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Summary:ASTERISK-17723: Transfer is being declined when global allowtransfer=no regardless of peer settings
Reporter:Grigoriy Puzankin (boroda)Labels:
Date Opened:2011-04-20 01:56:56Date Closed:2011-06-07 14:05:16
Priority:MinorRegression?No
Status:Closed/CompleteComponents:Channels/chan_sip/Transfers
Versions:1.8.3 Frequency of
Occurrence
Related
Issues:
is the original version of this clone:ASTERISK-19856 Transfer is being denied when global allowtransfer=no, ignoring peer setting
Environment:Attachments:
Description:If allowtransfer=no in global section transfer is being declined even when allowtransfer=yes on peer basis.


****** ADDITIONAL INFORMATION ******

However, "sip show peer xxx" shows that transfer mode is open.

Not sure if it is intended behavior, but in Asterisk 1.6 allowtransfer could be overridden in peer settings forth and back (yes to no, and no to yes).
Comments:By: Paul Belanger (pabelanger) 2011-04-20 15:00:28

We require a complete debug log to help triage the issue.

This document will provide instructions on how to collect debugging logs from an Asterisk machine for the purpose of helping bug marshals troubleshoot an issue:

https://wiki.asterisk.org/wiki/display/AST/Collecting+Debug+Information

By: Leif Madsen (lmadsen) 2011-05-10 15:05:11

Suspended. No response from reporter.
By: Jacek (jacek) 2012-03-24 15:51:42.214-0500

I would like to take over this issue and provide required details. The following applies to Asterisk 10.1.3.

h3. Setup

There are two phones:

phone (192.168.1.1) at extension 500
computer (192.168.1.2) at extension 501
192.168.1.3 is the Asterisk server

At extension 664 there is simple answering machine doing Answer() and MusicOnHold()

h3. Configuration

{code:title=sip.conf}
[general]
context=default
allowtransfer=no
/.../

[phone]
type=friend
defaultuser=phone
/.../
allowtransfer=yes

[computer]
type=friend
defaultuser=computer
/.../
allowtransfer=yes
{code}

{code:title=extensions.conf}
[default]
exten => 500,1,Dial(SIP/phone,,kt)
exten => 500,2,Hangup()
exten => 501,1,Dial(SIP/computer,,kt)
exten => 501,2,Hangup()
exten => 664,1,Answer()
exten => 664,2,MusicOnHold()

/.../
{code}

h3. Description

I establish a connection from phone to computer, then press the "Transfer" key on the phone followed by 664, and as a result, I receive message "Transfer failed" on phone's display. However because each sip account have allowtransfer=yes, the transfer should be possible. Changing allowtransfer=no to allowtransfer=yes in [general] section makes everything work correctly.

h3. Debug messages

{code}
 == Using SIP RTP CoS mark 5
   -- Executing [501@default:1] Dial("SIP/phone-00000009", "SIP/computer,,kt") in new stack
 == Using UDPTL CoS mark 5
 == Using SIP RTP CoS mark 5
   -- Called SIP/computer
   -- SIP/computer-0000000a is ringing
   -- SIP/computer-0000000a answered SIP/phone-00000009
   -- Started music on hold, class 'default', on channel 'SIP/computer-0000000a'
   -- Stopped music on hold on SIP/computer-0000000a
 == Spawn extension (default, 501, 1) exited non-zero on 'SIP/phone-00000009'
{code}

SIP traffic:

{code}
21:29:41.041924 IP 192.168.1.1.sip > 192.168.1.3.sip: SIP, length: 818
E..N4...@.,.
...
........:.`INVITE sip:501@192.168.1.3 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK16665230392008528036;rport
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 1 INVITE
Contact: <sip:phone@192.168.1.1:5060>
Max-Forwards: 70
Supported: replaces, join, path
User-Agent:
Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE
Content-Type: application/sdp
Content-Length: 286

v=0
o=192.168.1.1 19442218 13860619 IN IP4 192.168.1.1
s=A conversation
c=IN IP4 192.168.1.1
t=0 0
m=audio 10054 RTP/AVP 8 4 18 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:4 G723/8000
a=rtpmap:18 G729/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv

21:29:41.044012 IP 192.168.1.3.sip > 192.168.1.1.sip: SIP, length: 476
E.......@...
...
...........SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK16665230392008528036;received=192.168.1.1;rport=5060
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 1 INVITE
Server: MySIPclient
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Contact: <sip:501@192.168.1.3:5060>
Content-Length: 0


21:29:41.048269 IP 192.168.1.3.sip > 192.168.1.2.32767: UDP, length 877
E...7...@.*W
...
........u..INVITE sip:computer@192.168.1.2:32767 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.3:5060;branch=z9hG4bK4beb7ab1
Max-Forwards: 20
From: "500" <sip:500@192.168.1.3>;tag=as180835de
To: <sip:computer@192.168.1.2:32767>
Contact: <sip:500@192.168.1.3:5060>
Call-ID: 7319def4776a937c33d66f9d40614c07@192.168.1.3
CSeq: 102 INVITE
User-Agent: MySIPclient
Date: Sat, 24 Mar 2012 20:29:41 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 320

v=0
o=root 1989465496 1989465496 IN IP4 192.168.1.3
s=MySIPclient
c=IN IP4 192.168.1.3
t=0 0
m=audio 5016 RTP/AVP 8 0 111 9 3 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:111 G726-32/8000
a=rtpmap:9 G722/8000
a=rtpmap:3 GSM/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv

21:29:41.058167 IP 192.168.1.2.32767 > 192.168.1.3.sip: UDP, length 478
E.....@.@.".
...
...........SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 192.168.1.3:5060;received=192.168.1.3;branch=z9hG4bK4beb7ab1
Call-ID: 7319def4776a937c33d66f9d40614c07@192.168.1.3
From: "500" <sip:500@192.168.1.3>;tag=as180835de
To: <sip:computer@192.168.1.2>;tag=5c13c82b-83d4-45f7-8b3d-c9043af3500b
CSeq: 102 INVITE
Contact: <sip:computer@192.168.1.2:32767>
Allow: PRACK, SUBSCRIBE, NOTIFY, REFER, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, REGISTER, OPTIONS, MESSAGE
Content-Length:  0


21:29:41.058920 IP 192.168.1.3.sip > 192.168.1.1.sip: SIP, length: 492
E.......@...
...
...........SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK16665230392008528036;received=192.168.1.1;rport=5060
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 1 INVITE
Server: MySIPclient
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Contact: <sip:501@192.168.1.3:5060>
Content-Length: 0


21:29:47.633733 IP 192.168.1.2.32767 > 192.168.1.3.sip: UDP, length 739
E.....@.@.!.
...
.........Q%SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.3:5060;received=192.168.1.3;branch=z9hG4bK4beb7ab1
Call-ID: 7319def4776a937c33d66f9d40614c07@192.168.1.3
From: "500" <sip:500@192.168.1.3>;tag=as180835de
To: <sip:computer@192.168.1.2>;tag=5c13c82b-83d4-45f7-8b3d-c9043af3500b
CSeq: 102 INVITE
Allow: PRACK, SUBSCRIBE, NOTIFY, REFER, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, REGISTER, OPTIONS, MESSAGE
Contact: <sip:computer@192.168.1.2:32767>
Supported: replaces, 100rel
Content-Type: application/sdp
Content-Length:   203

v=0
o=192.168.1.2 3541609753 1 IN IP4 192.168.1.2
s=sflphone
c=IN IP4 192.168.1.2
t=0 0
m=audio 61152 RTP/AVP 8
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15

21:29:47.634924 IP 192.168.1.3.sip > 192.168.1.2.32767: UDP, length 411
E...7   ..@.,'
...
...........ACK sip:computer@192.168.1.2:32767 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.3:5060;branch=z9hG4bK36ee112f
Max-Forwards: 20
From: "500" <sip:500@192.168.1.3>;tag=as180835de
To: <sip:computer@192.168.1.2:32767>;tag=5c13c82b-83d4-45f7-8b3d-c9043af3500b
Contact: <sip:500@192.168.1.3:5060>
Call-ID: 7319def4776a937c33d66f9d40614c07@192.168.1.3
CSeq: 102 ACK
User-Agent: MySIPclient
Content-Length: 0


21:29:47.636061 IP 192.168.1.3.sip > 192.168.1.1.sip: SIP, length: 762
E.......@...
...
...........SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK16665230392008528036;received=192.168.1.1;rport=5060
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 1 INVITE
Server: MySIPclient
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Contact: <sip:501@192.168.1.3:5060>
Content-Type: application/sdp
Content-Length: 242

v=0
o=root 1681981238 1681981238 IN IP4 192.168.1.3
s=MySIPclient
c=IN IP4 192.168.1.3
t=0 0
m=audio 5022 RTP/AVP 8 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv

21:29:47.882479 IP 192.168.1.1.sip > 192.168.1.3.sip: SIP, length: 339
E..o4...@...
...
........[..ACK sip:501@192.168.1.3:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK1284093201880717849
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 1 ACK
Max-Forwards: 70
User-Agent:
Content-Length: 0


21:29:50.404510 IP 192.168.1.1.sip > 192.168.1.3.sip: SIP, length: 829
E..Y5G..@.,C
...
........E.@INVITE sip:501@192.168.1.3:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK2968510016301816748;rport
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 2 INVITE
Contact: <sip:phone@192.168.1.1:5060>
Max-Forwards: 70
Supported: replaces, join, path
User-Agent:
Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE
Content-Type: application/sdp
Content-Length: 284

v=0
o=phone 19442218 1386620 IN IP4 192.168.1.1
s=A conversation
c=IN IP4 0.0.0.0
t=0 0
m=audio 10054 RTP/AVP 8 4 18 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:4 G723/8000
a=rtpmap:18 G729/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendonly

21:29:50.405327 IP 192.168.1.3.sip > 192.168.1.1.sip: SIP, length: 490
E.......@...
...
...........SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK2968510016301816748;received=192.168.1.1;rport=5060
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 2 INVITE
Server: MySIPclient
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Contact: <sip:501@192.168.1.3:5060>
Content-Length: 0


21:29:50.405639 IP 192.168.1.3.sip > 192.168.1.1.sip: SIP, length: 761
E.......@...
...
...........SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK2968510016301816748;received=192.168.1.1;rport=5060
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 2 INVITE
Server: MySIPclient
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Contact: <sip:501@192.168.1.3:5060>
Content-Type: application/sdp
Content-Length: 242

v=0
o=root 1681981238 1681981238 IN IP4 192.168.1.3
s=MySIPclient
c=IN IP4 192.168.1.3
t=0 0
m=audio 5022 RTP/AVP 8 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv

21:29:50.429749 IP 192.168.1.1.sip > 192.168.1.3.sip: SIP, length: 337
E..m5H..@...
...
........Y.[ACK sip:501@192.168.1.3:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK28192257236110061
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 2 ACK
Max-Forwards: 70
User-Agent:
Content-Length: 0


21:29:52.577121 IP 192.168.1.1.sip > 192.168.1.3.sip: SIP, length: 507
E...5I..@.-.
...
...........REFER sip:501@192.168.1.3:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK24765245871605614501;rport
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 3 REFER
Contact: <sip:phone@192.168.1.1:5060>
Refer-to: <sip:664@192.168.1.3>
Referred-By: "500" <sip:phone@192.168.1.3>
Max-Forwards: 70
User-Agent:
Event: refer
Content-Length: 0


21:29:52.577526 IP 192.168.1.3.sip > 192.168.1.1.sip: SIP, length: 501
E.......@...
...
...........SIP/2.0 603 Declined (policy)
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK24765245871605614501;received=192.168.1.1;rport=5060
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 3 REFER
Server: MySIPclient
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Contact: <sip:501@192.168.1.3:5060>
Content-Length: 0


21:29:52.597586 IP 192.168.1.1.sip > 192.168.1.3.sip: SIP, length: 830
E..Z5J..@.,?
...
INVITE sip:501@192.168.1.3:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK2621859432824610555;rport
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 4 INVITE
Contact: <sip:phone@192.168.1.1:5060>
Max-Forwards: 70
Supported: replaces, join, path
User-Agent:
Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, REFER, NOTIFY, INFO, PRACK, UPDATE, MESSAGE
Content-Type: application/sdp
Content-Length: 285

v=0
o=phone 19442218 1386621 IN IP4 192.168.1.1
s=A conversation
c=IN IP4 192.168.1.1
t=0 0
m=audio 10054 RTP/AVP 8 4 18 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:4 G723/8000
a=rtpmap:18 G729/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv

21:29:52.598141 IP 192.168.1.3.sip > 192.168.1.1.sip: SIP, length: 490
E.......@...
...
...........SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK2621859432824610555;received=192.168.1.1;rport=5060
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 4 INVITE
Server: MySIPclient
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Contact: <sip:501@192.168.1.3:5060>
Content-Length: 0


21:29:52.598451 IP 192.168.1.3.sip > 192.168.1.1.sip: SIP, length: 761
E.......@...
...
...........SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK2621859432824610555;received=192.168.1.1;rport=5060
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 4 INVITE
Server: MySIPclient
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Contact: <sip:501@192.168.1.3:5060>
Content-Type: application/sdp
Content-Length: 242

v=0
o=root 1681981238 1681981238 IN IP4 192.168.1.3
s=MySIPclient
c=IN IP4 192.168.1.3
t=0 0
m=audio 5022 RTP/AVP 8 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv

21:29:52.827679 IP 192.168.1.1.sip > 192.168.1.3.sip: SIP, length: 340
E..p5U..@...
...
........\nKACK sip:501@192.168.1.3:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK14937260511268519094
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 4 ACK
Max-Forwards: 70
User-Agent:
Content-Length: 0


21:29:54.039458 IP 192.168.1.1.sip > 192.168.1.3.sip: SIP, length: 424
E...5...@.-.
...
.........._REGISTER sip:192.168.1.3 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK103002477418921070;rport
From: "500" <sip:phone@192.168.1.3>;tag=1484128807
To: "500" <sip:phone@192.168.1.3>
Call-ID: 23319494530146-161958814395@192.168.1.1
CSeq: 525 REGISTER
Contact: <sip:phone@192.168.1.1:5060>
Max-Forwards: 70
Expires: 60
Supported: path
User-Agent:
Content-Length: 0


21:29:54.040642 IP 192.168.1.3.sip > 192.168.1.1.sip: SIP, length: 572
E..X....@...
...
........D.`SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK103002477418921070;received=192.168.1.1;rport=5060
From: "500" <sip:phone@192.168.1.3>;tag=1484128807
To: "500" <sip:phone@192.168.1.3>;tag=as4896ebec
Call-ID: 23319494530146-161958814395@192.168.1.1
CSeq: 525 REGISTER
Server: MySIPclient
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Expires: 60
Contact: <sip:phone@192.168.1.1:5060>;expires=60
Date: Sat, 24 Mar 2012 20:29:54 GMT
Content-Length: 0


21:29:55.472266 IP 192.168.1.1.sip > 192.168.1.3.sip: SIP, length: 344
E..t5...@.-.
...
........`..BYE sip:501@192.168.1.3:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK181181377157962800;rport
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 5 BYE
Max-Forwards: 70
User-Agent:
Content-Length: 0


21:29:55.472934 IP 192.168.1.3.sip > 192.168.1.1.sip: SIP, length: 448
E.......@..)
...
...........SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.1:5060;branch=z9hG4bK181181377157962800;received=192.168.1.1;rport=5060
From: "500" <sip:phone@192.168.1.3>;tag=2890829727
To: "501" <sip:501@192.168.1.3>;tag=as182fc9c2
Call-ID: 17949271169260-143271598918349@192.168.1.1
CSeq: 5 BYE
Server: MySIPclient
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH
Supported: replaces, timer
Content-Length: 0


21:29:55.473528 IP 192.168.1.3.sip > 192.168.1.2.32767: UDP, length 450
E...7
..@.+.
...
...........BYE sip:computer@192.168.1.2:32767 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.3:5060;branch=z9hG4bK171bc638
Max-Forwards: 20
From: "500" <sip:500@192.168.1.3>;tag=as180835de
To: <sip:computer@192.168.1.2:32767>;tag=5c13c82b-83d4-45f7-8b3d-c9043af3500b
Call-ID: 7319def4776a937c33d66f9d40614c07@192.168.1.3
CSeq: 103 BYE
User-Agent: MySIPclient
X-Asterisk-HangupCause: Normal Clearing
X-Asterisk-HangupCauseCode: 16
Content-Length: 0


21:29:55.474409 IP 192.168.1.2.32767 > 192.168.1.3.sip: UDP, length 322
E..^..@.@.#.
...
........JB.SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.3:5060;received=192.168.1.3;branch=z9hG4bK171bc638
Call-ID: 7319def4776a937c33d66f9d40614c07@192.168.1.3
From: "500" <sip:500@192.168.1.3>;tag=as180835de
To: <sip:computer@192.168.1.2>;tag=5c13c82b-83d4-45f7-8b3d-c9043af3500b
CSeq: 103 BYE
Content-Length:  0
{code}