<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 12 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri","sans-serif";
color:windowtext;}
p.Tekstdymka, li.Tekstdymka, div.Tekstdymka
{mso-style-name:"Tekst dymka";
mso-style-link:"Tekst dymka Znak";
margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
span.TekstdymkaZnak
{mso-style-name:"Tekst dymka Znak";
mso-style-priority:99;
mso-style-link:"Tekst dymka";
font-family:"Tahoma","sans-serif";}
span.EmailStyle22
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span style="color:#1F497D">Our Kamailio statefully forwards requests to our Asterisk cluster.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Sip session timers fail, whether our Asterisk servers are UAS or UAC.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Kamailio receives the re(INVITE), and just dispatches it out using the default algorithm.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I see the record-route header, so I’m not sure what else is missing..<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">(aside from the last sip packet showing the packet dispatched to a new asterisk peer)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Anybody have some troubleshooting tips for us?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Loose_route should match the transaction based on record-route, is my understanding.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Same thing happens whether carrier re(INVITE)’s or Asterisk does. Just gets dispatched to the next peer in the list.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">U kamailio:5060 -> Carrier:5060<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> SIP/2.0 200 OK..Via: SIP/2.0/UDP Carrier:5060;rport=5060;branch=z9hG4bK0cB8c2920fa87e47e82..<b>Record-Route: <<a href="sip:192.168.9.130;lr=on">sip:kamailio;lr=on</a>>..</b>From: <sip:From_User@carrier:50<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> 60>;tag=gK0c5010b1..To: <<a href="sip:4704430714@192.168.9.130:5060">sip:To_User@kamailio:5060</a>>;tag=as7651768b..Call-ID:
<a href="mailto:638356677_31693090@66.62.60.238..CSeq">638356677_31693090@carrier..CSeq</a>: 10795 INVITE..Server: Asterisk PBX 11.2.1..Allow: IN<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> VITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH..Supported: replaces, timer..Session-Expires: 1800;refresher=uac..Contact: <sip:10.10.10.10;redact1=abc<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> fhCOikg7YDp7YWcOYDg7wWgOnkg3YeGKYWf9Yuphcp**>..Content-Type: application/sdp..Require: timer..Content-Length: 255....v=0..o=root 1728271566 1728271566 IN IP4 kamailio..s=A<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> sterisk PBX 11.2.1..c=IN IP4 kamailio..t=0 0..m=audio 61004 RTP/AVP 0 101..a=rtpmap:0 PCMU/8000..a=rtpmap:101 telephone-event/8000..a=fmtp:101 0-16..a=ptime:20..a=sendrecv<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> ..a=nortpproxy:yes..<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">U Carrier:5060 -> kamailio:5060<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> ACK <a href="sip:10.10.10.10;redact1=abcfhCOikg7YDp7YWcOYDg7wWgOnkg3YeGKYWf9Yuphcp**">
sip:10.10.10.10;redact1=abcfhCOikg7YDp7YWcOYDg7wWgOnkg3YeGKYWf9Yuphcp**</a> SIP/2.0..Via: SIP/2.0/UDP Carrier:5060;branch=z9hG4bK0cB8c3710b32c17351f..From: <sip:From_User<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> <a href="mailto:6@66.62.60.238:5060%3e;tag=gK0c5010b1..To">
6@Carrier:5060>;tag=gK0c5010b1..To</a>: <<a href="sip:4704430714@192.168.9.130:5060">sip:To_User@kamailio:5060</a>>;tag=as7651768b..Call-ID:
<a href="mailto:638356677_31693090@66.62.60.238..CSeq">638356677_31693090@carrier..CSeq</a>: 10795 ACK..Max-Forwards: 70..Route:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> <<a href="sip:192.168.9.130:5060;lr=on">sip:kamailio:5060;lr=on</a>>..Content-Length: 0....<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">U kamailio:5060 -> Asterisk:5060<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> ACK <a href="sip:14704430714@10.1.6.247:5060">
sip:1To_User@Asterisk:5060</a> SIP/2.0..Via: SIP/2.0/UDP kamailio;branch=z9hG4bKcydzigwkX..Via: SIP/2.0/UDP 10.10.10.10;redact2=xyzA7CwnD23cQBsv6prYkU3Yk23Ykp3ckcGikA<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> OYkpzfRN1fRwBYuphcWZAHW4IUMUzURVT.EYSP8SLJgf7UIaOU72GUDcMcuNecDVkcufDYu6E..From: <<a href="sip:13039972016@66.62.60.238:5060">sip:From_User@Carrier:5060</a>>;tag=gK0c5010b1..To: <<a href="sip:4704430714@192.168.9.130:5060">sip:To_User@kamailio:5060</a>>;tag<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> =as7651768b..Call-ID: <a href="mailto:638356677_31693090@66.62.60.238..CSeq">
638356677_31693090@carrier..CSeq</a>: 10795 ACK..Max-Forwards: 69..Content-Length: 0....<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">U Carrier:5060 -> kamailio:5060<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> INVITE <a href="sip:10.10.10.10;redact1=abcfhCOikg7YDp7YWcOYDg7wWgOnkg3YeGKYWf9Yuphcp**">
sip:10.10.10.10;redact1=abcfhCOikg7YDp7YWcOYDg7wWgOnkg3YeGKYWf9Yuphcp**</a> SIP/2.0..Via: SIP/2.0/UDP Carrier:5060;branch=z9hG4bK0cBb96217452c17351f..From: <sip:From_User<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><a href="@Carrier:5060%3e;tag=gK0c5010b1..To">@Carrier:5060>;tag=gK0c5010b1..To</a>: <<a href="sip:4704430714@192.168.9.130:5060">sip:To_User@kamailio:5060</a>>;tag=as7651768b..Call-ID:
<a href="mailto:638356677_31693090@66.62.60.238..CSeq">638356677_31693090@carrier..CSeq</a>: 10796 INVITE..Max-Forwards: 70..<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> Allow: INVITE,ACK,CANCEL,BYE,REGISTER,REFER,INFO,SUBSCRIBE,NOTIFY,PRACK,UPDATE,OPTIONS..Accept: application/sdp, application/isup, application/dtmf, application/dtmf-relay, mu<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> ltipart/mixed..Contact: <<a href="sip:13039972016@66.62.60.238:5060">sip:From_User@Carrier:5060</a>>..Route: <<a href="sip:192.168.9.130:5060;lr=on">sip:kamailio:5060;lr=on</a>>..Supported: timer..Session-Expires:
1800;refresher=uac..Min-SE: 90..Content-L<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> ength: 234..Content-Disposition: session; handling=required..Content-Type: application/sdp....v=0..o=Sonus_UAC 3540 9911 IN IP4 carrier..s=SIP Media Capabilities..c=IN IP<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> 4 Carrier_MGP..t=0 0..m=audio 22406 RTP/AVP 0 100..a=rtpmap:0 PCMU/8000..a=rtpmap:100 telephone-event/8000..a=fmtp:100 0-15..a=sendrecv..a=maxptime:20..<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<div>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td style="padding:0in 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:8.5pt;font-family:"Helvetica","sans-serif";color:#333333">Matt Scott</span></b><b><span style="font-size:8.5pt;font-family:"Helvetica","sans-serif";color:#333333"><o:p></o:p></span></b></p>
</td>
</tr>
</tbody>
</table>
</div>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
</div>
</body>
</html>