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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<br>
<br>
<div class="moz-cite-prefix">On 19/03/15 13:50, Yogendra Gupta
wrote:<br>
</div>
<blockquote cite="mid:001201d06243$3c321370$b4963a50$@com"
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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">When I am
calling with other SIP
user then I did not see any INVITE . that have issue with
DNS.<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">If we call with
different DNS
that is working fine then we see INVITE option like<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">U 2015/03/19
12:39:01.744616
117.215.244.16:63380 -> 23.253.110.48:5060<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">SIP/2.0 180
Ringing.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">CSeq: 2 INVITE.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Call-ID:
d83c4bc1e75e54df5ebd06b74f9089ef@0:0:0:0:0:0:0:0.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">From: "tester1"
<a class="moz-txt-link-rfc2396E" href="sip:tester1@23.253.110.48"><sip:tester1@23.253.110.48></a>;tag=ef809ce0.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">To:
<a class="moz-txt-link-rfc2396E" href="sip:tester2@23.253.110.48"><sip:tester2@23.253.110.48></a>;tag=23a5eaea.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Via:
SIP/2.0/UDP
23.253.110.48;branch=z9hG4bKa1a3.21d8ef51bac2678fc26eca5975ae7b00.0,SIP/2.0/UDP
192.168.0.217:5060;rport=62554;received=115.252.208.170;branch=z9hG4bK-343938-6f1017bcd9e693a4959717c9eabdc26e.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Record-Route:
<a class="moz-txt-link-rfc2396E" href="sip:23.253.110.48;lr=on;nat=yes"><sip:23.253.110.48;lr=on;nat=yes></a>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Contact:
"tester2"
<a class="moz-txt-link-rfc2396E" href="sip:tester2@192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48"><sip:tester2@192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48></a>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">User-Agent:
Jitsi2.6.5390Windows
7.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Content-Length:
0.<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>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">U 2015/03/19
12:39:01.744870
23.253.110.48:5060 -> 115.252.208.170:62554<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">SIP/2.0 180
Ringing.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">CSeq: 2 INVITE.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Call-ID:
d83c4bc1e75e54df5ebd06b74f9089ef@0:0:0:0:0:0:0:0.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">From: "tester1"
<a class="moz-txt-link-rfc2396E" href="sip:tester1@23.253.110.48"><sip:tester1@23.253.110.48></a>;tag=ef809ce0.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">To:
<a class="moz-txt-link-rfc2396E" href="sip:tester2@23.253.110.48"><sip:tester2@23.253.110.48></a>;tag=23a5eaea.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Via:
SIP/2.0/UDP
192.168.0.217:5060;rport=62554;received=115.252.208.170;branch=z9hG4bK-343938-6f1017bcd9e693a4959717c9eabdc26e.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Record-Route:
<a class="moz-txt-link-rfc2396E" href="sip:23.253.110.48;lr=on;nat=yes"><sip:23.253.110.48;lr=on;nat=yes></a>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Contact:
"tester2"
<a class="moz-txt-link-rfc2396E" href="sip:tester2@192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48;alias=117.215.244.16~63380~1"><sip:tester2@192.168.0.100:5060;transport=udp;registering_acc=23_253_110_48;alias=117.215.244.16~63380~1></a>.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">User-Agent:
Jitsi2.6.5390Windows
7.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Content-Length:
0.<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 tell me
what can be
issue of </span>firewall dropping?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When I checked at server firewall:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">sudo ufw status<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Status:
inactive<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">Let me know
what can be other
issue for it..<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>
<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 class="moz-txt-link-freetext" href="mailto:miconda@gmail.com">mailto:miconda@gmail.com</a>] <br>
<b>Sent:</b> Thursday, March 19, 2015 5:50 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>
OPTIONS is not the request for initiating the calls, that is
INVITE. You would
need to know SIP a bit in order to be able to understand and
configure
Kamailio.<br>
<br>
If you don't see any INVITE on kamailo server via ngrep when
you call, then the
issue is on client side or there is a firewall dropping it.<br>
<br>
Cheers,<br>
Daniel<o:p></o:p></p>
<div>
<p class="MsoNormal">On 19/03/15 11:39, Yogendra Gupta wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal">Thanks for nice support.<o:p></o:p></p>
<p class="MsoNormal">When we call to test2 user and run this
command at server<o:p></o:p></p>
<p class="MsoNormal">ngrep -d any -qt -W byline "sip" port
5060<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">then we found following response at
server:<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 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><o:p></o:p></pre>
<pre>Kamailio World Conference, May 27-29, 2015<o:p></o:p></pre>
<pre>Berlin, Germany - <a moz-do-not-send="true" href="http://www.kamailioworld.com">http://www.kamailioworld.com</a><o:p></o:p></pre>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<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, May 27-29, 2015
Berlin, Germany - <a class="moz-txt-link-freetext" href="http://www.kamailioworld.com">http://www.kamailioworld.com</a></pre>
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