SIP Trunk outbound issue BYDsip

[Antony Fernando]

Hi all,

I'm having this sip trunk issue right now. Hope you guys can help me to find the solution for this case.

Issue : when the user (person who receive the call) end the call, it’s still connecting on the ip phone. But, If the call ends from ip phone which initiates the calling, both parties is disconnected.

I received BYDsip and keep trying, instead of BYE sip on the debug (when user end the call).

Call flow : IP PHONE > CUCM > VG (SIP) > ITSP

I've contacted the provider. They said that they sent BYE instead of BYDsip (file attached from provider).

Kind of stuck here :(

Also, I attach the sh run and sh version of VG.

Received:
OPTIONS sip:10.122.66.18:5060 SIP/2.0
Via: SIP/2.0/UDP 10.123.36.4:5060;branch=z9hG4bK5f23f265acaf8
From: <sip:10.123.36.4>;tag=1214771028
To: <sip:10.122.66.18>
Date: Wed, 28 Feb 2018 06:25:50 GMT
Call-ID: 36f17080-a9614b6e-49f48-4247b0a@10.123.36.4
User-Agent: Cisco-CUCM11.5
CSeq: 101 OPTIONS
Contact: <sip:10.123.36.4:5060>
Max-Forwards: 0
Content-Length: 0

Feb 28 06:25:50.789: //18176/0E38128B87A6/SIP/Msg/ccsipDisplayMsg:
Sent:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.123.36.4:5060;branch=z9hG4bK5f23f265acaf8
From: <sip:10.123.36.4>;tag=1214771028
To: <sip:10.122.66.18>;tag=1E28DEA4-210A
Date: Wed, 28 Feb 2018 06:25:50 GMT
Call-ID: 36f17080-a9614b6e-49f48-4247b0a@10.123.36.4
Server: Cisco-SIPGateway/IOS-15.4.3.M1
CSeq: 101 OPTIONS
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
Allow-Events: telephone-event
Accept: application/sdp
Supported: 100rel,timer,resource-priority,replaces,sdp-anat
Content-Type: application/sdp
Content-Length: 371
v=0
o=CiscoSystemsSIP-GW-UserAgent 8499 8193 IN IP4 10.122.66.18
s=SIP Call
c=IN IP4 10.122.66.18
t=0 0
m=audio 0 RTP/AVP 18 0 8 9 4 2 15
c=IN IP4 10.122.66.18
m=image 0 udptl t38
c=IN IP4 10.122.66.18
a=T38FaxVersion:0
a=T38MaxBitRate:9600
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:200
a=T38FaxMaxDatagram:320
a=T38FaxUdpEC:t38UDPRedundancy

Feb 28 06:25:54.709: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
INVITE sip:0085711429572@10.122.66.18:5060 SIP/2.0
Via: SIP/2.0/UDP 10.123.36.4:5060;branch=z9hG4bK5f2411b3bd21
From: "Meeting Room 401" <sip:2670001@10.123.36.4>;tag=4773334~d6b4d3d3-4ec1-4cce-8472-285487993355-53042470
To: <sip:0085711429572@10.122.66.18>
Date: Wed, 28 Feb 2018 06:25:54 GMT
Call-ID: 3953ca80-a9614b72-49f4a-4247b0a@10.123.36.4
Supported: timer,resource-priority,replaces
Min-SE:  1800
User-Agent: Cisco-CUCM11.5
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY
CSeq: 101 INVITE
Expires: 180
Allow-Events: presence
Supported: X-cisco-srtp-fallback,X-cisco-original-called
Call-Info: <urn:x-cisco-remotecc:callinfo>;x-cisco-video-traffic-class=DESKTOP
Session-ID: 2fd65328b8bc16000134e9caa4773332;remote=00000000000000000000000000000000
Cisco-Guid: 0961792640-0000065536-0000003293-0069499658
Session-Expires:  1800
P-Asserted-Identity: "Meeting Room 401" <sip:2670001@10.123.36.4>
Remote-Party-ID: "Meeting Room 401" <sip:2670001@10.123.36.4>;party=calling;screen=yes;privacy=off
Contact: <sip:2670001@10.123.36.4:5060>;video;audio
Max-Forwards: 69
Content-Type: application/sdp
Content-Length: 488
v=0
o=CiscoSystemsCCM-SIP 4773334 1 IN IP4 10.123.36.4
s=SIP Call
c=IN IP4 10.122.32.38
b=TIAS:384000
b=AS:384
t=0 0
m=audio 16400 RTP/AVP 0 8 18 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
m=video 16402 RTP/AVP 97
b=TIAS:384000
a=rtpmap:97 H264/90000
a=fmtp:97 profile-level-id=428014;packetization-mode=0;max-mbps=36000;max-fs=1200;level-asymmetry-allowed=1
a=content:main

Feb 28 06:25:54.717: //18177/3953CA800000/SIP/Msg/ccsipDisplayMsg:
Sent:
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.123.36.4:5060;branch=z9hG4bK5f2411b3bd21
From: "Meeting Room 401" <sip:2670001@10.123.36.4>;tag=4773334~d6b4d3d3-4ec1-4cce-8472-285487993355-53042470
To: <sip:0085711429572@10.122.66.18>
Date: Wed, 28 Feb 2018 06:25:54 GMT
Call-ID: 3953ca80-a9614b72-49f4a-4247b0a@10.123.36.4
CSeq: 101 INVITE
Allow-Events: telephone-event
Server: Cisco-SIPGateway/IOS-15.4.3.M1
Content-Length: 0

Feb 28 06:25:54.725: //18179/3953CA800000/SIP/Msg/ccsipDisplayMsg:
Sent:
INVITE sip:085711429572@58.65.241.220:5060 SIP/2.0
Via: SIP/2.0/UDP 202.77.122.124:5060;branch=z9hG4bK4B3DB
Remote-Party-ID: "Meeting Room 401" <sip:2670001@202.77.122.124>;party=calling;screen=yes;privacy=off
From: "Meeting Room 401" <sip:2670001@58.65.241.220>;tag=1E28EE00-487
To: <sip:085711429572@58.65.241.220>
Date: Wed, 28 Feb 2018 06:25:54 GMT
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
Supported: 100rel,timer,resource-priority,replaces,sdp-anat
Min-SE:  1800
Cisco-Guid: 0961792640-0000065536-0000003293-0069499658
User-Agent: Cisco-SIPGateway/IOS-15.4.3.M1
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
CSeq: 101 INVITE
Timestamp: 1519799154
Contact: <sip:2670001@202.77.122.124:5060>
Expires: 180
Allow-Events: telephone-event
Max-Forwards: 68
Session-Expires:  1800
Content-Type: application/sdp
Content-Disposition: session;handling=required
Content-Length: 502
v=0
o=CiscoSystemsSIP-GW-UserAgent 7387 3026 IN IP4 202.77.122.124
s=SIP Call
c=IN IP4 202.77.122.124
t=0 0
m=audio 18096 RTP/AVP 8 121 101
c=IN IP4 202.77.122.124
a=rtpmap:8 PCMA/8000
a=rtpmap:121 frf-dialed-digit/8000
a=fmtp:121 0-15
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
m=video 18094 RTP/AVP 119
c=IN IP4 202.77.122.124
b=TIAS:384000
a=rtpmap:119 H264/90000
a=fmtp:119 profile-level-id=428014;packetization-mode=0;max-mbps=36000;max-fs=1200
a=content:main

Feb 28 06:25:54.733: //18179/3953CA800000/SIP/Msg/ccsipDisplayMsg:
Received:
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 202.77.122.124:5060;branch=z9hG4bK4B3DB
From: "Meeting Room 401" <sip:2670001@58.65.241.220:5060>;tag=1E28EE00-487
To: <sip:085711429572@58.65.241.220:5060>
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
CSeq: 101 INVITE
Timestamp: 1519799154 0.000118
User-Agent: FreeSWITCH-mod_sofia/1.2.23~64bit
Content-Length: 0

Feb 28 06:25:54.773: //18179/3953CA800000/SIP/Msg/ccsipDisplayMsg:
Received:
SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 202.77.122.124:5060;branch=z9hG4bK4B3DB
From: "Meeting Room 401" <sip:2670001@58.65.241.220:5060>;tag=1E28EE00-487
To: <sip:085711429572@58.65.241.220:5060>;tag=cmtZ2NrX4S2HQ
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
CSeq: 101 INVITE
Contact: <sip:085711429572@58.65.241.220:5060;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.2.23~64bit
Accept: application/sdp
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Allow-Events: talk, hold, conference, refer
Content-Type: application/sdp
Content-Disposition: session
Content-Length: 244
Remote-Party-ID: "085711429572" <sip:085711429572@10.20.31.58>;party=calling;privacy=off;screen=no
v=0
o=FreeSWITCH 1519786028 1519786029 IN IP4 58.65.241.220
s=FreeSWITCH
c=IN IP4 58.65.241.220
t=0 0
m=audio 13978 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
m=video 0 RTP/AVP 19

Feb 28 06:25:54.777: //18177/3953CA800000/SIP/Msg/ccsipDisplayMsg:
Sent:
SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 10.123.36.4:5060;branch=z9hG4bK5f2411b3bd21
From: "Meeting Room 401" <sip:2670001@10.123.36.4>;tag=4773334~d6b4d3d3-4ec1-4cce-8472-285487993355-53042470
To: <sip:0085711429572@10.122.66.18>;tag=1E28EE38-90
Date: Wed, 28 Feb 2018 06:25:54 GMT
Call-ID: 3953ca80-a9614b72-49f4a-4247b0a@10.123.36.4
CSeq: 101 INVITE
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
Allow-Events: telephone-event
Remote-Party-ID: "085711429572" <sip:085711429572@10.122.66.18>;party=called;screen=no;privacy=off
Contact: <sip:0085711429572@10.122.66.18:5060>
Supported: sdp-anat
Server: Cisco-SIPGateway/IOS-15.4.3.M1
Content-Type: application/sdp
Content-Disposition: session;handling=required
Content-Length: 292
v=0
o=CiscoSystemsSIP-GW-UserAgent 6406 3765 IN IP4 10.122.66.18
s=SIP Call
c=IN IP4 10.122.66.18
t=0 0
m=audio 18090 RTP/AVP 8 101
c=IN IP4 10.122.66.18
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
m=video 0 RTP/AVP 97
c=IN IP4 10.122.66.18

Feb 28 06:25:55.137: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
OPTIONS sip:10.122.66.18:5060 SIP/2.0
Via: SIP/2.0/UDP 10.122.66.4:5060;branch=z9hG4bK4b984108573f0
From: <sip:10.122.66.4>;tag=612844259
To: <sip:10.122.66.18>
Date: Wed, 28 Feb 2018 06:25:55 GMT
Call-ID: 39ec6100-a9614b73-46c5d-4427a0a@10.122.66.4
User-Agent: Cisco-CUCM11.5
CSeq: 101 OPTIONS
Contact: <sip:10.122.66.4:5060>
Max-Forwards: 0
Content-Length: 0

Feb 28 06:25:55.141: //18181/10CF874B87AD/SIP/Msg/ccsipDisplayMsg:
Sent:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.122.66.4:5060;branch=z9hG4bK4b984108573f0
From: <sip:10.122.66.4>;tag=612844259
To: <sip:10.122.66.18>;tag=1E28EFA0-2263
Date: Wed, 28 Feb 2018 06:25:55 GMT
Call-ID: 39ec6100-a9614b73-46c5d-4427a0a@10.122.66.4
Server: Cisco-SIPGateway/IOS-15.4.3.M1
CSeq: 101 OPTIONS
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
Allow-Events: telephone-event
Accept: application/sdp
Supported: 100rel,timer,resource-priority,replaces,sdp-anat
Content-Type: application/sdp
Content-Length: 371
v=0
o=CiscoSystemsSIP-GW-UserAgent 9887 1693 IN IP4 10.122.66.18
s=SIP Call
c=IN IP4 10.122.66.18
t=0 0
m=audio 0 RTP/AVP 18 0 8 9 4 2 15
c=IN IP4 10.122.66.18
m=image 0 udptl t38
c=IN IP4 10.122.66.18
a=T38FaxVersion:0
a=T38MaxBitRate:9600
a=T38FaxRateManagement:transferredTCF
a=T38FaxMaxBuffer:200
a=T38FaxMaxDatagram:320
a=T38FaxUdpEC:t38UDPRedundancy

Feb 28 06:26:03.013: //18179/3953CA800000/SIP/Msg/ccsipDisplayMsg:
Received:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 202.77.122.124:5060;branch=z9hG4bK4B3DB
From: "Meeting Room 401" <sip:2670001@58.65.241.220:5060>;tag=1E28EE00-487
To: <sip:085711429572@58.65.241.220:5060>;tag=cmtZ2NrX4S2HQ
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
CSeq: 101 INVITE
Contact: <sip:085711429572@58.65.241.220:5060;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.2.23~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Require: timer
Supported: timer, path, replaces
Allow-Events: talk, hold, conference, refer
Session-Expires: 1800;refresher=uac
Min-SE: 1800
Content-Type: application/sdp
Content-Disposition: session
Content-Length: 244
Remote-Party-ID: "Outbound Call" <sip:170086285711429572@10.20.31.58>;party=calling;privacy=off;screen=no
v=0
o=FreeSWITCH 1519786028 1519786029 IN IP4 58.65.241.220
s=FreeSWITCH
c=IN IP4 58.65.241.220
t=0 0
m=audio 13978 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
m=video 0 RTP/AVP 19

Feb 28 06:26:03.017: //18179/3953CA800000/SIP/Msg/ccsipDisplayMsg:
Sent:
ACK sip:085711429572@58.65.241.220:5060;transport=udp SIP/2.0
Via: SIP/2.0/UDP 202.77.122.124:5060;branch=z9hG4bK4C85A
From: "Meeting Room 401" <sip:2670001@58.65.241.220>;tag=1E28EE00-487
To: <sip:085711429572@58.65.241.220:5060>;tag=cmtZ2NrX4S2HQ
Date: Wed, 28 Feb 2018 06:25:54 GMT
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
Max-Forwards: 70
CSeq: 101 ACK
Allow-Events: telephone-event
Content-Length: 0

Feb 28 06:26:03.017: //18177/3953CA800000/SIP/Msg/ccsipDisplayMsg:
Sent:
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.123.36.4:5060;branch=z9hG4bK5f2411b3bd21
From: "Meeting Room 401" <sip:2670001@10.123.36.4>;tag=4773334~d6b4d3d3-4ec1-4cce-8472-285487993355-53042470
To: <sip:0085711429572@10.122.66.18>;tag=1E28EE38-90
Date: Wed, 28 Feb 2018 06:25:54 GMT
Call-ID: 3953ca80-a9614b72-49f4a-4247b0a@10.123.36.4
CSeq: 101 INVITE
Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
Allow-Events: telephone-event
Remote-Party-ID: "Outbound Call" <sip:170086285711429572@10.122.66.18>;party=called;screen=no;privacy=off
Contact: <sip:0085711429572@10.122.66.18:5060>
Supported: replaces
Supported: sdp-anat
Server: Cisco-SIPGateway/IOS-15.4.3.M1
Session-Expires:  1800;refresher=uac
Require: timer
Supported: timer
Content-Type: application/sdp
Content-Disposition: session;handling=required
Content-Length: 292
v=0
o=CiscoSystemsSIP-GW-UserAgent 6406 3765 IN IP4 10.122.66.18
s=SIP Call
c=IN IP4 10.122.66.18
t=0 0
m=audio 18090 RTP/AVP 8 101
c=IN IP4 10.122.66.18
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
m=video 0 RTP/AVP 97
c=IN IP4 10.122.66.18

Feb 28 06:26:03.025: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
ACK sip:0085711429572@10.122.66.18:5060 SIP/2.0
Via: SIP/2.0/UDP 10.123.36.4:5060;branch=z9hG4bK5f2435431a56b
From: "Meeting Room 401" <sip:2670001@10.123.36.4>;tag=4773334~d6b4d3d3-4ec1-4cce-8472-285487993355-53042470
To: <sip:0085711429572@10.122.66.18>;tag=1E28EE38-90
Date: Wed, 28 Feb 2018 06:25:54 GMT
Call-ID: 3953ca80-a9614b72-49f4a-4247b0a@10.123.36.4
User-Agent: Cisco-CUCM11.5
Max-Forwards: 70
CSeq: 101 ACK
Allow-Events: presence
Content-Length: 0

Feb 28 06:26:14.653: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
BYDsip:2670001@202.77.122.124:5060 SIP/2.0
Via: SIP/2.0/UDP 58.65.241.220:5060;rport;branch=z9hG4bKBm47ry9jNccvc
Max-Forwards: 70
From: <sip:085711429572@58.65.241.220:5060>;tag=cmtZ2NrX4S2HQ
To: "Meeting Room 401" <sip:2670001@58.65.241.220:5060>;tag=1E28EE00-487
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
CSeq: 119563949 BYE
Contact: <sip:085711429572@58.65.241.220:5060;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.2.23~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Reason: Q.850;cause=16;text="NORMAL_CLEARING"
Content-Length: 0

Feb 28 06:26:15.657: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
BYDsip:2670001@202.77.122.124:5060 SIP/2.0
Via: SIP/2.0/UDP 58.65.241.220:5060;rport;branch=z9hG4bKBm47ry9jNccvc
Max-Forwards: 70
From: <sip:085711429572@58.65.241.220:5060>;tag=cmtZ2NrX4S2HQ
To: "Meeting Room 401" <sip:2670001@58.65.241.220:5060>;tag=1E28EE00-487
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
CSeq: 119563949 BYE
Contact: <sip:085711429572@58.65.241.220:5060;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.2.23~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Reason: Q.850;cause=16;text="NORMAL_CLEARING"
Content-Length: 0

Feb 28 06:26:17.653: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
BYDsip:2670001@202.77.122.124:5060 SIP/2.0
Via: SIP/2.0/UDP 58.65.241.220:5060;rport;branch=z9hG4bKBm47ry9jNccvc
Max-Forwards: 70
From: <sip:085711429572@58.65.241.220:5060>;tag=cmtZ2NrX4S2HQ
To: "Meeting Room 401" <sip:2670001@58.65.241.220:5060>;tag=1E28EE00-487
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
CSeq: 119563949 BYE
Contact: <sip:085711429572@58.65.241.220:5060;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.2.23~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Reason: Q.850;cause=16;text="NORMAL_CLEARING"
Content-Length: 0

Feb 28 06:26:21.653: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
BYDsip:2670001@202.77.122.124:5060 SIP/2.0
Via: SIP/2.0/UDP 58.65.241.220:5060;rport;branch=z9hG4bKBm47ry9jNccvc
Max-Forwards: 70
From: <sip:085711429572@58.65.241.220:5060>;tag=cmtZ2NrX4S2HQ
To: "Meeting Room 401" <sip:2670001@58.65.241.220:5060>;tag=1E28EE00-487
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
CSeq: 119563949 BYE
Contact: <sip:085711429572@58.65.241.220:5060;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.2.23~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Reason: Q.850;cause=16;text="NORMAL_CLEARING"
Content-Length: 0

Feb 28 06:26:25.653: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
BYDsip:2670001@202.77.122.124:5060 SIP/2.0
Via: SIP/2.0/UDP 58.65.241.220:5060;rport;branch=z9hG4bKBm47ry9jNccvc
Max-Forwards: 70
From: <sip:085711429572@58.65.241.220:5060>;tag=cmtZ2NrX4S2HQ
To: "Meeting Room 401" <sip:2670001@58.65.241.220:5060>;tag=1E28EE00-487
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
CSeq: 119563949 BYE
Contact: <sip:085711429572@58.65.241.220:5060;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.2.23~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Reason: Q.850;cause=16;text="NORMAL_CLEARING"
Content-Length: 0

Feb 28 06:26:29.653: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
BYDsip:2670001@202.77.122.124:5060 SIP/2.0
Via: SIP/2.0/UDP 58.65.241.220:5060;rport;branch=z9hG4bKBm47ry9jNccvc
Max-Forwards: 70
From: <sip:085711429572@58.65.241.220:5060>;tag=cmtZ2NrX4S2HQ
To: "Meeting Room 401" <sip:2670001@58.65.241.220:5060>;tag=1E28EE00-487
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
CSeq: 119563949 BYE
Contact: <sip:085711429572@58.65.241.220:5060;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.2.23~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Reason: Q.850;cause=16;text="NORMAL_CLEARING"
Content-Length: 0

Feb 28 06:26:33.681: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received:
BYDsip:2670001@202.77.122.124:5060 SIP/2.0
Via: SIP/2.0/UDP 58.65.241.220:5060;rport;branch=z9hG4bKBm47ry9jNccvc
Max-Forwards: 70
From: <sip:085711429572@58.65.241.220:5060>;tag=cmtZ2NrX4S2HQ
To: "Meeting Room 401" <sip:2670001@58.65.241.220:5060>;tag=1E28EE00-487
Call-ID: 10900C1A-1B8711E8-87ACE81C-9A45697E@202.77.122.124
CSeq: 119563949 BYE
Contact: <sip:085711429572@58.65.241.220:5060;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.2.23~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Reason: Q.850;cause=16;text="NORMAL_CLEARING"
Content-Length: 0

Thanks a lot guys :)

[R0g22]

Whoever is "58.65.241.220", is the one sending that message.