<p dir="ltr">Hello</p>
<p dir="ltr">Without looking at the config. It looks like you're not doing nat traversal. Are you using a default config? Which one? </p>
<br><div class="gmail_quote"><div dir="ltr">On Mon, Jan 22, 2018, 09:21 Nicolas Breuer <<a href="mailto:Nicolas.Breuer@belcenter.biz">Nicolas.Breuer@belcenter.biz</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">Hello,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Any ideas on this ? <span style="font-family:"Segoe UI Emoji",sans-serif">😊</span><u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal"><b><span lang="FR">De :</span></b><span lang="FR"> sr-users [mailto:<a href="mailto:sr-users-bounces@lists.kamailio.org" target="_blank">sr-users-bounces@lists.kamailio.org</a>]
<b>De la part de</b> Nicolas Breuer<br>
<b>Envoyé :</b> jeudi 18 janvier 2018 23:49<br>
<b>À :</b> Kamailio (SER) - Users Mailing List <<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a>><br>
<b>Objet :</b> [SR-Users] Problem Proxy<u></u><u></u></span></p>
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</div></div></div><div lang="FR-BE" link="#0563C1" vlink="#954F72"><div class="m_-8041879071253418848WordSection1">
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Hello the list,<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><span lang="EN-US">I have a problem on the proxy with the audio between two calls bridged by a UAC.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">When I made a normal call, no problems.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">My UAC is nated. <u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">UAC > Router > KAMAILIO<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Frames arrives with private IP in the SDP.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">U 2018/01/18 21:50:16.798581 <a href="http://217.112.180.235:1024" target="_blank">217.112.180.235:1024</a> -> <a href="http://217.112.180.10:5060" target="_blank">217.112.180.10:5060</a><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">SIP/2.0 200 OK.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Via: SIP/2.0/UDP 217.112.180.10;branch=z9hG4bK2d06.2f2a1856bde881173a3fc413c4136b83.0.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Via: SIP/2.0/UDP 84.14.241.179:5060;rport=5060;branch=z9hG4bK0dBe3143bcf7f60a70b.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Record-Route: <<a>sip:217.112.180.10;lr=on;ftag=gK0d4dfe6f;did=227.c0d2;nat=yes</a>>.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">From: <<a>sip:32XXXXXX87@
</a>>;tag=gK0d4dfe6f.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Call-ID: <a href="mailto:940401290_111374574@84.14.241.179" target="_blank">
940401290_111374574@84.14.241.179</a>.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">CSeq: 29328 INVITE.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Contact: <<a>sip:32XXXXXX61@192.168.2.2:5060;transport=udp</a>>.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Supported: timer,100rel.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Server: IP Office 10.1.0.0.0 build 237.<u></u><u></u></span></p>
<p class="MsoNormal">Min-SE: 1800.<u></u><u></u></p>
<p class="MsoNormal">Require: timer.<u></u><u></u></p>
<p class="MsoNormal">Session-Expires: 1800;refresher=uas.<u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">To: <<a>sip:32XXXXXX61@217.112.180.235</a>>;tag=998e429e819ba686.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Content-Type: application/sdp.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Content-Length: 202.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">v=0.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">o=UserA 3721571424 1025404311 IN IP4 192.168.2.2.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">s=Session SDP.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">c=IN IP4 192.168.2.2.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">t=0 0.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">m=audio 49154 RTP/AVP 9 101.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:9 G722/8000.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:101 telephone-event/8000.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">a=fmtp:101 0-15.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">I don’t understand why but the proxy (in case of an incoming call) succeed to determine the public IP.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><b><span lang="EN-US">Jan 18 21:40:08 proxy1 rtpproxy[1314]: INFO:rxmit_packets:1fb3f1c6c8dfe738221842406be48450: caller's address filled in: <a href="http://217.112.180.235:49154" target="_blank">217.112.180.235:49154</a> (RTP)<u></u><u></u></span></b></p>
<p class="MsoNormal"><span lang="EN-US">Jan 18 21:40:08 proxy1 rtpproxy[1314]: INFO:rxmit_packets:1fb3f1c6c8dfe738221842406be48450: guessing RTCP port for caller to be 49155<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Jan 18 21:40:16 proxy1 rtpproxy[1314]: INFO:rxmit_packets:1fb3f1c6c8dfe738221842406be48450: caller's address latched in: <a href="http://217.112.180.235:49155" target="_blank">217.112.180.235:49155</a> (RTCP)<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Don’t know why because the only information in SDP is 192.168.2.2<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">The Kamailio didn’t send the information of the proxy to the UAC , but to the other end as this is an incoming call.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">So I have audio in this case.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">When I setup a bridge on the UAC to a second number, we have an issue. ( Kamailio 4.4.6 )<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">This is the same frames<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">U 2018/01/18 21:51:26.607270 <a href="http://217.112.180.235:1024" target="_blank">217.112.180.235:1024</a> -> <a href="http://217.112.180.10:5060" target="_blank">217.112.180.10:5060</a><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">SIP/2.0 200 OK.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Via: SIP/2.0/UDP 217.112.180.10;branch=z9hG4bK4181.bb7aab84b6fb0aea5836b4d8874406ec.0.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Via: SIP/2.0/UDP 84.14.241.179:5060;rport=5060;branch=z9hG4bK0bB16ee5a3d300fee16.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Record-Route: <<a>sip:217.112.180.10;lr=on;ftag=gK0b5d7652;did=cc6.5452;nat=yes</a>>.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">From: <<a>sip:32XXXXXX87@
</a>>;tag=gK0b5d7652.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Call-ID: <a href="mailto:940248136_13287504@84.14.241.179" target="_blank">
940248136_13287504@84.14.241.179</a>.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">CSeq: 21946 INVITE.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Contact: <<a>sip:32XXXXXX61@192.168.2.2:5060;transport=udp</a>>.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Supported: timer,100rel.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Server: IP Office 10.1.0.0.0 build 237.<u></u><u></u></span></p>
<p class="MsoNormal">Min-SE: 1800.<u></u><u></u></p>
<p class="MsoNormal">Require: timer.<u></u><u></u></p>
<p class="MsoNormal">Session-Expires: 1800;refresher=uas.<u></u><u></u></p>
<p class="MsoNormal"><span lang="EN-US">To: <<a>sip:32XXXXXX61@217.112.180.235</a>>;tag=559c99f5edcab5d4.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Content-Type: application/sdp.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Content-Length: 202.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">v=0.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">o=UserA 1781830446 4071482272 IN IP4 192.168.2.2.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">s=Session SDP.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">c=IN IP4 192.168.2.2.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">t=0 0.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">m=audio 49156 RTP/AVP 8 101.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:8 PCMA/8000.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">a=rtpmap:101 telephone-event/8000.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">a=fmtp:101 0-16.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">But in this case no audio<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">RTCP detected but no the RTP.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">He took the private ip address “192.168.2.2” and this is the reason of the “no audio”.<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Jan 18 21:51:26 proxy1 rtpproxy[1314]: <a href="mailto:INFO%3Artpp_command_ul_handle%3A940248136_13287504@84.14.241.179" target="_blank">INFO:rtpp_command_ul_handle:940248136_13287504@84.14.241.179</a>: lookup on ports 11264/10446, session timer restarted<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Jan 18 21:51:26 proxy1 rtpproxy[1314]: <a href="mailto:INFO%3Artpp_command_ul_handle%3A940248136_13287504@84.14.241.179" target="_blank">INFO:rtpp_command_ul_handle:940248136_13287504@84.14.241.179</a>: pre-filling callee's address with <a href="http://192.168.2.2:49156" target="_blank">192.168.2.2:49156</a><u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Jan 18 21:51:26 proxy1 rtpproxy[1314]: INFO:rxmit_packets:e1e387824e0753522b7bc55e02090784: callee's address latched in: <a href="http://79.137.49.139:39176" target="_blank">79.137.49.139:39176</a> (RTP)<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Jan 18 21:51:32 proxy1 rtpproxy[1314]: INFO:rxmit_packets:e1e387824e0753522b7bc55e02090784: caller's address filled in: <a href="http://217.112.180.235:49155" target="_blank">217.112.180.235:49155</a> (RTCP)<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">Jan 18 21:51:32 proxy1 rtpproxy[1314]: <a href="mailto:INFO%3Arxmit_packets%3A940248136_13287504@84.14.241.179" target="_blank">INFO:rxmit_packets:940248136_13287504@84.14.241.179</a>: callee's address filled in: <a href="http://217.112.180.235:49157" target="_blank">217.112.180.235:49157</a> (RTCP)<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US">I would like to understand why with the first call, no issues to determine the RTP IP and not in the second case,<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
</div></div>
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