<div dir="ltr">Hi Brian, <div><br></div><div>OK, I will attach all the data to the JIRA</div><div><br></div><div>Thanks,</div><div>Sasa</div><div><br></div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Thu, May 15, 2014 at 2:58 PM,  <span dir="ltr">&lt;<a href="mailto:freeswitch-dev-request@lists.freeswitch.org" target="_blank">freeswitch-dev-request@lists.freeswitch.org</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<br>Today&#39;s Topics:<br>
<br>
   1. Re: STUN Binding Request failed causing no audio  when join to<br>
      conf (Brian West)<br>
<br><br>---------- Forwarded message ----------<br>From: Brian West &lt;<a href="mailto:brian@freeswitch.org">brian@freeswitch.org</a>&gt;<br>To: <a href="mailto:freeswitch-dev@lists.freeswitch.org">freeswitch-dev@lists.freeswitch.org</a><br>
Cc: <br>Date: Thu, 15 May 2014 07:57:31 -0500<br>Subject: Re: [Freeswitch-dev] STUN Binding Request failed causing no audio when join to conf<br><div style="word-wrap:break-word"><div><div style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
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You also already have JIRA on this <a href="https://jira.freeswitch.org/browse/FS-6502" target="_blank">https://jira.freeswitch.org/browse/FS-6502</a></div><div style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;margin:0px">
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You’ve cooked up a config of your own that involves two different how-tos that have been published.   All your sip traces, logs and data should be on the JIRA, And this continued posting to the list to get answers to an issue that already has a JIRA is wasting everyones time involved.  Please work with us, not against us.</div>
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Brian West</div><div style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;margin:0px">
<a href="mailto:brian@freeswitch.org" target="_blank">brian@freeswitch.org</a></div><br><img height="73" width="240" src="cid:477AC461-E00C-4427-883D-AA04872C09C3@mcalester.net"><div style="color:rgb(0,0,0);font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
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<span style="font-size:12px">T: <a href="tel:%2B1.918.420.9001" value="+19184209001" target="_blank">+1.918.420.9001</a></span>  |  F<span style="border-collapse:separate;border-spacing:0px"><span style="font-size:12px">: <a href="tel:%2B1.918.420.9002" value="+19184209002" target="_blank">+1.918.420.9002</a>  |  </span><span style="font-size:12px">M: +1.918.424.WEST</span><div style="word-wrap:break-word">
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</span></div></span></div></span></div></span></div></span></div></span></div></span><span style="font-size:12px">ISN: 410*543</span></div><div style="word-wrap:break-word"><span style="font-size:12px"><a>Skype:briankwest</a></span></div>
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<br>

</span></div></div></div></div></div></div></div></div></div></div></div></div><br><div><div>On May 14, 2014, at 5:39 PM, Sasa Ivancev &lt;<a href="mailto:sasa.ivancev@gmail.com" target="_blank">sasa.ivancev@gmail.com</a>&gt; wrote:</div>
<br><blockquote type="cite"><div lang="EN-US" link="blue" vlink="purple" style="font-family:Helvetica;font-size:12px;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
<div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)">Hi,<u></u><u></u></span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)">I am using SIPml5 client and Kamailio 4.1.2 server integrated with FS 1.5. Both apps are installed on same virtual machine, Ubuntu 12.04,  behind NAT box (IP 192.168.1.103). Kamailio and Freeswitch servers are integrated  according to this tutorial:  <span> </span><a href="http://kb.asipto.com/freeswitch:kamailio-3.3.x-freeswitch-1.2.x-sbc" style="color:purple;text-decoration:underline" target="_blank">http://kb.asipto.com/freeswitch:kamailio-3.3.x-freeswitch-1.2.x-sbc</a><span> </span> <u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)">In case SIPml5 client has public IP, it can join to conference and get two-way audio.<u></u><u></u></span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)">In case SIPml5 client is behind NAT box, it can join to conference, but there is NO AUDIO !<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)">What I noticed is that in second case STUN requests failed. I am getting  ICMP messages instead of &quot;Binding Response...&quot;<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<b><span style="font-family:Consolas;color:rgb(0,112,192)"># tshark | egrep &quot;STUN|ICMP|DTLS&quot;<u></u><u></u></span></b></div><div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Consolas;color:rgb(0,112,192)">Capturing on eth1<u></u><u></u></span></div><div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">  0.000000 192.168.1.103 -&gt; 46.240.237.61 STUN 210 Binding Request user: zGCPKXKUmgWac67N:TICkBPVhZYHwJ0oz<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">  0.629060 192.168.1.103 -&gt; 46.240.237.61 STUN 210 Binding Request user: ahBT5zBSFNfFB7Xx:i2dyJzygCPRgMlpQ<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">  0.662777 46.240.237.61 -&gt; 192.168.1.103<span> </span></span><span style="font-family:Consolas;color:red">ICMP 238 Destination unreachable (Port unreachable)</span><span style="font-family:Consolas;color:rgb(0,112,192)">                  <u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">  1.000463 192.168.1.103 -&gt; 46.240.237.61 STUN 210 Binding Request user: zGCPKXKUmgWac67N:TICkBPVhZYHwJ0oz<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">  1.649064 192.168.1.103 -&gt; 46.240.237.61 STUN 210 Binding Request user: ahBT5zBSFNfFB7Xx:i2dyJzygCPRgMlpQ<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">  1.684495 46.240.237.61 -&gt; 192.168.1.103<span> </span></span><span style="font-family:Consolas;color:red">ICMP 238 Destination unreachable (Port unreachable)</span><span style="font-family:Consolas;color:rgb(0,112,192)"><u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">  2.<a href="tel:020352%20192" value="+38120352192" target="_blank">020352 192</a>.168.1.103 -&gt; 46.240.237.61 STUN 210 Binding Request user: zGCPKXKUmgWac67N:TICkBPVhZYHwJ0oz<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">  2.649471 192.168.1.103 -&gt; 46.240.237.61 STUN 210 Binding Request user: ahBT5zBSFNfFB7Xx:i2dyJzygCPRgMlpQ<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">  2.674532 46.240.237.61 -&gt; 192.168.1.103 ICMP 238 Destination unreachable (Port unreachable)<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)">In FreeSWITCH logs, next  5 lines are missing when there is no audio:<u></u><u></u></span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">73d19284-d87c-11e3-9259-339370100fc8 2014-05-10 21:51:19.421954 [INFO] switch_rtp.c:2701 Changing audio DTLS state from HANDSHAKE to SETUP<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">73d19284-d87c-11e3-9259-339370100fc8 2014-05-10 21:51:19.421954 [INFO] switch_rtp.c:2609 audio Fingerprint Verified.<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">73d19284-d87c-11e3-9259-339370100fc8 2014-05-10 21:51:19.421954 [INFO] switch_rtp.c:3151 Activating Audio Secure RTP SEND<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">73d19284-d87c-11e3-9259-339370100fc8 2014-05-10 21:51:19.421954 [INFO] switch_rtp.c:3129 Activating Audio Secure RTP RECV<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas;color:rgb(0,112,192)">73d19284-d87c-11e3-9259-339370100fc8 2014-05-10 21:51:19.421954 [INFO] switch_rtp.c:2649 Changing audio DTLS state from SETUP to READY<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)">Also, I see &#39;ice not ready&#39; alert messages for debug_level 10.<u></u><u></u></span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)">When SIPml5 client has public IP, everything works fine: In network traces I see that STUN negotiation is OK , DTLS is OK and audio is working.<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><b><span style="font-family:Consolas;color:rgb(0,112,192)"># tshark | egrep &quot;STUN|ICMP|DTLS&quot;<u></u><u></u></span></b></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-size:10pt;font-family:Consolas"> </span></div><div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-size:10pt;font-family:Consolas"></span><span style="font-family:Consolas">29.637026 192.168.1.103 -&gt; 46.240.237.61 STUN 210 Binding Request user: Zk/oQhC+x1sqfxan:12mOvSqfqyVZTtFl<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">29.674027 46.240.237.61 -&gt; 192.168.1.103 STUN 106<span> </span><span style="background-color:yellow;background-repeat:initial initial">Binding Success Response XOR-MAPPED-ADDRESS: <a href="http://95.180.82.218:41721" target="_blank">95.180.82.218:41721</a></span><u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">29.685923 46.240.237.61 -&gt; 192.168.1.103 STUN 158 Binding Request user: 12mOvSqfqyVZTtFl:Zk/oQhC+x1sqfxan<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">29.697067 192.168.1.103 -&gt; 46.240.237.61 STUN 106<span> </span><span style="background-color:yellow;background-repeat:initial initial">Binding Success Response XOR-MAPPED-ADDRESS: <a href="http://46.240.237.61:44259" target="_blank">46.240.237.61:44259</a></span><u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">29.697461 192.168.1.103 -&gt; 46.240.237.61 DTLSv1.0 243 Client Hello<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">29.730743 192.168.1.103 -&gt; 46.240.237.61 STUN 210 Binding Request user: zGCPKXKUmgWac67N:TICkBPVhZYHwJ0oz<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">30.154973 46.240.237.61 -&gt; 192.168.1.103 DTLSv1.0 877 Server Hello, Certificate, Server Key Exchange, Certificate Request, Server Hello Done<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">30.158308 192.168.1.103 -&gt; 46.240.237.61<span> </span><span style="background-color:yellow;background-repeat:initial initial">DTLSv1.0 856 Certificate, Client Key Exchange, Certificate Verify, Change Cipher Spec, Encrypted Handshake Message</span><u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">30.231732 46.240.237.61 -&gt; 192.168.1.103 DTLSv1.0 133 Change Cipher Spec, Encrypted Handshake Message<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">30.608204 46.240.237.61 -&gt; 192.168.1.103 STUN 158 Binding Request user: 12mOvSqfqyVZTtFl:Zk/oQhC+x1sqfxan<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">30.616939 192.168.1.103 -&gt; 46.240.237.61 STUN 106 Binding Success Response XOR-MAPPED-ADDRESS: <a href="http://46.240.237.61:44259" target="_blank">46.240.237.61:44259</a><u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">30.656908 192.168.1.103 -&gt; 46.240.237.61 STUN 210 Binding Request user: Zk/oQhC+x1sqfxan:12mOvSqfqyVZTtFl<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt 0.5in;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Consolas">30.682214 46.240.237.61 -&gt; 192.168.1.103 STUN 106 Binding Success Response XOR-MAPPED-ADDRESS: <a href="http://95.180.82.218:41721" target="_blank">95.180.82.218:41721</a><u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-size:10pt;font-family:Consolas"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-size:10pt;font-family:Consolas"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)">Any suggestion how to make it working for clients behind NAT  ?<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)">Thanks,<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)">Sasa<u></u><u></u></span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-family:Tahoma,sans-serif;color:rgb(0,112,192)"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-size:10pt;font-family:Consolas"> </span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-size:10pt;font-family:Consolas"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif">
<span style="font-size:10pt;font-family:Consolas"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:&#39;Times New Roman&#39;,serif"><span style="font-size:10pt;font-family:Consolas"> </span></div>
</div>_________________________________________________________________________<br>Professional FreeSWITCH Consulting Services:<br><a href="mailto:consulting@freeswitch.org" style="color:purple;text-decoration:underline" target="_blank">consulting@freeswitch.org</a><br>
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