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Hello,<br>
<br>
I am a bit surprised by this behaviour in freeswitch. Do you have a
link on the discussion you had on freeswitch forums? Maybe I can
understand better from there what is the problem.<br>
<br>
In this case, it should be different also the branch parameter in
top Via of the request received by freeswitch. Practically, this is
SIP serial forking, one of the basic flows in SIP.<br>
<br>
From kamailio point of view as well as SIP specs, CSeq must not be
increased in this case.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 2/28/13 6:45 PM, Camila Troncoso
wrote:<br>
</div>
<blockquote
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<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US">Daniel,
</span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US">Any
further Help you can give me?</span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US">Regards,
</span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US">Camila</span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US"> </span></p>
<div>
<div style="border:none;border-top:solid #b5c4df
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US"> Camila Troncoso [mailto:<a
moz-do-not-send="true"
href="mailto:ctroncoso@redvoiss.net">ctroncoso@redvoiss.net</a>]
<br>
<b>Sent:</b> jueves, 21 de febrero de 2013 9:52<br>
<b>To:</b> '<a moz-do-not-send="true"
href="mailto:miconda@gmail.com">miconda@gmail.com</a>';
'SIP Router - Kamailio (OpenSER) and SIP Express Router
(SER) - Users Mailing List'<br>
<b>Subject:</b> RE: [SR-Users] Kamailio not increasing
cseq</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US">Hi
Daniel, </span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US">In
deed the Ruri is the only difference with the second invite.</span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US">For
the first Invite, I received an “503 Service unavailable”
from the gateway , it goues trough the SBC and it is pass to
the LCR so it reroutes the call to the second gateway in the
cloud.</span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US">I
asked in FreeSWITCH forum for this issue and they said that
the problem is Cseq not increasing, Freeswitch doesn’t take
Ruri as compare.</span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US">Regards,</span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US">Camila</span></p>
<p class="MsoNormal"><span style="color:#1f497d" lang="EN-US"> </span></p>
<div>
<div style="border:none;border-top:solid #b5c4df
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"
lang="EN-US"> <a moz-do-not-send="true"
href="mailto:sr-users-bounces@lists.sip-router.org">sr-users-bounces@lists.sip-router.org</a>
[<a moz-do-not-send="true"
href="mailto:sr-users-bounces@lists.sip-router.org">mailto:sr-users-bounces@lists.sip-router.org</a>]
<b>On Behalf Of </b>Daniel-Constantin Mierla<br>
<b>Sent:</b> jueves, 21 de febrero de 2013 5:08<br>
<b>To:</b> SIP Router - Kamailio (OpenSER) and SIP
Express Router (SER) - Users Mailing List<br>
<b>Subject:</b> Re: [SR-Users] Kamailio not increasing
cseq</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Hello,</p>
<div>
<p class="MsoNormal">On 2/20/13 7:44 PM, Camila Troncoso
wrote:</p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">Hi all,</p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">I’m working for a
while with Kamailio+Freeswitch as SBC.</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">I have this structure:</span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Arial","sans-serif""
lang="EN-US"> </span></b></p>
<p class="MsoNormal"><span lang="EN-US">When I make a call
from one client connected to LCR, it is route to my SBC
and afterwards to his destiny in the cloud passing though
a gateway. When the destiny is unreachable, the LCR
reroutes the call to another gateway. Sometimes the LCR
send this retry again to the SBC , because the second
gateway is also in the cloud, but when this happens,
FreeSWITCH answer with :</span></p>
<p class="MsoNormal"><span lang="EN-US">“482 Request merged”
because it detects that is the same call.</span></p>
<p class="MsoNormal"><span lang="EN-US">This is because the
second INVITE has the same Call-ID and same Cseq. Kamailio
<b>is not</b> increasing CSeq.</span></p>
<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span lang="EN-US">Is there a way to
resolve this?</span></p>
</blockquote>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif"">it is a second branch, the
top via header of the second invite should have a different
branch parameter than the previous one. Freeswitch should
detect that and handle it as a separate branch of the call,
too. Try changing the r-uri a bit and see if works (e.g.,
set a prefix that you remove it if set), as an workaround.<br>
<br>
Also, is the CANCEL sent to Freeswitch for first branch? Or
is Freeswitch sending a negative reply?<br>
<br>
Cheers,<br>
Daniel</span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""> </span></p>
<pre>-- </pre>
<pre>Daniel-Constantin Mierla - <a moz-do-not-send="true" href="http://www.asipto.com">http://www.asipto.com</a></pre>
<pre><a moz-do-not-send="true" href="http://twitter.com/#%21/miconda">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a></pre>
<pre>Kamailio World Conference, April 16-17, 2013, Berlin</pre>
<pre> - <a moz-do-not-send="true" href="http://conference.kamailio.com">http://conference.kamailio.com</a> -</pre>
</div>
</blockquote>
<br>
<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>
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Kamailio World Conference, April 16-17, 2013, Berlin
- <a class="moz-txt-link-freetext" href="http://conference.kamailio.com">http://conference.kamailio.com</a> -</pre>
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