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Hello,<br>
<br>
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<br>
<div class="moz-cite-prefix">On 8/27/12 5:22 PM, Simon Hintermann
wrote:<br>
</div>
<blockquote cite="mid:503B90A0.3000905@ganesh-consulting.ch"
type="cite">
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Hello,<br>
<br>
I will try with a smaller "Subscription Expiry (s):" in my SNOM.<br>
<br>
Just to be clear with the method of test:<br>
<br>
- firewall redirects SNOM to my first ISP<br>
- telephone works perfectly, registered in Kamailio...<br>
- firewall redirects SNOM to my second ISP<br>
- telephone is unregistered in Kamailio, impossible to
"re-register" the identity1, says "network error"<br>
- only way to recover is to change the SNOM's IP address<br>
</blockquote>
<br>
what do you mean by 'firewall redirects Snom to Nth ISP'? Is the IP
of snom static or taken via dhcp from adsl router?<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<blockquote cite="mid:503B90A0.3000905@ganesh-consulting.ch"
type="cite"> <br>
Thanks for your support, greetings<br>
<br>
Simon<br>
<br>
<div class="moz-cite-prefix">Le 27.08.2012 09:04,
Daniel-Constantin Mierla a écrit :<br>
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<blockquote cite="mid:503B1C11.1030409@gmail.com" type="cite">
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Hello,<br>
<br>
what is the expire time of your registrations? 24 hours seems a
lot to re-register.<br>
<br>
From kamailio point of view, the contact is expired based on
un-registration or timeout. You can look with 'kamctl ul show'
to see if the phone is still registered or not.<br>
<br>
Anyhow, in such cases is good to set registration time quite
small, say 5 or 10 minutes, but if there is a problem in the
client side, it is not much to do in server side.<br>
<br>
What is the adsl routed, does it do SIP ALG? I have snom on ADSL
using tcp, does not seem to make big problems.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 8/16/12 2:10 PM, Simon
Hintermann wrote:<br>
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<p class="MsoNormal"><span lang="DE-CH">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal">I am experiencing some disconnections
with my VOIP phones.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Let me explain:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="DE-CH">My server is an
Asterisk + Kamailio in a datacenter with a fixed IP, and
a bridge firewall in front of it, so no NAT here.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal">My client (several offices) have
usually no problem when they have a fixed IP, but
encounter fatal disconnection when they have a dynamic IP.
I had the case with Siemens, SNOM and Aastra phones,
without any difference. <span lang="DE-CH">They are of
course natted behind an ADSL router. I also have clients
doing load-balance between two ADSL lines, which is also
problematic.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal">The only way for me to recover is to
change the private IP of the VOIP phones. <span
lang="DE-CH">Seems more like a TCP problem or a routing
problem, but I am no network guru.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH">I have two ADSL
lines to test it, and when I switch from one line to
another, every phone becomes „Not registered“. Even
falling back tot he first line does not help recovering.
</span>I did not try to wait for longer than 24 hours to
recover.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So my question is, more generally: is
it possible to allow the clients (VOIP phones) to
re-connect with a new IP address without having closed
correctly the first connection (SIP session, I presume)? <span
lang="DE-CH">It seems not by default, but I played with
the timeouts server-side and phone-side, without luck.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal">I saw many posts with PBX having
problems when behind a dynamic IP, but nothing about the
clients having dynamic addresses or load-balancing.
Normally, having a dynamic IP does not mean that your IP
will change « on-the-fly », but each time you shut down
and reboot later your ADSL router, but we came to the
conclusion that every client NOT having a fixed IP was
experiencing fatal disconnects. <span lang="DE-CH">So I
managed to test and validate this behavior with our two
ADSL lines.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal">Hope someone can help me.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Greetings<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Simon<o:p></o:p></p>
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<pre wrap="">_______________________________________________
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<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla - <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://twitter.com/#%21/miconda">http://twitter.com/#!/miconda</a> - <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://asipto.com/u/kat">http://asipto.com/u/kat</a></pre>
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<br>
</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 Advanced Training, Berlin, Nov 5-8, 2012 - <a class="moz-txt-link-freetext" href="http://asipto.com/u/kat">http://asipto.com/u/kat</a></pre>
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