sip%3A94294294@81.21.38.55" target="_blank">sip:94294294@81.21.38.55</a> SIP/2.0</font><br style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">
<font style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px" color="red">Via</font><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">:
SIP/2.0/UDP
192.168.10.189:5060;branch=z9hG4bK6bffe37c;rport</span><br style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">
<font style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px" color="red">Route</font><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">:
<a><sip:81.21.38.34;lr=on;ftag=as1cd4f8f1;did=e36.c471></a>,<<a href="mailto:sip%3A94294294@81.21.38.5" target="_blank">sip:94294294@81.21.38.5</a>;pgw-call=call-26eb>,<a><sip:81.21.38.34;lr=on;ftag=as1cd4f8f1></a></span><br style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">
<font style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px" color="red">Max-Forwards</font><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">:
70</span><br style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">
<font style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px" color="red">From</font><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">:
"22498045" <<a href="mailto:sip%3A22498045@192.168.10.189" target="_blank">sip:22498045@192.168.10.189</a>>;tag=as1cd4f8f1</span><br style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">
<font style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px" color="red">To</font><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">:
<<a href="mailto:sip%3A94294294@81.21.38.34" target="_blank">sip:94294294@81.21.38.34</a>>;tag=3d94f08-37261551-13c4-50022-1c1e67-87fe958-1c1e67</span><br style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">
<font style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px" color="red">Contact</font><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">:
<<a href="http://sip:22498045@192.168.10.189:5060" target="_blank">sip:22498045@192.168.10.189:5060</a>></span><br style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">
<font style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px" color="red">Call-ID</font><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">:
<a href="http://03042a717e27a87e759f7f4879e70377@192.168.10.189:5060" target="_blank">03042a717e27a87e759f7f4879e70377@192.168.10.189:5060</a></span><br style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">
<font style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px" color="red">CSeq</font><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">:
102 ACK</span><br style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">
<font style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px" color="red">User-Agent</font><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">:
FPBX-2.8.1(1.8.21.0)</span><br style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">
<font style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px" color="red">Content-Length</font><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">:
0</span><br>
</div>
<div>
<span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px"><br>
</span></div>
<div><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px"><br>
</span></div>
<div><span style="font-family:Arial,Verdana,sans-serif;font-size:11.818181991577148px">Is
there an issue with the above ACK message? Is there
any way to solve this issue quickly perhaps by
disabling loose route?</span></div>
<div><font face="Arial, Verdana, sans-serif"><span style="font-size:12px">I have observed that this
issue occurs only when hairpinned. </span></font></div>
<div><br>
</div>
<div><br>
</div>
<div>Thanking you in advance!</div>
<div><br>
</div>
<div>Phillip</div>
<div><br>
</div>
</div>
</blockquote>
</div>
<br>
</div>
<br>
<fieldset></fieldset>
<br>
<pre>_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
<a href="mailto:sr-users@lists.sip-router.org" target="_blank">sr-users@lists.sip-router.org</a>
<a href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users" target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><span class="HOEnZb"><font color="#888888">
</font></span></pre><span class="HOEnZb"><font color="#888888">
</font></span></blockquote><span class="HOEnZb"><font color="#888888">
<br>
<pre cols="72">--
Daniel-Constantin Mierla - <a href="http://www.asipto.com" target="_blank">http://www.asipto.com</a>
<a href="http://twitter.com/#!/miconda" target="_blank">http://twitter.com/#!/miconda</a> - <a href="http://www.linkedin.com/in/miconda" target="_blank">http://www.linkedin.com/in/miconda</a>
Kamailio Advanced Training, San Francisco, USA - June 24-27, 2013
* <a href="http://asipto.com/u/katu" target="_blank">http://asipto.com/u/katu</a> *</pre>
</font></span></div>
<br>_______________________________________________<br>
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list<br>
<a href="mailto:sr-users@lists.sip-router.org">sr-users@lists.sip-router.org</a><br>
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<br></blockquote></div><br></div>