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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;mso-fareast-language:EN-US">It sounds like the vendor is handling NAT traversal on their side. They will be assuming that Asterisk is behind NAT, because of the presence of
private IP addresses – particularly in the contact, and will be rewriting various parts.<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">They may be able to disable this for you – otherwise you’ll need to rewrite the headers yourself.<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"> sr-users [mailto:sr-users-bounces@lists.sip-router.org]
<b>On Behalf Of </b>Nelson Migliaro<br>
<b>Sent:</b> 17 October 2016 18:23<br>
<b>To:</b> Kamailio (SER) - Users Mailing List <sr-users@lists.sip-router.org><br>
<b>Subject:</b> [SR-Users] BYE issue<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hello everybody,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">I am having issues with one SIP vendor.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">I have a Kamailio in bridge mode (private IP / Public IP) and some Asterisk and Media Gateways.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">Calls get established and I have two way audio but when the remote party hangs up the call, the BYE arrives to the Kamailio and does not move forward.<o:p></o:p></p>
</div>
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<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I think the problem is SIP vendor rewrite the BYE header and change the asterisk IP with the public IP of the kamailio.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">The IP that appears in the header of the BYE have to be the same that appears in the contact (UAC that send the call, in my case the Asterisk). Vendor should not change that IP. ¿Am I correct?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thank you<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">-----------------------------------------------------------------------------------------------------<o:p></o:p></p>
</div>
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<div>
<p class="MsoNormal">INVITE<o:p></o:p></p>
</div>
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<p class="MsoNormal">----------------------------------------------------------------------------------------------------<o:p></o:p></p>
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<div>
<p class="MsoNormal">2016/10/17 18:50:49.110967 PUBLIC-KAMAILIO-IP:5060 -> VENDOR-IP:6060<o:p></o:p></p>
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<div>
<p class="MsoNormal">INVITE <a href="sip:DESTINATION-NUMBER@VENDOR-IP:6060">sip:DESTINATION-NUMBER@VENDOR-IP:6060</a> SIP/2.0<o:p></o:p></p>
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<div>
<p class="MsoNormal">Record-Route: <sip:PUBLIC-KAMAILIO-IP;r2=on;lr=on;ftag=as5e87b96c;vsf=AAAAAAAAAAAAAAAAAABQUk9fRVYAU0UuODY-;vst=AAAAAAQEAw8MDgsAAHYAcVddXkZWRVVDVl1MMDIudm9pY2U<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">G9jYWw-;did=09b.9572;nat=yes><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Record-Route: <sip:PRIVATE-KAMAILIO-IP;r2=on;lr=on;ftag=as5e87b96c;vsf=AAAAAAAAAAAAAAAAAABQUk9fRVYAU0UuODY-;vst=AAAAAAQEAw8MDgsAAHYAcVddXkZWRVVDVl1MMDIudm9pY2U<o:p></o:p></p>
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<div>
<p class="MsoNormal">G9jYWw-;did=09b.9572;nat=yes><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Via: SIP/2.0/UDP PUBLIC-KAMAILIO-IP;branch=z9hG4bK06a.07540d0e2f32a811ecf9c0a5235dc77a.1<o:p></o:p></p>
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<div>
<p class="MsoNormal">Via: SIP/2.0/UDP PRIVATE-ASTERISK-IP:5060;received=PRIVATE-ASTERISK-IP;branch=z9hG4bK6bb5a7b3;rport=5060<o:p></o:p></p>
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<div>
<p class="MsoNormal">Max-Forwards: 69<o:p></o:p></p>
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<div>
<p class="MsoNormal">From: "SOURCE-NUMBER" <<a href="sip:SOURCE-NUMBER@MY-COMPANY">sip:SOURCE-NUMBER@MY-COMPANY</a>>;tag=as5e87b96c<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">To: <<a href="sip:DESTINATION-NUMBER@VENDOR-IP">sip:DESTINATION-NUMBER@VENDOR-IP</a>><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Contact: <<a href="sip:SOURCE-NUMBER@PRIVATE-ASTERISK-IP:5060">sip:SOURCE-NUMBER@PRIVATE-ASTERISK-IP:5060</a>><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Call-ID: 025cc3717ba59faa000cf4db6f8be588@PRIVATE-ASTERISK-IP:5060<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">CSeq: 102 INVITE<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">User-Agent: UAC<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Date: Mon, 17 Oct 2016 16:53:35 GMT<o:p></o:p></p>
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<div>
<p class="MsoNormal">Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Supported: replaces, timer<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Content-Type: application/sdp<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Content-Length: 269<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal">v=0<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">o=root 292850421 292850421 IN IP4 PUBLIC-KAMAILIO-IP<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">s=Asterisk PBX<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">c=IN IP4 PUBLIC-KAMAILIO-IP<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">t=0 0<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">m=audio 23456 RTP/AVP 18 101<o:p></o:p></p>
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<div>
<p class="MsoNormal">a=rtpmap:18 G729/8000<o:p></o:p></p>
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<p class="MsoNormal">a=fmtp:18 annexb=no<o:p></o:p></p>
</div>
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<p class="MsoNormal">a=rtpmap:101 telephone-event/8000<o:p></o:p></p>
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<p class="MsoNormal">a=fmtp:101 0-16<o:p></o:p></p>
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<p class="MsoNormal">a=ptime:20<o:p></o:p></p>
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<p class="MsoNormal">a=sendrecv<o:p></o:p></p>
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<p class="MsoNormal">a=nortpproxy:yes<o:p></o:p></p>
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</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">-----------------------------------------------------------------------------------------------------<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">BYE<o:p></o:p></p>
</div>
<div>
<div>
<p class="MsoNormal">-----------------------------------------------------------------------------------------------------<o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class="MsoNormal">2016/10/17 18:50:58.241666 VENDOR-IP:6060 -> PUBLIC-KAMAILIO-IP:5060<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">BYE <a href="sip:SOURCE-NUMBER@PUBLIC-KAMAILIO-IP:5060">sip:SOURCE-NUMBER@PUBLIC-KAMAILIO-IP:5060</a> SIP/2.0<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Via: SIP/2.0/UDP VENDOR-IP:6060;branch=z9hG4bKeff4.48943e76.0<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Via: SIP/2.0/UDP VENDOR-IP:5060;branch=z9hG4bK1d4e605e4ll19f74fBYE421ce8658050206<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Max-Forwards: 34<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Route: <<a href="sip:PUBLIC-KAMAILIO-IP;lr;r2=on;ftag=as5e87b96c;vsf=AAAAAAAAAAAAAAAAAABQUk9fRVYAU0UuODY-;vst=AAAAAAQEAw8MDgsAAHYAcVddXkZWRVVDVl1">sip:PUBLIC-KAMAILIO-IP;lr;r2=on;ftag=as5e87b96c;vsf=AAAAAAAAAAAAAAAAAABQUk9fRVYAU0UuODY-;vst=AAAAAAQEAw8MDgsAAHYAcVddXkZWRVVDVl1</a>><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Route: <<a href="sip:PRIVATE-KAMAILIO-IP;lr;r2=on;ftag=as5e87b96c;vsf=AAAAAAAAAAAAAAAAAABQUk9fRVYAU0UuODY-;vst=AAAAAAQEAw8MDgsAAHYAcVddXkZWRVVDVl1">sip:PRIVATE-KAMAILIO-IP;lr;r2=on;ftag=as5e87b96c;vsf=AAAAAAAAAAAAAAAAAABQUk9fRVYAU0UuODY-;vst=AAAAAAQEAw8MDgsAAHYAcVddXkZWRVVDVl1</a>><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">To: "SOURCE-NUMBER"<<a href="sip:SOURCE-NUMBER@YO">sip:SOURCE-NUMBER@YO</a>>;tag=as5e87b96c<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">From: <<a href="sip:DESTINATION-NUMBER@PUBLIC-KAMAILIO-IP">sip:DESTINATION-NUMBER@PUBLIC-KAMAILIO-IP</a>>;tag=421ce86-co1547-INS001<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Call-ID: 025cc3717ba59faa000cf4db6f8be588@PRIVATE-ASTERISK-IP:5060<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">CSeq: 154701 BYE<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">User-Agent: VENDOR<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Content-Length: 0<o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">-----------------------------------------------------------------------------------------------------<o:p></o:p></p>
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<div>
<p class="MsoNormal"><o:p> </o:p></p>
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<div>
<p class="MsoNormal"><o:p> </o:p></p>
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