INVITE sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d SIP/2.0
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK69acdd47;rport
Max-Forwards: 70
From: "7201 Rusinov test" <sip:7201@10.11.200.21>;tag=as2d504a32
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>
Contact: <sip:7201@10.11.200.21:5060>
Call-ID: 443897863efad66d2480a7a277e0a213@10.11.200.21:5060
CSeq: 102 INVITE
User-Agent: FPBX-2.11.0(11.21.0)
Date: Thu, 25 Feb 2016 11:40:17 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 281

v=0
o=root 733295872 733295872 IN IP4 10.11.200.21
s=Asterisk PBX 11.21.0
c=IN IP4 10.11.200.21
t=0 0
m=audio 15426 RTP/AVP 8 3 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:3 GSM/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv

INVITE sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d SIP/2.0
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK69acdd47;rport
Max-Forwards: 70
From: "7201 Rusinov test" <sip:7201@10.11.200.21>;tag=as2d504a32
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>
Contact: <sip:7201@10.11.200.21:5060>
Call-ID: 443897863efad66d2480a7a277e0a213@10.11.200.21:5060
CSeq: 102 INVITE
User-Agent: FPBX-2.11.0(11.21.0)
Date: Thu, 25 Feb 2016 11:40:17 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Type: application/sdp
Content-Length: 281

v=0
o=root 733295872 733295872 IN IP4 10.11.200.21
s=Asterisk PBX 11.21.0
c=IN IP4 10.11.200.21
t=0 0
m=audio 15426 RTP/AVP 8 3 0 101
a=rtpmap:8 PCMA/8000
a=rtpmap:3 GSM/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv

SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK69acdd47;rport=5060;received=my_ip
Contact: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>;tag=cc508549
From: "7201 Rusinov test"<sip:7201@10.11.200.21>;tag=as2d504a32
Call-ID: 443897863efad66d2480a7a277e0a213@10.11.200.21:5060
CSeq: 102 INVITE
User-Agent: X-Lite release 1011s stamp 41150
Content-Length: 0

SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK69acdd47;rport=5060;received=my_ip
Contact: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>;tag=cc508549
From: "7201 Rusinov test"<sip:7201@10.11.200.21>;tag=as2d504a32
Call-ID: 443897863efad66d2480a7a277e0a213@10.11.200.21:5060
CSeq: 102 INVITE
User-Agent: X-Lite release 1011s stamp 41150
Content-Length: 0

SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK69acdd47;rport=5060;received=my_ip
Contact: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>;tag=cc508549
From: "7201 Rusinov test"<sip:7201@10.11.200.21>;tag=as2d504a32
Call-ID: 443897863efad66d2480a7a277e0a213@10.11.200.21:5060
CSeq: 102 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO
Content-Type: application/sdp
User-Agent: X-Lite release 1011s stamp 41150
Content-Length: 187

v=0
o=- 7 2 IN IP4 192.168.1.244
s=CounterPath X-Lite 3.0
c=IN IP4 192.168.1.244
t=0 0
m=audio 31470 RTP/AVP 8 0 101
a=fmtp:101 0-15
a=rtpmap:101 telephone-event/8000
a=sendrecv

ACK sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d SIP/2.0
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK58df6f76;rport
Max-Forwards: 70
From: "7201 Rusinov test" <sip:7201@10.11.200.21>;tag=as2d504a32
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>;tag=cc508549
Contact: <sip:7201@10.11.200.21:5060>
Call-ID: 443897863efad66d2480a7a277e0a213@10.11.200.21:5060
CSeq: 102 ACK
User-Agent: FPBX-2.11.0(11.21.0)
Content-Length: 0

BYE sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d SIP/2.0
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK127d66cc;rport
Max-Forwards: 70
From: "7201 Rusinov test" <sip:7201@10.11.200.21>;tag=as2d504a32
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>;tag=cc508549
Call-ID: 443897863efad66d2480a7a277e0a213@10.11.200.21:5060
CSeq: 103 BYE
User-Agent: FPBX-2.11.0(11.21.0)
X-Asterisk-HangupCause: Normal Clearing
X-Asterisk-HangupCauseCode: 16
Content-Length: 0

BYE sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d SIP/2.0
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK127d66cc;rport
Max-Forwards: 70
From: "7201 Rusinov test" <sip:7201@10.11.200.21>;tag=as2d504a32
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>;tag=cc508549
Call-ID: 443897863efad66d2480a7a277e0a213@10.11.200.21:5060
CSeq: 103 BYE
User-Agent: FPBX-2.11.0(11.21.0)
X-Asterisk-HangupCause: Normal Clearing
X-Asterisk-HangupCauseCode: 16
Content-Length: 0

SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK127d66cc;rport=5060;received=my_ip
Contact: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>;tag=cc508549
From: "7201 Rusinov test"<sip:7201@10.11.200.21>;tag=as2d504a32
Call-ID: 443897863efad66d2480a7a277e0a213@10.11.200.21:5060
CSeq: 103 BYE
User-Agent: X-Lite release 1011s stamp 41150
Content-Length: 0

SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK127d66cc;rport=5060;received=my_ip
Contact: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>;tag=cc508549
From: "7201 Rusinov test"<sip:7201@10.11.200.21>;tag=as2d504a32
Call-ID: 443897863efad66d2480a7a277e0a213@10.11.200.21:5060
CSeq: 103 BYE
User-Agent: X-Lite release 1011s stamp 41150
Content-Length: 0

OPTIONS sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d SIP/2.0
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK10fa42b3;rport
Max-Forwards: 70
From: "Unknown" <sip:Unknown@10.11.200.21>;tag=as600a4e91
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>
Contact: <sip:Unknown@10.11.200.21:5060>
Call-ID: 493bc08152bc525a389af53910b2990f@10.11.200.21:5060
CSeq: 102 OPTIONS
User-Agent: FPBX-2.11.0(11.21.0)
Date: Thu, 25 Feb 2016 11:40:23 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Length: 0

SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.11.200.21:5060;branch=z9hG4bK10fa42b3;rport=5060;received=my_ip
Contact: <sip:192.168.1.244:32806>
To: <sip:6533@178.75.2.195:32806;rinstance=b979890bda0fe01d>;tag=ad3f8e08
From: "Unknown"<sip:Unknown@10.11.200.21>;tag=as600a4e91
Call-ID: 493bc08152bc525a389af53910b2990f@10.11.200.21:5060
CSeq: 102 OPTIONS
Accept: application/sdp
Accept-Language: en
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO
User-Agent: X-Lite release 1011s stamp 41150
Content-Length: 0

INVITE sip:3366576@my_ip SIP/2.0
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-aa5db9490d06fa70-1--d87543-;rport
Max-Forwards: 70
Contact: <sip:6533@178.75.2.195:32806>
To: "3366576"<sip:3366576@my_ip>
From: "6533"<sip:6533@my_ip>;tag=9418704c
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 1 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO
Content-Type: application/sdp
User-Agent: X-Lite release 1011s stamp 41150
Content-Length: 474

v=0
o=- 4 2 IN IP4 192.168.1.244
s=CounterPath X-Lite 3.0
c=IN IP4 192.168.1.244
t=0 0
m=audio 44058 RTP/AVP 107 119 100 106 0 105 98 8 101
a=alt:1 2 : 8v6AOVV7 obLs/t4P 192.168.1.244 44058
a=alt:2 1 : HTEuT0xW qL/H3iJ3 192.168.3.244 44058
a=fmtp:101 0-15
a=rtpmap:107 BV32/16000
a=rtpmap:119 BV32-FEC/16000
a=rtpmap:100 SPEEX/16000
a=rtpmap:106 SPEEX-FEC/16000
a=rtpmap:105 SPEEX-FEC/8000
a=rtpmap:98 iLBC/8000
a=rtpmap:101 telephone-event/8000
a=sendrecv

SIP/2.0 401 Unauthorized
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-aa5db9490d06fa70-1--d87543-;received=178.75.2.195;rport=32806
From: "6533"<sip:6533@my_ip>;tag=9418704c
To: "3366576"<sip:3366576@my_ip>;tag=as722e3535
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 1 INVITE
Server: FPBX-2.11.0(11.21.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
WWW-Authenticate: Digest algorithm=MD5, realm="asterisk", nonce="4cff06fc"
Content-Length: 0

ACK sip:3366576@my_ip SIP/2.0
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-aa5db9490d06fa70-1--d87543-;rport
To: "3366576"<sip:3366576@my_ip>;tag=as722e3535
From: "6533"<sip:6533@my_ip>;tag=9418704c
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 1 ACK
Content-Length: 0

INVITE sip:3366576@my_ip SIP/2.0
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-590f8731104f9e2a-1--d87543-;rport
Max-Forwards: 70
Contact: <sip:6533@178.75.2.195:32806>
To: "3366576"<sip:3366576@my_ip>
From: "6533"<sip:6533@my_ip>;tag=9418704c
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 2 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO
Content-Type: application/sdp
User-Agent: X-Lite release 1011s stamp 41150
Authorization: Digest username="6533",realm="asterisk",nonce="4cff06fc",uri="sip:3366576@my_ip",response="80c1af9baadfc52effca0afa09054d1b",algorithm=MD5
Content-Length: 474

v=0
o=- 4 2 IN IP4 192.168.1.244
s=CounterPath X-Lite 3.0
c=IN IP4 192.168.1.244
t=0 0
m=audio 44058 RTP/AVP 107 119 100 106 0 105 98 8 101
a=alt:1 2 : 8v6AOVV7 obLs/t4P 192.168.1.244 44058
a=alt:2 1 : HTEuT0xW qL/H3iJ3 192.168.3.244 44058
a=fmtp:101 0-15
a=rtpmap:107 BV32/16000
a=rtpmap:119 BV32-FEC/16000
a=rtpmap:100 SPEEX/16000
a=rtpmap:106 SPEEX-FEC/16000
a=rtpmap:105 SPEEX-FEC/8000
a=rtpmap:98 iLBC/8000
a=rtpmap:101 telephone-event/8000
a=sendrecv

SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-590f8731104f9e2a-1--d87543-;received=178.75.2.195;rport=32806
From: "6533"<sip:6533@my_ip>;tag=9418704c
To: "3366576"<sip:3366576@my_ip>
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 2 INVITE
Server: FPBX-2.11.0(11.21.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Contact: <sip:3366576@10.11.200.21:5060>
Content-Length: 0

SIP/2.0 180 Ringing
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-590f8731104f9e2a-1--d87543-;received=178.75.2.195;rport=32806
From: "6533"<sip:6533@my_ip>;tag=9418704c
To: "3366576"<sip:3366576@my_ip>;tag=as4c8d16a7
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 2 INVITE
Server: FPBX-2.11.0(11.21.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Contact: <sip:3366576@10.11.200.21:5060>
Content-Length: 0

SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-590f8731104f9e2a-1--d87543-;received=178.75.2.195;rport=32806
From: "6533"<sip:6533@my_ip>;tag=9418704c
To: "3366576"<sip:3366576@my_ip>;tag=as4c8d16a7
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 2 INVITE
Server: FPBX-2.11.0(11.21.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Contact: <sip:3366576@10.11.200.21:5060>
Content-Type: application/sdp
Content-Length: 258

v=0
o=root 298904040 298904040 IN IP4 10.11.200.21
s=Asterisk PBX 11.21.0
c=IN IP4 10.11.200.21
t=0 0
m=audio 15204 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

SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-590f8731104f9e2a-1--d87543-;received=178.75.2.195;rport=32806
From: "6533"<sip:6533@my_ip>;tag=9418704c
To: "3366576"<sip:3366576@my_ip>;tag=as4c8d16a7
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 2 INVITE
Server: FPBX-2.11.0(11.21.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Contact: <sip:3366576@10.11.200.21:5060>
Content-Type: application/sdp
Content-Length: 258

v=0
o=root 298904040 298904040 IN IP4 10.11.200.21
s=Asterisk PBX 11.21.0
c=IN IP4 10.11.200.21
t=0 0
m=audio 15204 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

SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-590f8731104f9e2a-1--d87543-;received=178.75.2.195;rport=32806
From: "6533"<sip:6533@my_ip>;tag=9418704c
To: "3366576"<sip:3366576@my_ip>;tag=as4c8d16a7
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 2 INVITE
Server: FPBX-2.11.0(11.21.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Contact: <sip:3366576@10.11.200.21:5060>
Content-Type: application/sdp
Content-Length: 258

v=0
o=root 298904040 298904040 IN IP4 10.11.200.21
s=Asterisk PBX 11.21.0
c=IN IP4 10.11.200.21
t=0 0
m=audio 15204 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

SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-590f8731104f9e2a-1--d87543-;received=178.75.2.195;rport=32806
From: "6533"<sip:6533@my_ip>;tag=9418704c
To: "3366576"<sip:3366576@my_ip>;tag=as4c8d16a7
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 2 INVITE
Server: FPBX-2.11.0(11.21.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Contact: <sip:3366576@10.11.200.21:5060>
Content-Type: application/sdp
Content-Length: 258

v=0
o=root 298904040 298904040 IN IP4 10.11.200.21
s=Asterisk PBX 11.21.0
c=IN IP4 10.11.200.21
t=0 0
m=audio 15204 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
2Vc

SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-590f8731104f9e2a-1--d87543-;received=178.75.2.195;rport=32806
From: "6533"<sip:6533@my_ip>;tag=9418704c
To: "3366576"<sip:3366576@my_ip>;tag=as4c8d16a7
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 2 INVITE
Server: FPBX-2.11.0(11.21.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Contact: <sip:3366576@10.11.200.21:5060>
Content-Type: application/sdp
Content-Length: 258

v=0
o=root 298904040 298904040 IN IP4 10.11.200.21
s=Asterisk PBX 11.21.0
c=IN IP4 10.11.200.21
t=0 0
m=audio 15204 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

SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-590f8731104f9e2a-1--d87543-;received=178.75.2.195;rport=32806
From: "6533"<sip:6533@my_ip>;tag=9418704c
To: "3366576"<sip:3366576@my_ip>;tag=as4c8d16a7
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 2 INVITE
Server: FPBX-2.11.0(11.21.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Contact: <sip:3366576@10.11.200.21:5060>
Content-Type: application/sdp
Content-Length: 258

v=0
o=root 298904040 298904040 IN IP4 10.11.200.21
s=Asterisk PBX 11.21.0
c=IN IP4 10.11.200.21
t=0 0
m=audio 15204 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

SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.1.244:32806;branch=z9hG4bK-d87543-590f8731104f9e2a-1--d87543-;received=178.75.2.195;rport=32806
From: "6533"<sip:6533@my_ip>;tag=9418704c
To: "3366576"<sip:3366576@my_ip>;tag=as4c8d16a7
Call-ID: OTg3NWFlMGIyNzFlMzY0MDg0OTFjOGE1OTIxNjljMmI.
CSeq: 2 INVITE
Server: FPBX-2.11.0(11.21.0)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Contact: <sip:3366576@10.11.200.21:5060>
Content-Type: application/sdp
Content-Length: 258

v=0
o=root 298904040 298904040 IN IP4 10.11.200.21
s=Asterisk PBX 11.21.0
c=IN IP4 10.11.200.21
t=0 0
m=audio 15204 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
