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<div class=Section1>
<p class=MsoNormal><span style='color:#1F497D'>Hello,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Thanks for nice support…<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>When kamalio is not working at
some DNS with audio call then how we can know what is issue at client side?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Can you give us any online
communication like Skype or hangout ID? <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>So we can check it is server or
client side issue?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Thanks<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> Daniel-Constantin Mierla
[mailto:miconda@gmail.com] <br>
<b>Sent:</b> Friday, March 20, 2015 5:24 PM<br>
<b>To:</b> Yogendra Gupta; 'Kamailio (SER) - Users Mailing List'<br>
<b>Subject:</b> Re: [SR-Users] Kamalio call issue<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Hello,<br>
<br>
again, if the SIP messages don't get to kamailio box, then the problem is on
client side, not on server side.<br>
<br>
If the request gets to kamailio and cannot do dns requests or they don't
resolve, you will see a sip reply from kamailio.<br>
<br>
There is not an issue that can be revealed by the config of kamailio. On the
client side, try to use tools like host, dig and see what happens with dns
requests. Also, use there ngrep to see if there are sip packets sent out of
that box.<br>
<br>
Cheers,<br>
Daniel<o:p></o:p></p>
<div>
<p class=MsoNormal>On 20/03/15 11:20, Yogendra Gupta wrote:<o:p></o:p></p>
</div>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal><span style='color:#1F497D'>Hello,</span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>When we can change our DNS IP
then it works with following :</span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal>U 2015/03/20 10:06:06.504009 23.253.110.48:5060 ->
202.157.76.21:64051<o:p></o:p></p>
<p class=MsoNormal>ACK <a
href="sip:tester2@192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48SIP/2.0">sip:tester2@192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48SIP/2.0</a>.<o:p></o:p></p>
<p class=MsoNormal>Call-ID: 143610160aa023568302b9c999b79f45@0:0:0:0:0:0:0:0.<o:p></o:p></p>
<p class=MsoNormal>CSeq: 2 ACK.<o:p></o:p></p>
<p class=MsoNormal>Via: SIP/2.0/UDP
23.253.110.48;branch=z9hG4bK7.601b877c92120368c17b3c0da0802af6.0.<o:p></o:p></p>
<p class=MsoNormal>Via: SIP/2.0/UDP 192.168.0.217:5060;rport=63789;received=202.157.76.21;branch=z9hG4bK-353035-5aa153400d9ce60dfc573738a4b55232.<o:p></o:p></p>
<p class=MsoNormal>From: "tester1" <a href="sip:tester1@23.253.110.48"><sip:tester1@23.253.110.48></a>;tag=3fdb1d0f.<o:p></o:p></p>
<p class=MsoNormal>To: "tester2" <a href="sip:tester2@23.253.110.48"><sip:tester2@23.253.110.48></a>;tag=31532119.<o:p></o:p></p>
<p class=MsoNormal>Max-Forwards: 69.<o:p></o:p></p>
<p class=MsoNormal>Contact: "tester1" <a
href="sip:tester1@192.168.0.217:5060;transport=udp;registering_acc=23_253_110_48;alias=202.157.76.21~63789~1"><sip:tester1@192.168.0.217:5060;transport=udp;registering_acc=23_253_110_48;alias=202.157.76.21~63789~1></a>.<o:p></o:p></p>
<p class=MsoNormal>User-Agent: Jitsi2.6.5390Windows 7.<o:p></o:p></p>
<p class=MsoNormal>Content-Length: 0.<o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>But when we used another DNS IP
(internet) and call then it showing only initialize..</span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>If it has firewall issue then it
will not work at all DNS IPs. </span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>I have attached before my config
file for kamalio. </span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Can you tell me what can be
issue that it works at some DNS IP and not at all?</span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>Thanks </span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='color:#1F497D'> </span><o:p></o:p></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'> Daniel-Constantin Mierla [<a
href="mailto:miconda@gmail.com">mailto:miconda@gmail.com</a>] <br>
<b>Sent:</b> Friday, March 20, 2015 2:14 AM<br>
<b>To:</b> Yogendra Gupta; 'Kamailio (SER) - Users Mailing List'<br>
<b>Subject:</b> Re: [SR-Users] Kamalio call issue</span><o:p></o:p></p>
</div>
</div>
<p class=MsoNormal> <o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>These are replies to INVITE
requests, but if you see them, the INVITE passed through the server as well.<br>
<br>
If you are not aware of a firewall, then perhaps you don't have one unless is a
default installation with it enabled or one on the network.<br>
<br>
I suggest you do sip tracing on the client machine to see if the invite
requests leave to the proper IP.<br>
<br>
Ultimately can be also a problem caused by a NAT router with ALG, if the client
is behind such device.<br>
<br>
Cheers,<br>
Daniel<o:p></o:p></p>
</blockquote>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><br>
<br>
<o:p></o:p></span></p>
<pre>-- <o:p></o:p></pre><pre>Daniel-Constantin Mierla<o:p></o:p></pre><pre><a
href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a
href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a><o:p></o:p></pre><pre>Kamailio World Conference, May 27-29, 2015<o:p></o:p></pre><pre>Berlin, Germany - <a
href="http://www.kamailioworld.com">http://www.kamailioworld.com</a><o:p></o:p></pre></div>
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