im going crazy in debugging inbound call

my scenario is :

Freeswetch PBX ---> kamailio SBC ---> Ms Teams

my issue are:

1 Freeswitch doesnt reply to kamailio after 180 ringing why ?

2) kamailio forward ACK after 200 OK but MS  not accept it, (call stuck in setup )

any advice are welcome !!!

below a trace:

Thanks You for support !
||||||||||||||||||||
====================
tag: rcv
pid: 92862
process: 2
time: 1611139150.541333
date: Wed Jan 20 10:39:10 2021
proto: udp ipv4
srcip: 185.132.68.116
srcport: 5060
dstip: 69.172.96.197
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
INVITE sip:100247@69.172.96.197:5060 SIP/2.0
v:SIP/2.0/UDP 185.132.68.116;rport;branch=z9hG4bKK8jFBBUtt1ZtH
Max-Forwards:65
f:"Davide Zanichelli"<sip:3454558075@185.132.68.116>;tag=jFD3trFDj8t0p
t:<sip:100247@69.172.96.197:5060>
i:92665309-d5ae-1239-fc81-9259e6a86632
CSeq:31015783 INVITE
m:<sip:mod_sofia@185.132.68.116:5060>
User-Agent:FreeSWITCH-mod_sofia/1.6.20~64bit
Allow:INVITE,ACK,BYE,CANCEL,OPTIONS,MESSAGE,INFO,UPDATE,REGISTER,REFER,PRACK,NOTIFY,PUBLISH,SUBSCRIBE
k:precondition,100rel,path,replaces
u:talk,hold,conference,presence,as-feature-event,dialog,line-seize,call-info,sla,include-session-description,presence.winfo,message-summary,refer
c:application/sdp
Content-Disposition:session
l:307
Remote-Party-ID:"Davide Zanichelli"<sip:3454558075@185.132.68.116>;party=calling;screen=yes;privacy=off

v=0
o=FreeSWITCH 1611126712 1611126713 IN IP4 185.132.68.116
s=FreeSWITCH
c=IN IP4 185.132.68.116
t=0 0
a=sendrecv
m=audio 12438 RTP/AVP 18 8 101 13
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=rtpmap:13 CN/8000
a=ptime:20
||||||||||||||||||||
====================
tag: snd
pid: 92862
process: 2
time: 1611139150.546923
date: Wed Jan 20 10:39:10 2021
proto: udp ipv4
srcip: 69.172.96.197
srcport: 5060
dstip: 185.132.68.116
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 100 trying -- your call is important to us
v:SIP/2.0/UDP 185.132.68.116;rport=5060;branch=z9hG4bKK8jFBBUtt1ZtH;received=185.132.68.116
f:"Davide Zanichelli"<sip:3454558075@185.132.68.116>;tag=jFD3trFDj8t0p
t:<sip:100247@69.172.96.197:5060>
i:92665309-d5ae-1239-fc81-9259e6a86632
CSeq:31015783 INVITE
Server: kamailio (5.3.2 (x86_64/linux))
Content-Length: 0

||||||||||||||||||||
====================
tag: snd
pid: 92862
process: 2
time: 1611139150.567406
date: Wed Jan 20 10:39:10 2021
proto: tls ipv4
srcip: 69.172.96.197
srcport: 5061
dstip: 52.114.75.24
dstport: 5061
~~~~~~~~~~~~~~~~~~~~
INVITE sip:+1010@sip.pstnhub.microsoft.com:5061;transport=tls SIP/2.0
Record-Route: <sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
Via: SIP/2.0/TLS 69.172.96.197:5061;branch=z9hG4bK7d7f.b59314bb3e04e970e811f1672127de61.0
v:SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;rport=5060;branch=z9hG4bKK8jFBBUtt1ZtH
Max-Forwards:64
f:"Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
t:<sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>
i:92665309-d5ae-1239-fc81-9259e6a86632
CSeq:31015783 INVITE
m:<sip:mod_sofia@185.132.68.116:5060>
User-Agent:FreeSWITCH-mod_sofia/1.6.20~64bit
Allow:INVITE,ACK,BYE,CANCEL,OPTIONS,MESSAGE,INFO,UPDATE,REGISTER,REFER,PRACK,NOTIFY,PUBLISH,SUBSCRIBE
k:precondition,100rel,path,replaces
u:talk,hold,conference,presence,as-feature-event,dialog,line-seize,call-info,sla,include-session-description,presence.winfo,message-summary,refer
c:application/sdp
Content-Disposition:session
l:1390
Remote-Party-ID:"Davide Zanichelli"<sip:3454558075@185.132.68.116>;party=calling;screen=yes;privacy=off

v=0
o=FreeSWITCH 1611126712 1611126713 IN IP4 69.172.96.197
s=FreeSWITCH
c=IN IP4 69.172.96.197
t=0 0
m=audio 33404 RTP/SAVP 8
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:33405
a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:iiD7YD06tIT76jNwnfUQYIPp/utJYrMGqN3h0pEF
a=crypto:2 AES_CM_128_HMAC_SHA1_32 inline:ccgVUhUMevpLySH3whtWFZVpn7ReHg9umhRsunsl
a=crypto:3 AES_192_CM_HMAC_SHA1_80 inline:C8cTVZsRwQO9Xoh/b2s6PITg6Wn2bb3FQpyUrksBezEQgrMQtBo
a=crypto:4 AES_192_CM_HMAC_SHA1_32 inline:qOzxnaJepixm60XPRvWGKpo5a0pc79sVcfcieCLSy5RV5gynArI
a=crypto:5 AES_256_CM_HMAC_SHA1_80 inline:ozHJArxk0AcpcVEIdeV0Fa8lHcsVesKBvuOXo/bkGhOftcNANiazLOFjroZaaB
a=crypto:6 AES_256_CM_HMAC_SHA1_32 inline:sKGkdsEg4qlu1x3Eh49iQGd75ykkfUi1EcpfTRz8OjXmbmD6TQiFiFUCOM4drz
a=crypto:7 F8_128_HMAC_SHA1_80 inline:oYDcS9SnWcb2yT4x4SJv6TI7qWu+3eftOW5cXsAQ
a=crypto:8 F8_128_HMAC_SHA1_32 inline:zo2HCUQ9ZFZanvwNC9X4zrpPlUA/OczdMhBm9qAK
a=crypto:9 NULL_HMAC_SHA1_80 inline:4PM96ZPd1nHU7oSG94IFUuRKlwNQ/BuaAIc8so94
a=crypto:10 NULL_HMAC_SHA1_32 inline:VUt2o556MpNSyW6KY2wwzCjDop/rVM+bnHlx8hCq
a=setup:actpass
a=fingerprint:sha-1 E7:26:DE:B4:A7:D8:93:2C:B0:7C:30:40:09:5A:AC:3F:FE:B9:D1:9A
a=ptime:20
a=ice-ufrag:Ew9KIvXR
a=ice-pwd:bkO9Wi2MPERrozLPniAvJa75lA
a=candidate:HdRdBOFmpkA08EjO 1 UDP 2130706431 69.172.96.197 33404 typ host
a=candidate:HdRdBOFmpkA08EjO 2 UDP 2130706430 69.172.96.197 33405 typ host
||||||||||||||||||||
====================
tag: snd
pid: 92862
process: 2
time: 1611139150.570482
date: Wed Jan 20 10:39:10 2021
proto: udp ipv4
srcip: 69.172.96.197
srcport: 5060
dstip: 185.132.68.116
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 100 trying -- your call is important to us
v:SIP/2.0/UDP 185.132.68.116;rport=5060;branch=z9hG4bKK8jFBBUtt1ZtH;received=185.132.68.116
f:"Davide Zanichelli"<sip:3454558075@185.132.68.116>;tag=jFD3trFDj8t0p
t:<sip:100247@69.172.96.197:5060>
i:92665309-d5ae-1239-fc81-9259e6a86632
CSeq:31015783 INVITE
Server: kamailio (5.3.2 (x86_64/linux))
Content-Length: 0

||||||||||||||||||||
====================
tag: rcv
pid: 92891
process: 31
time: 1611139150.648884
date: Wed Jan 20 10:39:10 2021
proto: tls ipv4
srcip: 52.114.75.24
srcport: 5061
dstip: 69.172.96.197
dstport: 5061
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 100 Trying
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/TLS 69.172.96.197:5061;branch=z9hG4bK7d7f.b59314bb3e04e970e811f1672127de61.0,SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

||||||||||||||||||||
====================
tag: rcv
pid: 92891
process: 31
time: 1611139150.904265
date: Wed Jan 20 10:39:10 2021
proto: tls ipv4
srcip: 52.114.75.24
srcport: 5061
dstip: 69.172.96.197
dstport: 5061
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 180 Ringing
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=43edcd63b6064936bb2916be57e3bdd0
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/TLS 69.172.96.197:5061;branch=z9hG4bK7d7f.b59314bb3e04e970e811f1672127de61.0,SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

||||||||||||||||||||
====================
tag: snd
pid: 92891
process: 31
time: 1611139150.904523
date: Wed Jan 20 10:39:10 2021
proto: udp ipv4
srcip: 69.172.96.197
srcport: 5060
dstip: 185.132.68.116
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 180 Ringing
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=43edcd63b6064936bb2916be57e3bdd0
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

||||||||||||||||||||
====================
tag: rcv
pid: 92891
process: 31
time: 1611139151.215842
date: Wed Jan 20 10:39:11 2021
proto: tls ipv4
srcip: 52.114.75.24
srcport: 5061
dstip: 69.172.96.197
dstport: 5061
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 180 Ringing
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=4165839cb8bb47f8b61a7c53c4904579
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/TLS 69.172.96.197:5061;branch=z9hG4bK7d7f.b59314bb3e04e970e811f1672127de61.0,SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

||||||||||||||||||||
====================
tag: snd
pid: 92891
process: 31
time: 1611139151.216549
date: Wed Jan 20 10:39:11 2021
proto: udp ipv4
srcip: 69.172.96.197
srcport: 5060
dstip: 185.132.68.116
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 180 Ringing
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=4165839cb8bb47f8b61a7c53c4904579
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

||||||||||||||||||||
====================
tag: rcv
pid: 92891
process: 31
time: 1611139151.504324
date: Wed Jan 20 10:39:11 2021
proto: tls ipv4
srcip: 52.114.75.24
srcport: 5061
dstip: 69.172.96.197
dstport: 5061
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 180 Ringing
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=ae2c8410ffffffff974ddff4e071048a
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/TLS 69.172.96.197:5061;branch=z9hG4bK7d7f.b59314bb3e04e970e811f1672127de61.0,SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

||||||||||||||||||||
====================
tag: snd
pid: 92891
process: 31
time: 1611139151.504495
date: Wed Jan 20 10:39:11 2021
proto: udp ipv4
srcip: 69.172.96.197
srcport: 5060
dstip: 185.132.68.116
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 180 Ringing
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=ae2c8410ffffffff974ddff4e071048a
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

||||||||||||||||||||
====================
tag: rcv
pid: 92891
process: 31
time: 1611139151.586377
date: Wed Jan 20 10:39:11 2021
proto: tls ipv4
srcip: 52.114.75.24
srcport: 5061
dstip: 69.172.96.197
dstport: 5061
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 183 Session Progress
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=5ec9692a0e334203ac38ef8afd16122a
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/TLS 69.172.96.197:5061;branch=z9hG4bK7d7f.b59314bb3e04e970e811f1672127de61.0,SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 747
CONTENT-TYPE: application/sdp
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

v=0
o=- 265741 0 IN IP4 127.0.0.1
s=session
c=IN IP4 52.112.19.158
b=CT:10000000
t=0 0
m=audio 49360 RTP/SAVP 8
c=IN IP4 52.112.19.158
a=rtcp:49361
a=ice-ufrag:JH2Q
a=ice-pwd:CZ+sIID/PcZ5VAKCaAtelE77
a=candidate:1 1 UDP 2130706431 52.112.19.158 49360 typ srflx raddr 10.0.136.8 rport 49360
a=candidate:1 2 UDP 2130705918 52.112.19.158 49361 typ srflx raddr 10.0.136.8 rport 49361
a=candidate:2 1 tcp-act 2121006078 52.112.19.158 49152 typ srflx raddr 10.0.136.8 rport 49152
a=candidate:2 2 tcp-act 2121006078 52.112.19.158 49152 typ srflx raddr 10.0.136.8 rport 49152
a=label:main-audio
a=mid:1
a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:PaVlOomzudnnj34hLpDC8v/T5CRlZ/AWApwRnw8q|2^31
a=sendrecv
a=rtpmap:8 PCMA/8000
a=ptime:20
||||||||||||||||||||
====================
tag: snd
pid: 92891
process: 31
time: 1611139151.587395
date: Wed Jan 20 10:39:11 2021
proto: udp ipv4
srcip: 69.172.96.197
srcport: 5060
dstip: 185.132.68.116
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 183 Session Progress
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=5ec9692a0e334203ac38ef8afd16122a
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 648
CONTENT-TYPE: application/sdp
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

v=0
o=- 265741 0 IN IP4 127.0.0.1
s=session
c=IN IP4 69.172.96.197
b=CT:10000000
t=0 0
m=audio 33412 RTP/AVP 8
c=IN IP4 69.172.96.197
a=ice-ufrag:JH2Q
a=ice-pwd:CZ+sIID/PcZ5VAKCaAtelE77
a=candidate:1 1 UDP 2130706431 52.112.19.158 49360 typ srflx raddr 10.0.136.8 rport 49360
a=candidate:1 2 UDP 2130705918 52.112.19.158 49361 typ srflx raddr 10.0.136.8 rport 49361
a=candidate:2 1 tcp-act 2121006078 52.112.19.158 49152 typ srflx raddr 10.0.136.8 rport 49152
a=candidate:2 2 tcp-act 2121006078 52.112.19.158 49152 typ srflx raddr 10.0.136.8 rport 49152
a=label:main-audio
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:33413
a=ptime:20
||||||||||||||||||||
====================
tag: rcv
pid: 92891
process: 31
time: 1611139151.618718
date: Wed Jan 20 10:39:11 2021
proto: tls ipv4
srcip: 52.114.75.24
srcport: 5061
dstip: 69.172.96.197
dstport: 5061
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 180 Ringing
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=a1fa24fdc70b4560b2681c3bc8c2b988
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/TLS 69.172.96.197:5061;branch=z9hG4bK7d7f.b59314bb3e04e970e811f1672127de61.0,SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

||||||||||||||||||||
====================
tag: snd
pid: 92891
process: 31
time: 1611139151.619161
date: Wed Jan 20 10:39:11 2021
proto: udp ipv4
srcip: 69.172.96.197
srcport: 5060
dstip: 185.132.68.116
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 180 Ringing
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=a1fa24fdc70b4560b2681c3bc8c2b988
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

||||||||||||||||||||
====================
tag: rcv
pid: 92891
process: 31
time: 1611139151.896661
date: Wed Jan 20 10:39:11 2021
proto: tls ipv4
srcip: 52.114.75.24
srcport: 5061
dstip: 69.172.96.197
dstport: 5061
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 180 Ringing
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=28c1eaa54933b9b6493312bc12bc4933
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/TLS 69.172.96.197:5061;branch=z9hG4bK7d7f.b59314bb3e04e970e811f1672127de61.0,SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

||||||||||||||||||||
====================
tag: snd
pid: 92891
process: 31
time: 1611139151.896797
date: Wed Jan 20 10:39:11 2021
proto: udp ipv4
srcip: 69.172.96.197
srcport: 5060
dstip: 185.132.68.116
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 180 Ringing
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=28c1eaa54933b9b6493312bc12bc4933
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

||||||||||||||||||||
====================
tag: rcv
pid: 92891
process: 31
time: 1611139152.979175
date: Wed Jan 20 10:39:12 2021
proto: tls ipv4
srcip: 52.114.75.24
srcport: 5061
dstip: 69.172.96.197
dstport: 5061
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 200 OK
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=5ec9692a0e334203ac38ef8afd16122a
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/TLS 69.172.96.197:5061;branch=z9hG4bK7d7f.b59314bb3e04e970e811f1672127de61.0,SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
RECORD-ROUTE: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>,<sip:kml.call2teams.io:5061;transport=tls;ftag=jFD3trFDj8t0p;lr>
CONTACT: <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=5a1e64a4-85c8-4490-be56-4a812ffdae1a;x-c=9ccd945968495e9686f2a90277029861/s/1/71d233106de24bbdac3074d199b624d2>
CONTENT-LENGTH: 747
SUPPORTED: timer
CONTENT-TYPE: application/sdp
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SESSION-EXPIRES: 3600;refresher=uas
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

v=0
o=- 265741 1 IN IP4 127.0.0.1
s=session
c=IN IP4 52.112.19.158
b=CT:10000000
t=0 0
m=audio 49360 RTP/SAVP 8
c=IN IP4 52.112.19.158
a=rtcp:49361
a=ice-ufrag:JH2Q
a=ice-pwd:CZ+sIID/PcZ5VAKCaAtelE77
a=candidate:1 1 UDP 2130706431 52.112.19.158 49360 typ srflx raddr 10.0.136.8 rport 49360
a=candidate:1 2 UDP 2130705918 52.112.19.158 49361 typ srflx raddr 10.0.136.8 rport 49361
a=candidate:2 1 tcp-act 2121006078 52.112.19.158 49152 typ srflx raddr 10.0.136.8 rport 49152
a=candidate:2 2 tcp-act 2121006078 52.112.19.158 49152 typ srflx raddr 10.0.136.8 rport 49152
a=label:main-audio
a=mid:1
a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:PaVlOomzudnnj34hLpDC8v/T5CRlZ/AWApwRnw8q|2^31
a=sendrecv
a=rtpmap:8 PCMA/8000
a=ptime:20
||||||||||||||||||||
====================
tag: snd
pid: 92891
process: 31
time: 1611139152.980594
date: Wed Jan 20 10:39:12 2021
proto: udp ipv4
srcip: 69.172.96.197
srcport: 5060
dstip: 185.132.68.116
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
SIP/2.0 200 OK
FROM: "Davide Zanichelli"<sip:3454558075@kml.call2teams.io>;tag=jFD3trFDj8t0p
TO: <sip:+1010@sip.pstnhub.microsoft.com:5061;user=phonekml.call2teams.io>;tag=5ec9692a0e334203ac38ef8afd16122a
CSEQ: 31015783 INVITE
CALL-ID: 92665309-d5ae-1239-fc81-9259e6a86632
VIA: SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;branch=z9hG4bKK8jFBBUtt1ZtH;rport=5060
CONTENT-LENGTH: 648
SUPPORTED: timer
CONTENT-TYPE: application/sdp
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SESSION-EXPIRES: 3600;refresher=uas
SERVER: Microsoft.PSTNHub.SIPProxy v.2021.1.15.7 i.EUWE.6

v=0
o=- 265741 1 IN IP4 127.0.0.1
s=session
c=IN IP4 69.172.96.197
b=CT:10000000
t=0 0
m=audio 33412 RTP/AVP 8
c=IN IP4 69.172.96.197
a=ice-ufrag:JH2Q
a=ice-pwd:CZ+sIID/PcZ5VAKCaAtelE77
a=candidate:1 1 UDP 2130706431 52.112.19.158 49360 typ srflx raddr 10.0.136.8 rport 49360
a=candidate:1 2 UDP 2130705918 52.112.19.158 49361 typ srflx raddr 10.0.136.8 rport 49361
a=candidate:2 1 tcp-act 2121006078 52.112.19.158 49152 typ srflx raddr 10.0.136.8 rport 49152
a=candidate:2 2 tcp-act 2121006078 52.112.19.158 49152 typ srflx raddr 10.0.136.8 rport 49152
a=label:main-audio
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:33413
a=ptime:20
||||||||||||||||||||
====================
tag: rcv
pid: 92863
process: 3
time: 1611139152.992585
date: Wed Jan 20 10:39:12 2021
proto: udp ipv4
srcip: 185.132.68.116
srcport: 5060
dstip: 69.172.96.197
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
ACK sip:100247@69.172.96.197:5060 SIP/2.0
v:SIP/2.0/UDP 185.132.68.116;rport;branch=z9hG4bK454Scy5SQDyHH
Max-Forwards:70
f:"Davide Zanichelli"<sip:3454558075@185.132.68.116>;tag=jFD3trFDj8t0p
t:<sip:100247@69.172.96.197:5060>;tag=5ec9692a0e334203ac38ef8afd16122a
i:92665309-d5ae-1239-fc81-9259e6a86632
CSeq:31015783 ACK
m:<sip:mod_sofia@185.132.68.116:5060>
l:0

||||||||||||||||||||
====================
tag: snd
pid: 92863
process: 3
time: 1611139152.993999
date: Wed Jan 20 10:39:12 2021
proto: tls ipv4
srcip: 69.172.96.197
srcport: 5061
dstip: 52.114.75.24
dstport: 5061
~~~~~~~~~~~~~~~~~~~~
ACK sip:+1010@sip.pstnhub.microsoft.com:5061;transport=tls SIP/2.0
Via: SIP/2.0/TLS 69.172.96.197:5061;branch=z9hG4bK7d7f.5ae826cce17cd04bb8eb821104f3c694.0
v:SIP/2.0/UDP 185.132.68.116;received=185.132.68.116;rport=5060;branch=z9hG4bK454Scy5SQDyHH
Max-Forwards:69
f:"Davide Zanichelli"<sip:3454558075@185.132.68.116>;tag=jFD3trFDj8t0p
t:<sip:+1010@sip.pstnhub.microsoft.com:5061;user=phone>;tag=5ec9692a0e334203ac38ef8afd16122a
i:92665309-d5ae-1239-fc81-9259e6a86632
CSeq:31015783 ACK
m:<sip:mod_sofia@185.132.68.116:5060>
l:0

||||||||||||||||||||
====================
tag: rcv
pid: 92864
process: 4
time: 1611139159.013347
date: Wed Jan 20 10:39:19 2021
proto: udp ipv4
srcip: 185.132.68.116
srcport: 5060
dstip: 69.172.96.197
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
BYE sip:100247@69.172.96.197:5060 SIP/2.0
v:SIP/2.0/UDP 185.132.68.116;rport;branch=z9hG4bKDXygHvZyjcvZS
Max-Forwards:70
f:"Davide Zanichelli"<sip:3454558075@185.132.68.116>;tag=jFD3trFDj8t0p
t:<sip:100247@69.172.96.197:5060>;tag=5ec9692a0e334203ac38ef8afd16122a
i:92665309-d5ae-1239-fc81-9259e6a86632
CSeq:31015784 BYE
User-Agent:FreeSWITCH-mod_sofia/1.6.20~64bit
Allow:INVITE,ACK,BYE,CANCEL,OPTIONS,MESSAGE,INFO,UPDATE,REGISTER,REFER,PRACK,NOTIFY,PUBLISH,SUBSCRIBE
k:precondition,100rel,path,replaces
Reason:Q.850;cause=16;text="NORMAL_CLEARING"
l:0

||||||||||||||||||||
====================
tag: rcv
pid: 92867
process: 7
time: 1611139160.013043
date: Wed Jan 20 10:39:20 2021
proto: udp ipv4
srcip: 185.132.68.116
srcport: 5060
dstip: 69.172.96.197
dstport: 5060
~~~~~~~~~~~~~~~~~~~~
BYE sip:100247@69.172.96.197:5060 SIP/2.0
v:SIP/2.0/UDP 185.132.68.116;rport;branch=z9hG4bKDXygHvZyjcvZS
Max-Forwards:70
f:"Davide Zanichelli"<sip:3454558075@185.132.68.116>;tag=jFD3trFDj8t0p
t:<sip:100247@69.172.96.197:5060>;tag=5ec9692a0e334203ac38ef8afd16122a
i:92665309-d5ae-1239-fc81-9259e6a86632
CSeq:31015784 BYE
User-Agent:FreeSWITCH-mod_sofia/1.6.20~64bit
Allow:INVITE,ACK,BYE,CANCEL,OPTIONS,MESSAGE,INFO,UPDATE,REGISTER,REFER,PRACK,NOTIFY,PUBLISH,SUBSCRIBE
k:precondition,100rel,path,replaces
Reason:Q.850;cause=16;text="NORMAL_CLEARING"
l:0

||||||||||||||||||||