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Hello,<br>
<br>
you have to give all the BYE -- the best is to send from the first
INVITE to the last BYE, because it matters how the record-route are
built for INVITE.<br>
<br>
I suspect that the BYE comes with r-uri having kamailio address, if
the old ser does fix natted contact (which should not do in this
case).<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 11/20/13 3:03 PM, Igor Potjevlesch
wrote:<br>
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<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-GB">I work on
interconnecting an old SER version with Kamailio.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">When a BYE is sent by
the old SER, the “if (loose_route)” instruction returns
false and then a “404 Not here” is sent. So the BYE is not
relay to the UA. <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">If the BYE is sent by
Kamailio, no problem.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Here are the BYE headers
received by Kamailio:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Record-Route: <a
moz-do-not-send="true"
href="sip:OLD_SER_IP_ADDRESS;ftag=e97b7b77c5a3a9cc;lr=on">sip:OLD_SER_IP_ADDRESS;ftag=e97b7b77c5a3a9cc;lr=on</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Via: SIP/2.0/UDP
OLD_SER_IP_ADDRESS;branch=z9hG4bKc9e5.3cbad207.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Via: SIP/2.0/UDP
UA_IP_ADDRESS_CONNECTED_TO_OLD_SER:5060;rport=5060;branch=z9hG4bK1fbe0a49fe344e6af1efd45b74305a9a<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Route: <a
moz-do-not-send="true"
href="sip:KAMAILIO_IP_ADDRESS;lr=on">sip:KAMAILIO_IP_ADDRESS;lr=on</a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I looked at the RR
module documentation and it’s clearly said that “<span
style="color:black">The loose_route function analyzes the
Route: headers in the requests. […]If a Route: header is
found, the function returns 1 and behaves as described in
section 16.12 of RFC 3261.”.</span> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Someone has an idea?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Igor.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
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<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
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