<span style="font-family: trebuchet ms,sans-serif;">Hi guys,</span><br style="font-family: trebuchet ms,sans-serif;"><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">I'm facing an awkward issue with a Kamailio (1.4.3-notls (i386/linux)) regarding PRACK messages.</span><br style="font-family: trebuchet ms,sans-serif;">
<br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">I'm migrating an old OpenSER (1.2.2-notls (i386/linux)) to this new Kamailio that is connected to some customer GWs. The GWs we use are Huawei AR2810 and Cisco AS5350.</span><br style="font-family: trebuchet ms,sans-serif;">
<br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">Both GWs support 100rel and for some signalling they send PRACK messages that are forwarded by OpenSER but consumed by Kamailio.</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">What I was able to troubleshoot shown that Kamailio is not recognizing the lr=on on the header. I tested for PRACK messages within the following segment:</span><br style="font-family: trebuchet ms,sans-serif;">
<br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: courier new,monospace;"># subsequent messages within a dialog should take the</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"># path determined by record-routing</span><br style="font-family: courier new,monospace;">
<br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">if (is_method("PRACK"))</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">{</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> xlog("L_ERR", "PRACK: Outside LR...\n");</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">};</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">if (loose_route())</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">{</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> if (is_method("PRACK"))</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> {</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> xlog("L_ERR", "PRACK: Inside LR...\n");</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> };</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> # mark routing logic in request</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> append_hf("P-hint: rr-enforced\r\n");</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> route(1);</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">};</span><br style="font-family: trebuchet ms,sans-serif;">
<br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">Did anyone have a similar issue with this version of Kamailio?</span><br style="font-family: trebuchet ms,sans-serif;">
<br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">I captured the signalling for both proxies as follows:</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">KAMAILIO(</span><font style="font-family: trebuchet ms,sans-serif;" size="2">192.168.200.130)<br>
AS5350(</font><font style="font-family: trebuchet ms,sans-serif;" size="2">192.168.200.40)<br>AR2810(</font><font style="font-family: trebuchet ms,sans-serif;" size="2">192.168.216.4)</font><br style="font-family: trebuchet ms,sans-serif;">
<font style="font-family: trebuchet ms,sans-serif;" size="2">#<br>U <a href="http://192.168.200.40:49395">192.168.200.40:49395</a> -> <a href="http://192.168.200.130:5060">192.168.200.130:5060</a><br> INVITE <a href="http://sip:3516380070@192.168.200.130:5060">sip:3516380070@192.168.200.130:5060</a> SIP/2.0..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK6107AA91..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;<br>
tag=D41203B4-1763..To: <<a href="mailto:sip%3A3516380070@192.168.200.130">sip:3516380070@192.168.200.130</a>>..Date: Wed, 10 Jun 2009 14:26:12 GMT..Call-ID: <a href="mailto:7BE3750B-550111DE-86AD96C1-6209D7B9@192.168.200.4">7BE3750B-550111DE-86AD96C1-6209D7B9@192.168.200.4</a><br>
0..Supported: 100rel,timer,replaces..Min-SE: 1800..Cisco-Guid: 2078424251-1426133470-2747138075-1395155982..User-Agent: Cisco-SIPGateway/IOS-12.x..Allo<br> w: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO, UPDATE, REGISTER..CSeq: 101 INVITE..Max-Forwards: 70..Remote-Party-I<br>
D: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;party=calling;screen=yes;privacy=off..Timestamp: 1244643972..Contact: <<a href="http://sip:1143314808@192.168.200.40:5060">sip:1143314808@192.168.200.40:5060</a>>..Expires:<br>
180..Allow-Events: telephone-event..Content-Type: application/sdp..Content-Length: 302....v=0..o=CiscoSystemsSIP-GW-UserAgent 8434 7851 IN IP4 192.168.2<br> 00.40..s=SIP Call..c=IN IP4 192.168.200.40..t=0 0..m=audio 16836 RTP/AVP 18 8 100..c=IN IP4 192.168.200.40..a=rtpmap:18 G729/8000..a=fmtp:18 annexb=no..<br>
a=rtpmap:8 PCMA/8000..a=rtpmap:100 X-NSE/8000..a=fmtp:100 192-194..a=direction:passive..<br>#<br>U <a href="http://192.168.200.130:5060">192.168.200.130:5060</a> -> <a href="http://192.168.216.4:5060">192.168.216.4:5060</a><br>
INVITE <a href="mailto:sip%3A3516380070@192.168.216.4">sip:3516380070@192.168.216.4</a> SIP/2.0..Record-Route: <sip:192.168.200.130;lr=on;ftag=D41203B4-1763>..Via: SIP/2.0/UDP 192.168.200.130;branch=z9hG4<br> bKf574.3149a801.0..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK6107AA91..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D41203B4-1763..To: <sip:35163<br>
<a href="mailto:80070@192.168.200.130">80070@192.168.200.130</a>>..Date: Wed, 10 Jun 2009 14:26:12 GMT..Call-ID: 7BE3750B-550111DE-86AD96C1-6209D7B9@192.168.200.40..Supported: 100rel,timer,replac<br> es..Min-SE: 1800..Cisco-Guid: 2078424251-1426133470-2747138075-1395155982..User-Agent: Cisco-SIPGateway/IOS-12.x..Allow: INVITE, OPTIONS, BYE, CANCEL,<br>
ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO, UPDATE, REGISTER..CSeq: 101 INVITE..Max-Forwards: 69..Remote-Party-ID: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a><br> >;party=calling;screen=yes;privacy=off..Timestamp: 1244643972..Contact: <<a href="http://sip:1143314808@192.168.200.40:5060">sip:1143314808@192.168.200.40:5060</a>>..Expires: 180..Allow-Events: telephone-even<br>
t..Content-Type: application/sdp..Content-Length: 302....v=0..o=CiscoSystemsSIP-GW-UserAgent 8434 7851 IN IP4 192.168.200.40..s=SIP Call..c=IN IP4 192.1<br> 68.200.40..t=0 0..m=audio 16836 RTP/AVP 18 8 100..c=IN IP4 192.168.200.40..a=rtpmap:18 G729/8000..a=fmtp:18 annexb=no..a=rtpmap:8 PCMA/8000..a=rtpmap:10<br>
0 X-NSE/8000..a=fmtp:100 192-194..a=direction:passive..<br>#<br>U <a href="http://192.168.200.130:5060">192.168.200.130:5060</a> -> <a href="http://192.168.200.40:5060">192.168.200.40:5060</a><br> SIP/2.0 100 Giving a try..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK6107AA91..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D41203B4-1763..To: <si<br>
<a href="mailto:p%3A3516380070@192.168.200.130">p:3516380070@192.168.200.130</a>>..Call-ID: 7BE3750B-550111DE-86AD96C1-6209D7B9@192.168.200.40..CSeq: 101 INVITE..Server: Kamailio (1.4.3-notls (i386/linux)<br> )..Content-Length: 0....<br>
#<br>U <a href="http://192.168.216.4:5060">192.168.216.4:5060</a> -> <a href="http://192.168.200.130:5060">192.168.200.130:5060</a><br> SIP/2.0 100 Trying..Call-ID:7BE3750B-550111DE-86AD96C1-6209D7B9@192.168.200.40..CSeq:101 INVITE..From:<<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D41203B4-1763.<br>
.To:<<a href="mailto:sip%3A3516380070@192.168.200.130">sip:3516380070@192.168.200.130</a>>..Via:SIP/2.0/UDP 192.168.200.130;branch=z9hG4bKf574.3149a801.0..Via:SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK6<br> 107AA91..Content-Length:0....<br>
#<br>U <a href="http://192.168.216.4:5060">192.168.216.4:5060</a> -> <a href="http://192.168.200.130:5060">192.168.200.130:5060</a><br> SIP/2.0 180 Ringing..Require:100rel..Supported:100rel..Record-Route:<sip:192.168.200.130;lr=on;ftag=D41203B4-1763>..Via:SIP/2.0/UDP 192.168.200.130;bran<br>
ch=z9hG4bKf574.3149a801.0..Via:SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK6107AA91..Call-ID:7BE3750B-550111DE-86AD96C1-6209D7B9@192.168.200.40..CSeq:<br> 101 INVITE..From:<<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D41203B4-1763..To:<<a href="mailto:sip%3A3516380070@192.168.200.130">sip:3516380070@192.168.200.130</a>>;tag=5358336B534F02B30582AFF0..RSeq:717562865..Co<br>
ntact:<<a href="http://sip:3516380070@192.168.200.130:5060">sip:3516380070@192.168.200.130:5060</a>>..Content-Length:0....<br>#<br>U <a href="http://192.168.200.130:5060">192.168.200.130:5060</a> -> <a href="http://192.168.200.40:5060">192.168.200.40:5060</a><br>
SIP/2.0 180 Ringing..Require:100rel..Supported:100rel..Record-Route:<sip:192.168.200.130;lr=on;ftag=D41203B4-1763>..Via:SIP/2.0/UDP <a href="http://192.168.200.40:5060">192.168.200.40:5060</a>;<br> branch=z9hG4bK6107AA91..Call-ID:7BE3750B-550111DE-86AD96C1-6209D7B9@192.168.200.40..CSeq:101 INVITE..From:<<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D41203B4-1<br>
763..To:<<a href="mailto:sip%3A3516380070@192.168.200.130">sip:3516380070@192.168.200.130</a>>;tag=5358336B534F02B30582AFF0..RSeq:717562865..Contact:<<a href="http://sip:3516380070@192.168.200.130:5060">sip:3516380070@192.168.200.130:5060</a>>..Content-Length:0..<br>
..<br>#<br>U <a href="http://192.168.200.40:49395">192.168.200.40:49395</a> -> <a href="http://192.168.200.130:5060">192.168.200.130:5060</a><br> PRACK <a href="http://sip:3516380070@192.168.200.130:5060">sip:3516380070@192.168.200.130:5060</a> SIP/2.0..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK6107D249F..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;<br>
tag=D41203B4-1763..To: <<a href="mailto:sip%3A3516380070@192.168.200.130">sip:3516380070@192.168.200.130</a>>;tag=5358336B534F02B30582AFF0..Date: Wed, 10 Jun 2009 14:26:12 GMT..Call-ID: 7BE3750B-550111DE-86<br> AD96C1-6209D7B9@192.168.200.40..CSeq: 102 PRACK..RAck: 717562865 101 INVITE..Route: <sip:192.168.200.130;lr=on;ftag=D41203B4-1763>..Max-Forwards: 70..Co<br>
ntent-Length: 0....<br>#<br>U <a href="http://192.168.216.4:5060">192.168.216.4:5060</a> -> <a href="http://192.168.200.130:5060">192.168.200.130:5060</a><br> SIP/2.0 180 Ringing..Require:100rel..Supported:100rel..Record-Route:<sip:192.168.200.130;lr=on;ftag=D41203B4-1763>..Via:SIP/2.0/UDP 192.168.200.130;bran<br>
ch=z9hG4bKf574.3149a801.0..Via:SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK6107AA91..Call-ID:7BE3750B-550111DE-86AD96C1-6209D7B9@192.168.200.40..CSeq:<br> 101 INVITE..From:<<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D41203B4-1763..To:<<a href="mailto:sip%3A3516380070@192.168.200.130">sip:3516380070@192.168.200.130</a>>;tag=5358336B534F02B30582AFF0..RSeq:717562865..Co<br>
ntact:<<a href="http://sip:3516380070@192.168.200.130:5060">sip:3516380070@192.168.200.130:5060</a>>..Content-Length:0....<br>#<br>U <a href="http://192.168.200.130:5060">192.168.200.130:5060</a> -> <a href="http://192.168.200.40:5060">192.168.200.40:5060</a><br>
SIP/2.0 180 Ringing..Require:100rel..Supported:100rel..Record-Route:<sip:192.168.200.130;lr=on;ftag=D41203B4-1763>..Via:SIP/2.0/UDP <a href="http://192.168.200.40:5060">192.168.200.40:5060</a>;<br> branch=z9hG4bK6107AA91..Call-ID:7BE3750B-550111DE-86AD96C1-6209D7B9@192.168.200.40..CSeq:101 INVITE..From:<<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D41203B4-1<br>
763..To:<<a href="mailto:sip%3A3516380070@192.168.200.130">sip:3516380070@192.168.200.130</a>>;tag=5358336B534F02B30582AFF0..RSeq:717562865..Contact:<<a href="http://sip:3516380070@192.168.200.130:5060">sip:3516380070@192.168.200.130:5060</a>>..Content-Length:0..<br>
..<br>#<br>U <a href="http://192.168.200.40:49395">192.168.200.40:49395</a> -> <a href="http://192.168.200.130:5060">192.168.200.130:5060</a><br> PRACK <a href="http://sip:3516380070@192.168.200.130:5060">sip:3516380070@192.168.200.130:5060</a> SIP/2.0..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK6107D249F..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;<br>
tag=D41203B4-1763..To: <<a href="mailto:sip%3A3516380070@192.168.200.130">sip:3516380070@192.168.200.130</a>>;tag=5358336B534F02B30582AFF0..Date: Wed, 10 Jun 2009 14:26:12 GMT..Call-ID: 7BE3750B-550111DE-86<br> AD96C1-6209D7B9@192.168.200.40..CSeq: 102 PRACK..RAck: 717562865 101 INVITE..Route: <sip:192.168.200.130;lr=on;ftag=D41203B4-1763>..Max-Forwards: 70..Co<br>
ntent-Length: 0....</font><br><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">And then for OPENSER</span><span style="font-family: trebuchet ms,sans-serif;">(</span><font style="font-family: trebuchet ms,sans-serif;" size="2">192.168.200.10)<br>
AS5350(</font><font style="font-family: trebuchet ms,sans-serif;" size="2">192.168.200.40)<br>
AR2810(</font><font style="font-family: trebuchet ms,sans-serif;" size="2">192.168.216.4)</font><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.200.40:50112">192.168.200.40:50112</a> -> <a href="http://192.168.200.10:5060">192.168.200.10:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> INVITE <a href="http://sip:3516380070@192.168.200.10:5060">sip:3516380070@192.168.200.10:5060</a> SIP/2.0..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK60D741D2C..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> tag=D3E4E024-AA5..To: <<a href="mailto:sip%3A3516380070@192.168.200.10">sip:3516380070@192.168.200.10</a>>..Date: Wed, 10 Jun 2009 13:36:54 GMT..Call-ID: <a href="mailto:98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40">98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40</a>.</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> .Supported: 100rel,timer,replaces..Min-SE: 1800..Cisco-Guid: 2560098254-1425674718-2728198171-1395155982..User-Agent: Cisco-SIPGateway/IOS-12.x..Allow:</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO, UPDATE, REGISTER..CSeq: 101 INVITE..Max-Forwards: 70..Remote-Party-ID:</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;party=calling;screen=yes;privacy=off..Timestamp: 1244641014..Contact: <<a href="http://sip:1143314808@192.168.200.40:5060">sip:1143314808@192.168.200.40:5060</a>>..Expires: 18</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 0..Allow-Events: telephone-event..Content-Type: application/sdp..Content-Length: 302....v=0..o=CiscoSystemsSIP-GW-UserAgent 2319 3741 IN IP4 192.168.200</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> .40..s=SIP Call..c=IN IP4 192.168.200.40..t=0 0..m=audio 17416 RTP/AVP 18 8 100..c=IN IP4 192.168.200.40..a=rtpmap:18 G729/8000..a=fmtp:18 annexb=no..a=</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> rtpmap:8 PCMA/8000..a=rtpmap:100 X-NSE/8000..a=fmtp:100 192-194..a=direction:passive..</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.200.10:5060">192.168.200.10:5060</a> -> <a href="http://192.168.200.40:5060">192.168.200.40:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> SIP/2.0 407 Proxy Authentication Required..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK60D741D2C..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D3E4</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> E024-AA5..To: <<a href="mailto:sip%3A3516380070@192.168.200.10">sip:3516380070@192.168.200.10</a>>;tag=329cfeaa6ded039da25ff8cbb8668bd2.941d..Call-ID: 98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40..CS</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> eq: 101 INVITE..Proxy-Authenticate: Digest realm="metrotel", nonce="4a2fb81ca554f5ff9ab57d058348ca3a20e35893"..Server: OpenSER (1.2.2-notls (i386/linux)</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> )..Content-Length: 0....</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.200.40:5060">192.168.200.40:5060</a> -> <a href="http://192.168.200.10:5060">192.168.200.10:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> ACK <a href="http://sip:3516380070@192.168.200.10:5060">sip:3516380070@192.168.200.10:5060</a> SIP/2.0..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK60D741D2C..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> =D3E4E024-AA5..To: <<a href="mailto:sip%3A3516380070@192.168.200.10">sip:3516380070@192.168.200.10</a>>;tag=329cfeaa6ded039da25ff8cbb8668bd2.941d..Date: Wed, 10 Jun 2009 13:36:54 GMT..Call-ID: 98989BF6-54F</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> A11DE-818396C1-6209D7B9@192.168.200.40..Max-Forwards: 70..CSeq: 101 ACK..Content-Length: 0....</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.200.40:50112">192.168.200.40:50112</a> -> <a href="http://192.168.200.10:5060">192.168.200.10:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> INVITE <a href="http://sip:3516380070@192.168.200.10:5060">sip:3516380070@192.168.200.10:5060</a> SIP/2.0..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK60D751268..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> tag=D3E4E024-AA5..To: <<a href="mailto:sip%3A3516380070@192.168.200.10">sip:3516380070@192.168.200.10</a>>..Date: Wed, 10 Jun 2009 13:36:54 GMT..Call-ID: <a href="mailto:98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40">98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40</a>.</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> .Supported: 100rel,timer,replaces..Min-SE: 1800..Cisco-Guid: 2560098254-1425674718-2728198171-1395155982..User-Agent: Cisco-SIPGateway/IOS-12.x..Allow:</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO, UPDATE, REGISTER..CSeq: 102 INVITE..Max-Forwards: 70..Remote-Party-ID:</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;party=calling;screen=yes;privacy=off..Timestamp: 1244641014..Contact: <<a href="http://sip:1143314808@192.168.200.40:5060">sip:1143314808@192.168.200.40:5060</a>>..Expires: 18</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 0..Allow-Events: telephone-event..Proxy-Authorization: Digest username="as5350",realm="metrotel",uri="<a href="http://sip:3516380070@192.168.200.10:5060">sip:3516380070@192.168.200.10:5060</a>",response="6a51</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> a32e9f21dadc67db011ab81af3f6",nonce="4a2fb81ca554f5ff9ab57d058348ca3a20e35893",algorithm=md5..Content-Type: application/sdp..Content-Length: 302....v=0.</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> .o=CiscoSystemsSIP-GW-UserAgent 2319 3741 IN IP4 192.168.200.40..s=SIP Call..c=IN IP4 192.168.200.40..t=0 0..m=audio 17416 RTP/AVP 18 8 100..c=IN IP4 19</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 2.168.200.40..a=rtpmap:18 G729/8000..a=fmtp:18 annexb=no..a=rtpmap:8 PCMA/8000..a=rtpmap:100 X-NSE/8000..a=fmtp:100 192-194..a=direction:passive..</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.200.10:5060">192.168.200.10:5060</a> -> <a href="http://192.168.200.40:5060">192.168.200.40:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> SIP/2.0 100 Giving a try..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK60D751268..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D3E4E024-AA5..To: <si</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> <a href="mailto:p%3A3516380070@192.168.200.10">p:3516380070@192.168.200.10</a>>..Call-ID: 98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40..CSeq: 102 INVITE..Server: OpenSER (1.2.2-notls (i386/linux)).</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> .Content-Length: 0....</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.200.10:5060">192.168.200.10:5060</a> -> <a href="http://192.168.216.4:5060">192.168.216.4:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> INVITE sip:3516380070@192.168.216.4:5060;transport=udp SIP/2.0..Record-Route: <sip:192.168.200.10;lr=on;ftag=D3E4E024-AA5>..Via: SIP/2.0/UDP 192.168.200</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> .10;branch=z9hG4bK831b.861b9286.0..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK60D751268..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D3E4E024-AA5</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> ..To: <<a href="mailto:sip%3A3516380070@192.168.200.10">sip:3516380070@192.168.200.10</a>>..Date: Wed, 10 Jun 2009 13:36:54 GMT..Call-ID: 98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40..Supported: 100r</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> el,timer,replaces..Min-SE: 1800..Cisco-Guid: 2560098254-1425674718-2728198171-1395155982..User-Agent: Cisco-SIPGateway/IOS-12.x..Allow: INVITE, OPTIONS</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> , BYE, CANCEL, ACK, PRACK, COMET, REFER, SUBSCRIBE, NOTIFY, INFO, UPDATE, REGISTER..CSeq: 102 INVITE..Max-Forwards: 70..Remote-Party-ID: <sip:1143314808</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> @<a href="http://192.168.200.40">192.168.200.40</a>>;party=calling;screen=yes;privacy=off..Timestamp: 1244641014..Contact: <<a href="http://sip:1143314808@192.168.200.40:5060">sip:1143314808@192.168.200.40:5060</a>>..Expires: 180..Allow-Events:</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> telephone-event..Content-Type: application/sdp..Content-Length: 302..P-hint: outbound....v=0..o=CiscoSystemsSIP-GW-UserAgent 2319 3741 IN IP4 192.168.2</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 00.40..s=SIP Call..c=IN IP4 192.168.200.40..t=0 0..m=audio 17416 RTP/AVP 18 8 100..c=IN IP4 192.168.200.40..a=rtpmap:18 G729/8000..a=fmtp:18 annexb=no..</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> a=rtpmap:8 PCMA/8000..a=rtpmap:100 X-NSE/8000..a=fmtp:100 192-194..a=direction:passive..</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.216.4:5060">192.168.216.4:5060</a> -> <a href="http://192.168.200.10:5060">192.168.200.10:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> SIP/2.0 100 Trying..Call-ID:98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40..CSeq:102 INVITE..From:<<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D3E4E024-AA5..</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> To:<<a href="mailto:sip%3A3516380070@192.168.200.10">sip:3516380070@192.168.200.10</a>>..Via:SIP/2.0/UDP 192.168.200.10;branch=z9hG4bK831b.861b9286.0..Via:SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK60D7</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 51268..Content-Length:0....</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.216.4:5060">192.168.216.4:5060</a> -> <a href="http://192.168.200.10:5060">192.168.200.10:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> SIP/2.0 180 Ringing..Require:100rel..Supported:100rel..Record-Route:<sip:192.168.200.10;lr=on;ftag=D3E4E024-AA5>..Via:SIP/2.0/UDP 192.168.200.10;branch=</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> z9hG4bK831b.861b9286.0..Via:SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK60D751268..Call-ID:98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40..CSeq:10</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 2 INVITE..From:<<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D3E4E024-AA5..To:<<a href="mailto:sip%3A3516380070@192.168.200.10">sip:3516380070@192.168.200.10</a>>;tag=5358336B534F54210582B350..RSeq:900097065..Contac</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> t:<<a href="http://sip:3516380070@192.168.200.10:5060">sip:3516380070@192.168.200.10:5060</a>>..Content-Length:0....</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.200.10:5060">192.168.200.10:5060</a> -> <a href="http://192.168.200.40:5060">192.168.200.40:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> SIP/2.0 180 Ringing..Require:100rel..Supported:100rel..Record-Route:<sip:192.168.200.10;lr=on;ftag=D3E4E024-AA5>..Via:SIP/2.0/UDP 192.168.200.40:5060;br</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> anch=z9hG4bK60D751268..Call-ID:98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40..CSeq:102 INVITE..From:<<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D3E4E024-AA</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 5..To:<<a href="mailto:sip%3A3516380070@192.168.200.10">sip:3516380070@192.168.200.10</a>>;tag=5358336B534F54210582B350..RSeq:900097065..Contact:<<a href="http://sip:3516380070@192.168.200.10:5060">sip:3516380070@192.168.200.10:5060</a>>..Content-Length:0....</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.200.40:50112">192.168.200.40:50112</a> -> <a href="http://192.168.200.10:5060">192.168.200.10:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> PRACK <a href="http://sip:3516380070@192.168.200.10:5060">sip:3516380070@192.168.200.10:5060</a> SIP/2.0..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK60D77201C..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;t</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> ag=D3E4E024-AA5..To: <<a href="mailto:sip%3A3516380070@192.168.200.10">sip:3516380070@192.168.200.10</a>>;tag=5358336B534F54210582B350..Date: Wed, 10 Jun 2009 13:36:54 GMT..Call-ID: 98989BF6-54FA11DE-81839</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 6C1-6209D7B9@192.168.200.40..CSeq: 103 PRACK..RAck: 900097065 102 INVITE..Route: <sip:192.168.200.10;lr=on;ftag=D3E4E024-AA5>..Proxy-Authorization: Dige</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> st username="as5350",realm="metrotel",uri="<a href="http://sip:3516380070@192.168.200.10:5060">sip:3516380070@192.168.200.10:5060</a>",response="df4f26f89f7a4eebb397266d31e71b38",nonce="4a2fb81ca554f5ff9ab57d</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 058348ca3a20e35893",algorithm=md5..Max-Forwards: 70..Content-Length: 0....</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.200.10:5060">192.168.200.10:5060</a> -> <a href="http://192.168.216.4:5060">192.168.216.4:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> PRACK sip:3516380070@192.168.216.4:5060;transport=udp SIP/2.0..Record-Route: <sip:192.168.200.10;lr=on;ftag=D3E4E024-AA5>..Via: SIP/2.0/UDP 192.168.200.</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 10;branch=z9hG4bK931b.4afe556.0..Via: SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK60D77201C..From: <<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D3E4E024-AA5..</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> To: <<a href="mailto:sip%3A3516380070@192.168.200.10">sip:3516380070@192.168.200.10</a>>;tag=5358336B534F54210582B350..Date: Wed, 10 Jun 2009 13:36:54 GMT..Call-ID: 98989BF6-54FA11DE-818396C1-6209D7B9@192.</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 168.200.40..CSeq: 103 PRACK..RAck: 900097065 102 INVITE..Proxy-Authorization: Digest username="as5350",realm="metrotel",uri="<a href="mailto:sip%3A3516380070@192.168.200.">sip:3516380070@192.168.200.</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 10:5060",response="df4f26f89f7a4eebb397266d31e71b38",nonce="4a2fb81ca554f5ff9ab57d058348ca3a20e35893",algorithm=md5..Max-Forwards: 70..Content-Length: 0</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> ..P-hint: rr-enforced....</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.216.4:5060">192.168.216.4:5060</a> -> <a href="http://192.168.200.10:5060">192.168.200.10:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> SIP/2.0 200 OK..Call-ID:98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40..CSeq:103 PRACK..From:<<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D3E4E024-AA5..To:<s</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> <a href="mailto:ip%3A3516380070@192.168.200.10">ip:3516380070@192.168.200.10</a>>;tag=5358336B534F54210582B350..Via:SIP/2.0/UDP 192.168.200.10;branch=z9hG4bK931b.4afe556.0..Via:SIP/2.0/UDP <a href="http://192.168.200.40">192.168.200.40</a>:</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> 5060;branch=z9hG4bK60D77201C..Content-Length:0....</span><br style="font-family: trebuchet ms,sans-serif;"><span style="font-family: trebuchet ms,sans-serif;">#</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;">U <a href="http://192.168.200.10:5060">192.168.200.10:5060</a> -> <a href="http://192.168.200.40:5060">192.168.200.40:5060</a></span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> SIP/2.0 200 OK..Call-ID:98989BF6-54FA11DE-818396C1-6209D7B9@192.168.200.40..CSeq:103 PRACK..From:<<a href="mailto:sip%3A1143314808@192.168.200.40">sip:1143314808@192.168.200.40</a>>;tag=D3E4E024-AA5..To:<s</span><br style="font-family: trebuchet ms,sans-serif;">
<span style="font-family: trebuchet ms,sans-serif;"> <a href="mailto:ip%3A3516380070@192.168.200.10">ip:3516380070@192.168.200.10</a>>;tag=5358336B534F54210582B350..Via:SIP/2.0/UDP 192.168.200.40:5060;branch=z9hG4bK60D77201C..Content-Length:0....</span><br style="font-family: trebuchet ms,sans-serif;">
<br>