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<p>Hello,</p>
<p>you have to remove the 'r' flag, it instructs rtpproxy to trust
the ip address from sdp:</p>
<p> -
<a class="moz-txt-link-freetext" href="https://www.kamailio.org/docs/modules/stable/modules/rtpproxy.html#rtpproxy.f.rtpproxy_ofrer">https://www.kamailio.org/docs/modules/stable/modules/rtpproxy.html#rtpproxy.f.rtpproxy_ofrer</a></p>
<p>Cheers,<br>
Daniel<br>
</p>
<br>
<div class="moz-cite-prefix">On 24.01.18 09:27, Nicolas Breuer
wrote:<br>
</div>
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"
lang="EN-US">Anyone knows how the rtpproxy get the public IP
Address in case a private IP is in SDP
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"
lang="EN-US">The flags of the proxy are “corbf”<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"
lang="EN-US">If I know how the proxy get this information, I
can compare the two SIP frames when bridging the call.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US"
lang="EN-US"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif"
lang="FR">De :</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif"
lang="FR"> sr-users
[<a class="moz-txt-link-freetext" href="mailto:sr-users-bounces@lists.kamailio.org">mailto:sr-users-bounces@lists.kamailio.org</a>]
<b>De la part de</b> Dave & Hazel<br>
<b>Envoyé :</b> lundi 22 janvier 2018 13:35<br>
<b>À :</b> 'Kamailio (SER) - Users Mailing List'
<a class="moz-txt-link-rfc2396E" href="mailto:sr-users@lists.kamailio.org"><sr-users@lists.kamailio.org></a><br>
<b>Objet :</b> Re: [SR-Users] Problem Proxy<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-IE">Exactly,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-IE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-IE">It appears that the destination of the 1<sup>st</sup>
call (217.112.180.235) is NAT aware but the 2<sup>nd</sup>
(79.137.49.139) isn’t. The latter is probably using the
local IP in the SDP rather than the public IP detectable by
examining the IP of the incoming RTP.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-IE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-IE">What’s the difference between these 2 UAs?<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-IE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-IE"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif"
lang="EN-US">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif"
lang="EN-US"> sr-users [<a
href="mailto:sr-users-bounces@lists.kamailio.org"
moz-do-not-send="true">mailto:sr-users-bounces@lists.kamailio.org</a>]
<b>On Behalf Of </b>David Villasmil<br>
<b>Sent:</b> Monday, January 22, 2018 11:42 AM<br>
<b>To:</b> Kamailio (SER) - Users Mailing List <<a
href="mailto:sr-users@lists.kamailio.org"
moz-do-not-send="true">sr-users@lists.kamailio.org</a>><br>
<b>Subject:</b> Re: [SR-Users] Problem Proxy<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-IE"><o:p> </o:p></span></p>
<p><span lang="EN-IE">Hello<o:p></o:p></span></p>
<p><span lang="EN-IE">Without looking at the config. It looks
like you're not doing nat traversal. Are you using a default
config? Which one?
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-IE"><o:p> </o:p></span></p>
<div>
<div>
<p class="MsoNormal"><span lang="EN-IE">On Mon, Jan 22,
2018, 09:21 Nicolas Breuer <<a
href="mailto:Nicolas.Breuer@belcenter.biz"
moz-do-not-send="true">Nicolas.Breuer@belcenter.biz</a>>
wrote:<o:p></o:p></span></p>
</div>
<blockquote style="border:none;border-left:solid #CCCCCC
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6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hello,<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Any
ideas on this ? <span style="font-family:"Segoe
UI Emoji",sans-serif">😊</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span
lang="FR">De :</span></b><span lang="FR">
sr-users [mailto:<a
href="mailto:sr-users-bounces@lists.kamailio.org"
target="_blank" moz-do-not-send="true">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" moz-do-not-send="true">sr-users@lists.kamailio.org</a>><br>
<b>Objet :</b> [SR-Users] Problem Proxy</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
<div>
<div>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hello
the list,<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">I have a problem on the proxy with the
audio between two calls bridged by a UAC.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">When I made a normal call, no problems.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">My UAC is nated.
</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">UAC > Router > KAMAILIO</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Frames arrives with private IP in the
SDP.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">U 2018/01/18 21:50:16.798581
<a href="http://217.112.180.235:1024"
target="_blank" moz-do-not-send="true">217.112.180.235:1024</a>
->
<a href="http://217.112.180.10:5060" target="_blank"
moz-do-not-send="true">217.112.180.10:5060</a></span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">SIP/2.0 200 OK.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Via: SIP/2.0/UDP
217.112.180.10;branch=z9hG4bK2d06.2f2a1856bde881173a3fc413c4136b83.0.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Via: SIP/2.0/UDP
84.14.241.179:5060;rport=5060;branch=z9hG4bK0dBe3143bcf7f60a70b.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Record-Route: <<a
href="sip:217.112.180.10;lr=on;ftag=gK0d4dfe6f;did=227.c0d2;nat=yes"
moz-do-not-send="true">sip:217.112.180.10;lr=on;ftag=gK0d4dfe6f;did=227.c0d2;nat=yes</a>>.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">From: <<a href="sip:32XXXXXX87@%20"
moz-do-not-send="true">sip:32XXXXXX87@
</a>>;tag=gK0d4dfe6f.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Call-ID:
<a href="mailto:940401290_111374574@84.14.241.179"
target="_blank" moz-do-not-send="true">940401290_111374574@84.14.241.179</a>.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">CSeq: 29328 INVITE.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Contact: <<a
href="sip:32XXXXXX61@192.168.2.2:5060;transport=udp"
moz-do-not-send="true">sip:32XXXXXX61@192.168.2.2:5060;transport=udp</a>>.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Allow:
INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Supported: timer,100rel.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Server: IP Office 10.1.0.0.0 build 237.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Min-SE:
1800.<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Require:
timer.<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Session-Expires:
1800;refresher=uas.<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">To: <<a
href="sip:32XXXXXX61@217.112.180.235"
moz-do-not-send="true">sip:32XXXXXX61@217.112.180.235</a>>;tag=998e429e819ba686.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Content-Type: application/sdp.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Content-Length: 202.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">v=0.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">o=UserA 3721571424 1025404311 IN IP4
192.168.2.2.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">s=Session SDP.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">c=IN IP4 192.168.2.2.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">t=0 0.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">m=audio 49154 RTP/AVP 9 101.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">a=rtpmap:9 G722/8000.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">a=rtpmap:101 telephone-event/8000.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">a=fmtp:101 0-15.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">I don’t understand why but the proxy
(in case of an incoming call) succeed to determine
the public IP.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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" moz-do-not-send="true">217.112.180.235:49154</a>
(RTP)</span></b><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Jan 18 21:40:08 proxy1 rtpproxy[1314]:
INFO:rxmit_packets:1fb3f1c6c8dfe738221842406be48450:
guessing RTCP port for caller to be 49155</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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" moz-do-not-send="true">217.112.180.235:49155</a>
(RTCP)</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Don’t know why because the only
information in SDP is 192.168.2.2</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">So I have audio in this case.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">When I setup a bridge on the UAC to a
second number, we have an issue. ( Kamailio 4.4.6 )</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">This is the same frames</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">U 2018/01/18 21:51:26.607270
<a href="http://217.112.180.235:1024"
target="_blank" moz-do-not-send="true">217.112.180.235:1024</a>
->
<a href="http://217.112.180.10:5060" target="_blank"
moz-do-not-send="true">217.112.180.10:5060</a></span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">SIP/2.0 200 OK.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Via: SIP/2.0/UDP
217.112.180.10;branch=z9hG4bK4181.bb7aab84b6fb0aea5836b4d8874406ec.0.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Via: SIP/2.0/UDP
84.14.241.179:5060;rport=5060;branch=z9hG4bK0bB16ee5a3d300fee16.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Record-Route: <<a
href="sip:217.112.180.10;lr=on;ftag=gK0b5d7652;did=cc6.5452;nat=yes"
moz-do-not-send="true">sip:217.112.180.10;lr=on;ftag=gK0b5d7652;did=cc6.5452;nat=yes</a>>.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">From: <<a href="sip:32XXXXXX87@%20"
moz-do-not-send="true">sip:32XXXXXX87@
</a>>;tag=gK0b5d7652.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Call-ID:
<a href="mailto:940248136_13287504@84.14.241.179"
target="_blank" moz-do-not-send="true">940248136_13287504@84.14.241.179</a>.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">CSeq: 21946 INVITE.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Contact: <<a
href="sip:32XXXXXX61@192.168.2.2:5060;transport=udp"
moz-do-not-send="true">sip:32XXXXXX61@192.168.2.2:5060;transport=udp</a>>.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Allow:
INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Supported: timer,100rel.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Server: IP Office 10.1.0.0.0 build 237.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Min-SE:
1800.<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Require:
timer.<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Session-Expires:
1800;refresher=uas.<o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">To: <<a
href="sip:32XXXXXX61@217.112.180.235"
moz-do-not-send="true">sip:32XXXXXX61@217.112.180.235</a>>;tag=559c99f5edcab5d4.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Content-Type: application/sdp.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">Content-Length: 202.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">v=0.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">o=UserA 1781830446 4071482272 IN IP4
192.168.2.2.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">s=Session SDP.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">c=IN IP4 192.168.2.2.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">t=0 0.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">m=audio 49156 RTP/AVP 8 101.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">a=rtpmap:8 PCMA/8000.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">a=rtpmap:101 telephone-event/8000.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">a=fmtp:101 0-16.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">But in this case no audio</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">RTCP detected but no the RTP.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US">He took the private ip address
“192.168.2.2” and this is the reason of the “no
audio”.</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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" moz-do-not-send="true">
INFO:rtpp_command_ul_handle:940248136_13287504@84.14.241.179</a>: lookup
on ports 11264/10446, session timer restarted</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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" moz-do-not-send="true">
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"
moz-do-not-send="true">192.168.2.2:49156</a></span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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"
moz-do-not-send="true">79.137.49.139:39176</a>
(RTP)</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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" moz-do-not-send="true">217.112.180.235:49155</a>
(RTCP)</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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" moz-do-not-send="true">
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" moz-do-not-send="true">217.112.180.235:49157</a>
(RTCP)</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><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,</span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"
style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span
lang="EN-US"> </span><o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-IE">_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org"
target="_blank" moz-do-not-send="true">sr-users@lists.kamailio.org</a><br>
<a
href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users"
target="_blank" moz-do-not-send="true">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><o:p></o:p></span></p>
</blockquote>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Kamailio (SER) - Users Mailing List
<a class="moz-txt-link-abbreviated" href="mailto:sr-users@lists.kamailio.org">sr-users@lists.kamailio.org</a>
<a class="moz-txt-link-freetext" href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - March 5-7, 2018, Berlin - <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
Kamailio World Conference - May 14-16, 2018 - <a class="moz-txt-link-abbreviated" href="http://www.kamailioworld.com">www.kamailioworld.com</a></pre>
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