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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#2F5496">Hi Daniel,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#2F5496"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#2F5496">Thanks for your reply.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#2F5496">Please refer to the attached output file from Homer which I replaced a few words.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#2F5496"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="line-height:12.0pt;background:white"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height:12.0pt;background:white"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Best Regards,</span><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:12.0pt;background:white"><span lang="EN-US" style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:#1F497D">Rex</span><span lang="EN-US" style="font-family:"Calibri",sans-serif;color:#2F5496"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"微軟正黑體",sans-serif;color:#2F5496"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Daniel-Constantin Mierla <miconda@gmail.com>
<br>
<b>Sent:</b> Tuesday, May 19, 2020 1:53 PM<br>
<b>To:</b> Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org>; Rex Lin (</span><span style="font-size:11.0pt">林昱頡</span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">) <Rex.Lin@quantatw.com><br>
<b>Subject:</b> Re: [SR-Users] Issue of calls drop 32s<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p><span lang="EN-US">Hello,<o:p></o:p></span></p>
<p><span lang="EN-US">you have to provide the PCAP (or ngrep output) for such a call taken on kamailio system to see the headers of each sip message and try to understand where the issue is.<o:p></o:p></span></p>
<p><span lang="EN-US">Cheers,<br>
Daniel<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">On 18.05.20 09:38, Rex Lin (</span>林昱頡<span lang="EN-US">) wrote:<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#2F5496">Hi,</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#2F5496"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#2F5496">Do you need further information? Actually, I am not sure if the process is normal, there‘s no problem with the call at least.</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#2F5496">Could it be caused any problem if all clients do fix_nated_register?</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:#2F5496"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:#1F497D"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#1F497D">Best Regards,</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.5pt;font-family:"Arial",sans-serif;color:#1F497D">Rex
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif;color:#2F5496"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Rex Lin (</span><span style="font-size:11.0pt">林昱頡</span><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">)
<br>
<b>Sent:</b> Friday, May 15, 2020 2:37 PM<br>
<b>To:</b> Kamailio (SER) - Users Mailing List <a href="mailto:sr-users@lists.kamailio.org">
<sr-users@lists.kamailio.org></a><br>
<b>Subject:</b> Re: [SR-Users] Issue of calls drop 32s</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">Hi Alex,</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">Thanks for your reply.</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">ICE/STUN haven’t been activated by our clients. All transmission traffic pass through a proxy server. Below is the screenshot of a normal call process.</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"><img border="0" width="1001" height="864" style="width:10.427in;height:9.0in" id="_x0000_i1025" src="cid:image001.jpg@01D62DF3.4649E8C0"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">Best Regards,</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">Rex</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">-----Original Message-----<br>
From: sr-users <<a href="mailto:sr-users-bounces@lists.kamailio.org"><span style="color:#0563C1">sr-users-bounces@lists.kamailio.org</span></a>> On Behalf Of Alex Balashov<br>
Sent: Thursday, May 14, 2020 12:18 AM<br>
To: Kamailio (SER) - Users Mailing List <<a href="mailto:sr-users@lists.kamailio.org"><span style="color:#0563C1">sr-users@lists.kamailio.org</span></a>><br>
Subject: Re: [SR-Users] Issue of calls drop 32s</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">It's a tell-tale sign of an end-to-end ACK from the caller not being forwarded properly to the callee. The server should not be forwarding such an ACK "to itself"; this suggests
that its Request URI may be improperly constructed (it should be equivalent to the remote Contact URI of the callee in the 200 OK message), or that its Route headers are somehow incorrect (they should mirror the Record-Route set in the 200 OK).</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">-- Alex</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">On Wed, May 13, 2020 at 04:07:16PM +0000, Rex Lin (</span>林昱頡<span lang="EN-US" style="font-family:"Calibri",sans-serif">) wrote:</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> Hi,</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> It</span><span lang="EN-US" style="font-family:"Courier New"">’</span><span lang="EN-US" style="font-family:"Calibri",sans-serif">s weird that the calls always drop after 32s
while the callee is using public ip. Also, Server forwards ACK to itself with UDP, instead of forwarding to callee with TLS.</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> Moreover, I cannot see
</span><span lang="EN-US" style="font-family:"Courier New"">“</span><span lang="EN-US" style="font-family:"Calibri",sans-serif">Received</span><span lang="EN-US" style="font-family:"Courier
New",serif">”</span><span lang="EN-US" style="font-family:"Calibri",sans-serif">
in AOR as the callee finish the registration.</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> I recognized it</span><span lang="EN-US" style="font-family:"Courier New"">’</span><span lang="EN-US" style="font-family:"Calibri",sans-serif">s marked by nat_uac_test(</span><span lang="EN-US" style="font-family:"Courier New"">“</span><span lang="EN-US" style="font-family:"Calibri",sans-serif">19</span><span lang="EN-US" style="font-family:"Courier New"">”</span><span lang="EN-US" style="font-family:"Calibri",sans-serif">)
and set with fix_nated_register(), the problem can be resolved.</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> My scenario is as below, for your reference.</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> 1.Kamailio version is 4.4.7, listening public ip.</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> 2.Caller it</span><span lang="EN-US" style="font-family:"Courier New"">’</span><span lang="EN-US" style="font-family:"Calibri",sans-serif">s behind NAT.</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> 3.Clients of Linphone.</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> Do you know the reason why it happened?</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> Best Regards,</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> Rex</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> _______________________________________________</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">> Kamailio (SER) - Users Mailing List</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
<a href="mailto:sr-users@lists.kamailio.org">sr-users@lists.kamailio.org</a></span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">>
<a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a></span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">--</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">Alex Balashov | Principal | Evariste Systems LLC</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif"> </span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">Web:
<a href="http://www.evaristesys.com/">http://www.evaristesys.com/</a>, <a href="http://www.csrpswitch.com/">
http://www.csrpswitch.com/</a></span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">_______________________________________________</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Calibri",sans-serif">Kamailio (SER) - Users Mailing List</span><span lang="EN-US" style="font-family:"Times New Roman",serif"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"><a href="mailto:sr-users@lists.kamailio.org"><span style="font-family:"Calibri",sans-serif">sr-users@lists.kamailio.org</span></a><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"><a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users"><span style="font-family:"Calibri",sans-serif">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</span></a><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Times New Roman",serif"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><br>
<br>
<o:p></o:p></span></p>
<pre><span lang="EN-US">_______________________________________________<o:p></o:p></span></pre>
<pre><span lang="EN-US">Kamailio (SER) - Users Mailing List<o:p></o:p></span></pre>
<pre><span lang="EN-US"><a href="mailto:sr-users@lists.kamailio.org">sr-users@lists.kamailio.org</a><o:p></o:p></span></pre>
<pre><span lang="EN-US"><a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></span></pre>
</blockquote>
<pre><span lang="EN-US">-- <o:p></o:p></span></pre>
<pre><span lang="EN-US">Daniel-Constantin Mierla -- <a href="http://www.asipto.com">www.asipto.com</a><o:p></o:p></span></pre>
<pre><span lang="EN-US"><a href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a><o:p></o:p></span></pre>
<pre><span lang="EN-US">Funding: <a href="https://www.paypal.me/dcmierla">https://www.paypal.me/dcmierla</a><o:p></o:p></span></pre>
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