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--></style></head><body lang="ES-CL" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas">Hello.</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas">I was wondering if someone can help me with some problem that I’m having with the combination of FreeSwitch and Kamailio as SBC.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas">I’m having and ACK not routed by kamailio and dropped.</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas">Here is the debug.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"><a href="http://100.100.100.211:5060">100.100.100.211:5060</a> : Kamailio</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"><a href="http://100.100.100.211:5090">100.100.100.211:5090</a> : FreeSwitch</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas">100.100.100.108 : Caller </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas">100.100.100.212 : Calle</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p><p class="MsoNormal">
<span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Request-Line: INVITE <a href="mailto:sip%3A02131234@100.100.100.211">sip:02131234@100.100.100.211</a> SIP/2.0</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Method: INVITE</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> [Resent Packet: False]</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Message Header</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Via: SIP/2.0/UDP 64.76.148.108:42772;branch=z9hG4bK-d8754z-da0b2e4b1b5d0843-1---d8754z-;rport</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Max-Forwards: 70</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Contact: <<a href="http://sip:1234@64.76.148.108:42772">sip:1234@64.76.148.108:42772</a>></span></p><p class="MsoNormal">
<span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> To: <<a href="mailto:sip%3A02131234@100.100.100.211">sip:02131234@100.100.100.211</a>></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> From: "camila"<<a href="mailto:sip%3A1234@100.100.100.211">sip:1234@100.100.100.211</a>>;tag=8422566b</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Call-ID: MjY2NDY5NTE3OTk4MzdmMjE0YWQxNWQ4MWFmY2JhMWQ.</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> CSeq: 1 INVITE</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Content-Type: application/sdp</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> User-Agent: Bria release 2.2 stamp 45414</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Content-Length: 388</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Message Body</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Session Description Protocol</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Status-Line: SIP/2.0 100 trying -- your call is important to us</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Status-Code: 100</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> [Resent Packet: False]</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Message Header</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Via: SIP/2.0/UDP 64.76.148.108:42772;branch=z9hG4bK-d8754z-da0b2e4b1b5d0843-1---d8754z-;rport=42772</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> To: <<a href="mailto:sip%3A02131234@100.100.100.211">sip:02131234@100.100.100.211</a>></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> From: "camila"<<a href="mailto:sip%3A1234@100.100.100.211">sip:1234@100.100.100.211</a>>;tag=8422566b</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Call-ID: MjY2NDY5NTE3OTk4MzdmMjE0YWQxNWQ4MWFmY2JhMWQ.</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> CSeq: 1 INVITE</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Server: kamailio (3.1.1 (i386/linux))</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Content-Length: 0</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Status-Line: SIP/2.0 200 OK</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Status-Code: 200</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> [Resent Packet: False]</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Message Header</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Via: SIP/2.0/UDP 64.76.148.108:42772;branch=z9hG4bK-d8754z-da0b2e4b1b5d0843-1---d8754z-;rport=42772</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Record-Route: <sip:100.100.100.211;lr=on></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> From: "camila" <<a href="mailto:sip%3A1234@100.100.100.211">sip:1234@100.100.100.211</a>>;tag=8422566b</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> To: <<a href="mailto:sip%3A02131234@100.100.100.211">sip:02131234@100.100.100.211</a>>;tag=pBZjZayFUeDSp</span></p><p class="MsoNormal">
<span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Call-ID: MjY2NDY5NTE3OTk4MzdmMjE0YWQxNWQ4MWFmY2JhMWQ.</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> CSeq: 1 INVITE</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Contact: <sip:02131234@100.100.100.211:5090;transport=udp></span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d41e649 2011-01-11 12-25-55 -0600</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Accept: application/sdp</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Message Body</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Session Description Protocol</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Request-Line: ACK sip:02131234@100.100.100.211:5090;transport=udp SIP/2.0</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Method: ACK</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> [Resent Packet: False]</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Message Header</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Via: SIP/2.0/UDP 64.76.148.108:42772;branch=z9hG4bK-d8754z-182d537bcb534165-1---d8754z-;rport</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Max-Forwards: 70</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Route: <sip:100.100.100.211;lr></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Contact: <<a href="http://sip:1234@64.76.148.108:42772">sip:1234@64.76.148.108:42772</a>></span></p><p class="MsoNormal">
<span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> To: <<a href="mailto:sip%3A02131234@100.100.100.211">sip:02131234@100.100.100.211</a>>;tag=pBZjZayFUeDSp</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> From: "camila"<<a href="mailto:sip%3A1234@100.100.100.211">sip:1234@100.100.100.211</a>>;tag=8422566b</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Call-ID: MjY2NDY5NTE3OTk4MzdmMjE0YWQxNWQ4MWFmY2JhMWQ.</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> CSeq: 1 ACK</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> User-Agent: Bria release 2.2 stamp 45414</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Content-Length: 0</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Status-Line: SIP/2.0 200 OK</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Status-Code: 200</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> [Resent Packet: True]</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> [Suspected resend of frame: 7]</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Message Header</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span><span style="font-size:10.0pt;font-family:Consolas">Via: SIP/2.0/UDP 64.76.148.108:42772;branch=z9hG4bK-d8754z-da0b2e4b1b5d0843-1---d8754z-;rport=42772</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas"> </span><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas">Record-Route: <sip:100.100.100.211;lr=on></span></p><p class="MsoNormal">
<span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> From: "camila" <<a href="mailto:sip%3A1234@100.100.100.211">sip:1234@100.100.100.211</a>>;tag=8422566b</span></p><p class="MsoNormal">
<span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> To: <<a href="mailto:sip%3A02131234@100.100.100.211">sip:02131234@100.100.100.211</a>>;tag=pBZjZayFUeDSp</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Call-ID: MjY2NDY5NTE3OTk4MzdmMjE0YWQxNWQ4MWFmY2JhMWQ.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> CSeq: 1 INVITE</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Contact: <sip:02131234@100.100.100.211:5090;transport=udp></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d41e649 2011-01-11 12-25-55 -0600</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Accept: application/sdp</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Message Body</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> Session Description Protocol</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas">When I removed Freeswitch from the path the ACK is routed ok.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas">The ACK is routed by loose_route, but then it fails because the</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas">if ( t_check_trans() ) {</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p><p class="MsoNormal">
<span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas">What could be happening?</span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:Consolas"> </span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas">Regards,</span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas">Ricardo.-</span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas"> </span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Ricardo Martínez </span></b><b><span style="font-size:10.0pt;font-family:"Trebuchet MS","sans-serif";color:#FFC000">|</span></b><span style="font-size:10.0pt;font-family:"Trebuchet MS","sans-serif";color:gray"> Ingeniero de Desarrollo</span><span style="font-size:10.0pt;font-family:"Trebuchet MS","sans-serif";color:black"><br>
RedVoiss </span><b><span style="font-size:10.0pt;font-family:"Trebuchet MS","sans-serif";color:#FFC000">|</span></b><span style="font-size:8.0pt;font-family:"Trebuchet MS","sans-serif";color:black"> </span><span style="font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:#7F7F7F"><a href="mailto:rmartinez@redvoiss.net">rmartinez@redvoiss.net</a></span><span style="font-size:8.0pt;font-family:"Trebuchet MS","sans-serif";color:black"></span></p>
<p class="MsoNormal" style="margin-top:3.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:#595959">Santiago</span><span lang="EN-US" style="font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:gray"> - Chile </span><b><span lang="EN-US" style="font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:#FFC000">|</span></b><span lang="EN-US" style="font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:gray"> +56 2 2408196<br>
</span><span lang="EN-US" style="font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:#7F7F7F"><a href="http://www.redvoiss.net">www.redvoiss.net</a> </span><span lang="EN-US" style="font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:black"></span></p>
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