<div dir="ltr"><div><div><div><div>Hi Alex<br><br></div>Thanks for you reply<br><br><br></div>these are the sip traces the good trace and the bad trace, in the bad trace, kamailio doesn't send BYE to endpoint<br><br></div><div>all users are nated<br><br></div><b>BAD trace:</b><br><br>U 2015/12/10 17:18:55.492978 <a href="http://24.216.216.133:8080">24.216.216.133:8080</a> -> <a href="http://220.42.4.1:5060">220.42.4.1:5060</a>

<br>INVITE sip:584241055167@220.42.4.1:5060;transport=udp SIP/2.0

<br>Record-Route: <sip:24.216.216.133:8080;lr=on;ftag=058c3b28;did=638.f362;nat=yes>

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bKa68e.a8dc281ae158acb086546b7abb791321.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7MRzDUpwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkW-AQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.VkXspmYeRQfwpmfahkgMRzftZFYcZFXuRmZzDX**

<br>Max-Forwards: 69

<br>Contact: <sip:10.20.82.230;line=sr-ZieapegMpjX8RjN8pmGwDmeBDmG8VQNipC1aVQNaRz7MRzDUpi9nlk9zbmfaDC1wRC18DjTKDmBwLQgwDz9yDX**>;+sip.instance="<urn:uuid:421AA90E-079F-A326-B649-4F812AD13E79>"

<br>To: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>CSeq: 2 INVITE

<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, REGISTER, SUBSCRIBE, INFO

<br>Content-Type: application/sdp

<br>Supported: replaces

<br>User-Agent: ChasquiMobile for Android

<br>Content-Length: 304

<br> <br>v=0

<br>o=- 1449789527 1 IN IP4 208.101.36.104

<br>s=<a href="http://portsip.com">portsip.com</a>

<br>c=IN IP4 208.101.36.104

<br>t=0 0

<br>m=audio 46210 RTP/AVP 18 105 101

<br>a=rtpmap:18 G729/8000

<br>a=fmtp:18 annexb=no

<br>a=rtpmap:105 opus/48000

<br>a=rtpmap:101 telephone-event/8000

<br>a=fmtp:101 0-16

<br>a=ptime:20

<br>a=maxptime:20

<br>a=sendrecv

<br>a=nortpproxy:yes

<br> <br>U 2015/12/10 17:18:55.535196 <a href="http://220.42.4.1:5060">220.42.4.1:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>SIP/2.0 100 Trying

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bKa68e.a8dc281ae158acb086546b7abb791321.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7MRzDUpwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkW-AQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.VkXspmYeRQfwpmfahkgMRzftZFYcZFXuRmZzDX**

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

<br>To: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>Contact: <sip:<a href="http://220.42.4.1:5060">220.42.4.1:5060</a>>

<br>CSeq: 2 INVITE

<br>Server: sbc_5

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 17:18:59.162776 <a href="http://220.42.4.1:5060">220.42.4.1:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>SIP/2.0 183 Session Progress

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bKa68e.a8dc281ae158acb086546b7abb791321.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7MRzDUpwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkW-AQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.VkXspmYeRQfwpmfahkgMRzftZFYcZFXuRmZzDX**

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

<br>To: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>;tag=sbcsipuas_1_C14472_20151210181725542_b12sb11

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>Contact: <sip:<a href="http://220.42.4.1:5060">220.42.4.1:5060</a>>

<br>CSeq: 2 INVITE

<br>Server: sbc_5

<br>Content-Type: application/sdp

<br>Content-Length: 233

<br> <br>v=0

<br>o=SBCSIPUAS 1061672778 1 IN IP4 206.20.3.31

<br>s=SBCSIPUAS SIP STACK v1.0

<br>c=IN IP4 206.20.3.31

<br>t=0 0

<br>m=audio 22954 RTP/AVP 18 101

<br>a=rtpmap:18 G729/8000

<br>a=rtpmap:101 telephone-event/8000

<br>a=fmtp:101 0-15

<br>a=fmtp:18 annexb=no

<br> <br>U 2015/12/10 17:19:02.762625 <a href="http://220.42.4.1:5060">220.42.4.1:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>SIP/2.0 200 OK

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bKa68e.a8dc281ae158acb086546b7abb791321.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7MRzDUpwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkW-AQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.VkXspmYeRQfwpmfahkgMRzftZFYcZFXuRmZzDX**

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

<br>To: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>;tag=sbcsipuas_1_C14472_20151210181725542_b12sb11

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>Record-Route: <sip:24.216.216.133:8080;lr=on;ftag=058c3b28;did=638.f362;nat=yes>

<br>Contact: <sip:<a href="http://220.42.4.1:5060">220.42.4.1:5060</a>>

<br>CSeq: 2 INVITE

<br>Allow: ACK,BYE,CANCEL,INVITE,OPTIONS,NOTIFY,INFO

<br>Server: sbc_5

<br>Content-Type: application/sdp

<br>Content-Length: 233

<br> <br>v=0

<br>o=SBCSIPUAS 1061672778 1 IN IP4 206.20.3.31

<br>s=SBCSIPUAS SIP STACK v1.0

<br>c=IN IP4 206.20.3.31

<br>t=0 0

<br>m=audio 22954 RTP/AVP 18 101

<br>a=rtpmap:18 G729/8000

<br>a=rtpmap:101 telephone-event/8000

<br>a=fmtp:101 0-15

<br>a=fmtp:18 annexb=no

<br> <br>U 2015/12/10 17:19:02.933917 <a href="http://24.216.216.133:8080">24.216.216.133:8080</a> -> <a href="http://220.42.4.1:5060">220.42.4.1:5060</a>

<br>ACK sip:220.42.4.1:5060;transport=udp SIP/2.0

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bKa68e.b318090c34de29f93c1a85d490383a91.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7MRzDUpwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkWQAQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.Vk9dpjYQDmDaDzYoRHfiRQBtZFYcZFXuRmZzDX**

<br>Max-Forwards: 69

<br>Contact: <sip:10.20.82.230;line=sr-ZieapegMpjX8RjN8pmGwDmeBDmG8VQNipC1aVQNaRz7MRzDUpi9nlk9zbmfaDC1wRC18DjTKDmBwLQgwDz9yDX**>;+sip.instance="<urn:uuid:421AA90E-079F-A326-B649-4F812AD13E79>"

<br>To: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>;tag=sbcsipuas_1_C14472_20151210181725542_b12sb11

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>CSeq: 2 ACK

<br>User-Agent: ChasquiMobile for Android

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 17:19:08.492375 <a href="http://220.42.4.1:5060">220.42.4.1:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>BYE sip:<a href="http://10.20.82.230:8080">10.20.82.230:8080</a> SIP/2.0

<br>Via: SIP/2.0/UDP 220.42.4.1:5060;branch=z9hG4bK-1061672778-1

<br>To: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

<br>From: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>;tag=sbcsipuas_1_C14472_20151210181725542_b12sb11

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>Route: <sip:24.216.216.133:8080;lr=on;ftag=058c3b28;did=638.f362;nat=yes>

<br>CSeq: 3 BYE

<br>Max-Forwards: 70

<br>Server: sbc_5

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 17:19:09.495287 <a href="http://220.42.4.1:5060">220.42.4.1:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>BYE sip:<a href="http://10.20.82.230:8080">10.20.82.230:8080</a> SIP/2.0

<br>Via: SIP/2.0/UDP 220.42.4.1:5060;branch=z9hG4bK-1061672778-1

<br>To: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

<br>From: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>;tag=sbcsipuas_1_C14472_20151210181725542_b12sb11

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>Route: <sip:24.216.216.133:8080;lr=on;ftag=058c3b28;did=638.f362;nat=yes>

<br>CSeq: 3 BYE

<br>Max-Forwards: 70

<br>Server: sbc_5

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 17:19:10.496112 <a href="http://220.42.4.1:5060">220.42.4.1:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>BYE sip:<a href="http://10.20.82.230:8080">10.20.82.230:8080</a> SIP/2.0

<br>Via: SIP/2.0/UDP 220.42.4.1:5060;branch=z9hG4bK-1061672778-1

<br>To: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

<br>From: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>;tag=sbcsipuas_1_C14472_20151210181725542_b12sb11

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>Route: <sip:24.216.216.133:8080;lr=on;ftag=058c3b28;did=638.f362;nat=yes>

<br>CSeq: 3 BYE

<br>Max-Forwards: 70

<br>Server: sbc_5

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 17:19:12.497416 <a href="http://220.42.4.1:5060">220.42.4.1:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>BYE sip:<a href="http://10.20.82.230:8080">10.20.82.230:8080</a> SIP/2.0

<br>Via: SIP/2.0/UDP 220.42.4.1:5060;branch=z9hG4bK-1061672778-1

<br>To: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

<br>From: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>;tag=sbcsipuas_1_C14472_20151210181725542_b12sb11

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>Route: <sip:24.216.216.133:8080;lr=on;ftag=058c3b28;did=638.f362;nat=yes>

<br>CSeq: 3 BYE

<br>Max-Forwards: 70

<br>Server: sbc_5

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 17:19:16.501049 <a href="http://220.42.4.1:5060">220.42.4.1:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>BYE sip:<a href="http://10.20.82.230:8080">10.20.82.230:8080</a> SIP/2.0

<br>Via: SIP/2.0/UDP 220.42.4.1:5060;branch=z9hG4bK-1061672778-1

<br>To: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

<br>From: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>;tag=sbcsipuas_1_C14472_20151210181725542_b12sb11

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>Route: <sip:24.216.216.133:8080;lr=on;ftag=058c3b28;did=638.f362;nat=yes>

<br>CSeq: 3 BYE

<br>Max-Forwards: 70

<br>Server: sbc_5

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 17:19:40.477970 <a href="http://24.216.216.133:8080">24.216.216.133:8080</a> -> <a href="http://220.42.4.1:5060">220.42.4.1:5060</a>

<br>SIP/2.0 408 Request Timeout

<br>Via: SIP/2.0/UDP 220.42.4.1:5060;branch=z9hG4bK-1061672778-1;rport=5060

<br>To: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

<br>From: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>;tag=sbcsipuas_1_C14472_20151210181725542_b12sb11

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>CSeq: 3 BYE

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 17:20:08.469539 <a href="http://24.216.216.133:8080">24.216.216.133:8080</a> -> <a href="http://220.42.4.1:5060">220.42.4.1:5060</a>

<br>BYE sip:<a href="http://220.42.4.1:5060">220.42.4.1:5060</a> SIP/2.0

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bKb68e.3bfbe6804dbbbfc714c5666088fd6d1d.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7MRzDUpwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkWQAQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.Vm9dpjXspjAQDzYSDQZMRHTtZFYcZFXuRmZzDX**

<br>Max-Forwards: 69

<br>Contact: <sip:10.20.82.230;line=sr-ZieapegMpjX8RjN8pmGwDmeBDmG8VQNipC1aVQNaRz7MRzDUpi9nlk9zbmfaDC1wRC18DjTKDmBwLQgwDz9yDX**>;+sip.instance="<urn:uuid:421AA90E-079F-A326-B649-4F812AD13E79>"

<br>To: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>;tag=sbcsipuas_1_C14472_20151210181725542_b12sb11

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>CSeq: 3 BYE

<br>Proxy-Authorization: Digest username="U584241299719",realm="24.216.216.133",nonce="VmoImlZqCF79EL8FYxeVrcPazUfsmGRTTUVUDIA=",uri="sip:10.20.82.230;line=sr-ZieapQfURd1MD81JVQN4RmBiDB**",response="7a4808f19ee294b973ec16a900801c41",algorithm=MD5

<br>User-Agent: ChasquiMobile for Android

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 17:20:08.511283 <a href="http://220.42.4.1:5060">220.42.4.1:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>SIP/2.0 481 Call/Transaction Does Not Exist

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bKb68e.3bfbe6804dbbbfc714c5666088fd6d1d.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7MRzDUpwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkWQAQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.Vm9dpjXspjAQDzYSDQZMRHTtZFYcZFXuRmZzDX**

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=058c3b28

<br>To: <<a href="mailto:sip%3A584241055167@24.216.216.133">sip:584241055167@24.216.216.133</a>>;tag=sbcsipuas_1_C14472_20151210181725542_b12sb11

Call-ID: 0meUSw2iwHBB7gN16wzNSA..

<br>CSeq: 3 BYE

<br>Server: sbc_5

<br>Content-Length: 0

<br> <br><br></div><b>GOOD trace </b><br><br>U 2015/12/10 16:56:38.110929 <a href="http://24.216.216.133:8080">24.216.216.133:8080</a> -> <a href="http://69.130.18.129:5060">69.130.18.129:5060</a>

<br>INVITE sip:584169236298@69.130.18.129:5060;transport=udp SIP/2.0

<br>Record-Route: <sip:24.216.216.133:8080;lr=on;ftag=8c238d52;did=258.7fe2;nat=yes>

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bK6884.372a2595cb8c5c891ee983f5013180cb.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7sDjB1pwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkW-AQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.Vk6epmG8RmDihHhopjDzRmBtZFYcZFXupmBapB**

<br>Max-Forwards: 69

<br>Contact: <sip:10.20.82.230;line=sr-ZieapegMpjX8RjN8pmGwDmeBDmG8VQNipC1aVQNaRz7sDjB1pi9nlk9zbmfaDC1wRC18DjTKDmBwLQGaDjSyDX**>;+sip.instance="<urn:uuid:421AA90E-079F-A326-B649-4F812AD13E79>"

<br>To: <<a href="mailto:sip%3A584169236298@24.216.216.133">sip:584169236298@24.216.216.133</a>>

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=8c238d52

Call-ID: zVn-CxoHdb5lC8CtcNhjJg..

<br>CSeq: 2 INVITE

<br>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, REGISTER, SUBSCRIBE, INFO

<br>Content-Type: application/sdp

<br>Supported: replaces

<br>User-Agent: ChasquiMobile for Android

<br>Content-Length: 304

<br> <br>v=0

<br>o=- 1449788189 1 IN IP4 208.101.36.104

<br>s=<a href="http://portsip.com">portsip.com</a>

<br>c=IN IP4 208.101.36.104

<br>t=0 0

<br>m=audio 25418 RTP/AVP 18 105 101

<br>a=rtpmap:18 G729/8000

<br>a=fmtp:18 annexb=no

<br>a=rtpmap:105 opus/48000

<br>a=rtpmap:101 telephone-event/8000

<br>a=fmtp:101 0-16

<br>a=ptime:20

<br>a=maxptime:20

<br>a=sendrecv

<br>a=nortpproxy:yes

<br> <br>U 2015/12/10 16:56:38.158872 <a href="http://69.130.18.129:5060">69.130.18.129:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>SIP/2.0 100 trying -- your call is important to us

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bK6884.372a2595cb8c5c891ee983f5013180cb.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7sDjB1pwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkW-AQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.Vk6epmG8RmDihHhopjDzRmBtZFYcZFXupmBapB**

<br>To: <<a href="mailto:sip%3A584169236298@24.216.216.133">sip:584169236298@24.216.216.133</a>>

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=8c238d52

Call-ID: zVn-CxoHdb5lC8CtcNhjJg..

<br>CSeq: 2 INVITE

<br>Server: BTS Mia Proxy

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 16:56:39.258933 <a href="http://69.130.18.129:5060">69.130.18.129:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>SIP/2.0 183 Session Progress

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bK6884.372a2595cb8c5c891ee983f5013180cb.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7sDjB1pwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkW-AQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.Vk6epmG8RmDihHhopjDzRmBtZFYcZFXupmBapB**

<br>Record-Route: <sip:69.130.18.129;lr=on;ftag=8c238d52;did=258.1837>

<br>Record-Route: <sip:24.216.216.133:8080;lr=on;ftag=8c238d52;did=258.7fe2;nat=yes>

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=8c238d52

<br>To: <<a href="mailto:sip%3A584169236298@24.216.216.133">sip:584169236298@24.216.216.133</a>>;tag=5UZXQvye86yvD

Call-ID: zVn-CxoHdb5lC8CtcNhjJg..

<br>CSeq: 2 INVITE

<br>Contact: <sip:584169236298@79.170.68.148:5060;transport=udp>

<br>User-Agent: BTS mia-minos-3

<br>Accept: application/sdp

<br>Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY

<br>Supported: timer, path, replaces

<br>Allow-Events: talk, hold, conference, refer

<br>Content-Type: application/sdp

<br>Content-Disposition: session

<br>Content-Length:229

<br> <br>v=0

<br>o=nsc 1449826615 1449826616 IN IP4 79.170.71.55

<br>s=nsc

<br>c=IN IP4 79.170.71.55

<br>t=0 0

<br>m=audio 38506 RTP/AVP 18 101

<br>a=rtpmap:18 G729/8000

<br>a=fmtp:18 annexb=no

<br>a=rtpmap:101 telephone-event/8000

<br>a=fmtp:101 0-16

<br>a=ptime:20

<br> <br>U 2015/12/10 16:56:46.650815 <a href="http://69.130.18.129:5060">69.130.18.129:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>SIP/2.0 200 OK

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bK6884.372a2595cb8c5c891ee983f5013180cb.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7sDjB1pwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkW-AQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.Vk6epmG8RmDihHhopjDzRmBtZFYcZFXupmBapB**

<br>Record-Route: <sip:69.130.18.129;lr=on;ftag=8c238d52;did=258.1837>

<br>Record-Route: <sip:24.216.216.133:8080;lr=on;ftag=8c238d52;did=258.7fe2;nat=yes>

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=8c238d52

<br>To: <<a href="mailto:sip%3A584169236298@24.216.216.133">sip:584169236298@24.216.216.133</a>>;tag=5UZXQvye86yvD

Call-ID: zVn-CxoHdb5lC8CtcNhjJg..

<br>CSeq: 2 INVITE

<br>Contact: <sip:584169236298@79.170.68.148:5060;transport=udp>

<br>User-Agent: BTS mia-minos-3

<br>Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY

<br>Supported: timer, path, replaces

<br>Allow-Events: talk, hold, conference, refer

<br>Content-Type: application/sdp

<br>Content-Disposition: session

<br>Content-Length: 230

<br> <br>v=0

<br>o=nsc 1449826615 1449826616 IN IP4 79.170.71.154

<br>s=nsc

<br>c=IN IP4 79.170.71.55

<br>t=0 0

<br>m=audio 38506 RTP/AVP 18 101

<br>a=rtpmap:18 G729/8000

<br>a=fmtp:18 annexb=no

<br>a=rtpmap:101 telephone-event/8000

<br>a=fmtp:101 0-16

<br>a=ptime:20

<br> <br>U 2015/12/10 16:56:46.819585 <a href="http://24.216.216.133:8080">24.216.216.133:8080</a> -> <a href="http://69.130.18.129:5060">69.130.18.129:5060</a>

<br>ACK sip:79.170.68.148:5060;transport=udp SIP/2.0

<br>Via: SIP/2.0/UDP 24.216.216.133:8080;branch=z9hG4bK6884.47e5cb804fd4b55d4e4910d648804728.0

<br>Via: SIP/2.0/UDP 10.20.82.230;branch=z9hG4bKsr-gJeXVzfKDCu6W9BODmG8VQNipC1aVQNaRz7sDjB1pwqeTi6-Ao6GbmfaDC1wRC18DjTKDmBwpMWfbkWQAQ.dZo9KTiOuEQe7WzWdv8JMDQX8pjZ.DvJ.VmDiTzSehmZsDQhdTzqdRzgtZFYcZFXupmBapB**

<br>Max-Forwards: 69

<br>Route: <sip:69.130.18.129;lr=on;ftag=8c238d52;did=258.1837>

<br>Contact: <sip:10.20.82.230;line=sr-ZieapegMpjX8RjN8pmGwDmeBDmG8VQNipC1aVQNaRz7sDjB1pi9nlk9zbmfaDC1wRC18DjTKDmBwLQGaDjSyDX**>;+sip.instance="<urn:uuid:421AA90E-079F-A326-B649-4F812AD13E79>"

<br>To: <<a href="mailto:sip%3A584169236298@24.216.216.133">sip:584169236298@24.216.216.133</a>>;tag=5UZXQvye86yvD

<br>From: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=8c238d52

Call-ID: zVn-CxoHdb5lC8CtcNhjJg..

<br>CSeq: 2 ACK

<br>User-Agent: ChasquiMobile for Android

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 16:56:58.230885 <a href="http://69.130.18.129:5060">69.130.18.129:5060</a> -> <a href="http://24.216.216.133:8080">24.216.216.133:8080</a>

<br>BYE sip:10.20.82.230;line=sr-ZieapegMpjX8RjN8pmGwDmeBDmG8VQNipC1aVQNaRz7sDjB1pi9nlk9zbmfaDC1wRC18DjTKDmBwLQGaDjSyDX** SIP/2.0

<br>Via: SIP/2.0/UDP 69.130.18.129;branch=z9hG4bKe73f.f2cb15533ca61e80f00882840c4d4d42.0

<br>Via: SIP/2.0/UDP 79.170.68.148;received=79.170.68.148;rport=5060;branch=z9hG4bKU2538rN94Z9ZS

<br>Route: <sip:24.216.216.133:8080;lr=on;ftag=8c238d52;did=258.7fe2;nat=yes>

<br>Max-Forwards: 69

<br>From: <<a href="mailto:sip%3A584169236298@24.216.216.133">sip:584169236298@24.216.216.133</a>>;tag=5UZXQvye86yvD

<br>To: "<sip:=582127101002@" <<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=8c238d52

Call-ID: zVn-CxoHdb5lC8CtcNhjJg..

<br>CSeq: 84558000 BYE

<br>User-Agent: BTS mia-minos-3

<br>Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY

<br>Supported: timer, path, replaces

<br>Reason: Q.850;cause=16;text="NORMAL_CLEARING"

<br>Content-Length: 0

<br> <br> <br>U 2015/12/10 16:56:58.387215 <a href="http://24.216.216.133:8080">24.216.216.133:8080</a> -> <a href="http://69.130.18.129:5060">69.130.18.129:5060</a>

<br>SIP/2.0 200 OK

<br>Via: SIP/2.0/UDP 69.130.18.129;rport=5060;branch=z9hG4bKe73f.f2cb15533ca61e80f00882840c4d4d42.0

<br>Via: SIP/2.0/UDP 79.170.68.148;received=79.170.68.148;rport=5060;branch=z9hG4bKU2538rN94Z9ZS

<br>Contact: <sip:10.20.82.230;line=sr-ZieapegMpjX8RjN8pmGwDmeBDmG8VQNipC1aVQNaRz7sDjB1>;+sip.instance="<urn:uuid:421AA90E-079F-A326-B649-4F812AD13E79>"

<br>To: "<sip:=582127101002@"<<a href="mailto:sip%3AU584241299719@24.216.216.133">sip:U584241299719@24.216.216.133</a>>;tag=8c238d52

<br>From: <<a href="mailto:sip%3A584169236298@24.216.216.133">sip:584169236298@24.216.216.133</a>>;tag=5UZXQvye86yvD

Call-ID: zVn-CxoHdb5lC8CtcNhjJg..

<br>CSeq: 84558000 BYE

<br>User-Agent: ChasquiMobile for Android

<br>Content-Length: 0

<br> <br><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Dec 10, 2015 at 6:35 PM, Alex Balashov <span dir="ltr"><<a href="mailto:abalashov@evaristesys.com" target="_blank">abalashov@evaristesys.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Rene,<span class=""><br>

<br>

On 12/10/2015 06:01 PM, Rene Montilva wrote:<br>

<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

What could be the scenario, when hangup a call and kamailio show empty<br>

the $du var and can't send BYE to endpoint<br>

</blockquote>

<br></span>

$du is ordinarily only set when the network and transport-layer destination of the request is different to where consuming the domain part of the request URI ($ru) would normally take it.<br>

<br>

What's $ru say for the BYE, and is it reachable? Does it match the Contact of the dialog party to which it's going? Do other end-to-end sequential requests work, e.g. end-to-end ACK for 2xx INVITE reply?<br>

<br>

-- <br>

Alex Balashov | Principal | Evariste Systems LLC<br>

303 Perimeter Center North, Suite 300<br>

Atlanta, GA 30346<br>

United States<br>

<br>

Tel: <a href="tel:%2B1-800-250-5920" value="+18002505920" target="_blank">+1-800-250-5920</a> (toll-free) / <a href="tel:%2B1-678-954-0671" value="+16789540671" target="_blank">+1-678-954-0671</a> (direct)<br>

Web: <a href="http://www.evaristesys.com/" rel="noreferrer" target="_blank">http://www.evaristesys.com/</a>, <a href="http://www.csrpswitch.com/" rel="noreferrer" target="_blank">http://www.csrpswitch.com/</a><br>

<br>

_______________________________________________<br>

SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list<br>

<a href="mailto:sr-users@lists.sip-router.org" target="_blank">sr-users@lists.sip-router.org</a><br>

<a href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users" rel="noreferrer" target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a><br>

</blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><span><font color="#888888"><div style="font-size:12.8000001907349px"><span style="font-size:12.8000001907349px">Ing. Rene Montilva</span></div><div style="font-size:12.8000001907349px"><span style="font-size:12.8000001907349px"><b>FOSS Developer and VoIP Engineer.</b></span></div><div style="font-size:12.8000001907349px"><span style="font-size:12.8000001907349px"><br></span></div></font></span></div></div></div></div>

</div>