First-Invite

2017/04/25 09:34:24.268105 ip.101:5061 -> ip.201:5060
INVITE sip:10213129113423@ip.201 SIP/2.0
Record-Route: <sip:ip.101:5061;lr;ftag=5f360f67;did=d98.9ed;vsf=AAAAAAgNBQMDAgEHBgFzNEJMTVdCFkBSWlZDXC5jb20udHI7dHJhbnNwb3J0PVVE
--;vst=AAAAAAAAAAAAAAAAAAAARUtBVkFCAFlLRVdCbS5jb20udHI7dHJhbnNwb3J0PVVEUA-->
Record-Route: <sip:ip.189;lr;ftag=5f360f67>
Via: SIP/2.0/UDP ip.101:5061;branch=z9hG4bK1d8c.88772995badbe28b84a4ee004b5498b5.0
Via: SIP/2.0/UDP ip.189;rport=5060;branch=z9hG4bK1d8c.ed6a63f1fdd78030443dacfd1bd89bf1.0
Via: SIP/2.0/UDP ip.223:39218;received=192.168.0.223;branch=z9hG4bK-524287-1---3b8d4573e440d029;rport=39218
Max-Forwards: 68
Contact: <sip:8503023423@192.168.0.223:39218;transport=UDP>
To: <sip:3129113423@ip.101>
From: 08503023423<sip:08503023423@ip.101>;tag=5f360f67
Call-ID: cOxwnRxlzndbO5NfmWC9_Q..
CSeq: 2 INVITE
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE
Content-Type: application/sdp
Supported: replaces, norefersub, extended-refer, timer, outbound, path, X-cisco-serviceuri
User-Agent: Z 3.9.32144 r32121
Allow-Events: presence, kpml
Content-Length: 109

v=0
o=Z 0 0 IN IP4 192.168.0.223
s=Z
c=IN IP4 192.168.0.223
t=0 0
m=audio 8000 RTP/AVP 8 0
a=sendrecv




Re-invite 

2017/04/25 09:34:26.043249 ip.201:5060 -> ip.101:5061
INVITE sip:8503023423@ip.223:39218;transport=UDP SIP/2.0
Via: SIP/2.0/UDP ip.201:5060;rport;branch=z9hG4bKPj955ac31c-572e-4123-9aa5-8d3168894d91
From: <sip:10213129113423@ip.201>;tag=b6aa271e-3608-40a5-b824-e10fe91bb801
To: "08503023423" <sip:08503023423@ip.101>;tag=5f360f67
Contact: <sip:ip.201:5060>
Call-ID: cOxwnRxlzndbO5NfmWC9_Q..
CSeq: 19030 INVITE
Route: <sip:ip.101:5061;lr;ftag=5f360f67;did=d98.9ed;vsf=AAAAAAgNBQMDAgEHBgFzNEJMTVdCFkBSWlZDXC5jb20udHI7dHJhbnNwb3J0PVVEUA--;vs
AAAAAAAAAAAAAAAAAAAARUtBVkFCAFlLRVdCbS5jb20udHI7dHJhbnNwb3J0PVVEUA-->
Route: <sip:ip.189;lr;ftag=5f360f67>
Allow: OPTIONS, SUBSCRIBE, NOTIFY, PUBLISH, INVITE, ACK, BYE, CANCEL, UPDATE, PRACK, REGISTER, REFER, MESSAGE
Supported: 100rel, timer, replaces, norefersub
Session-Expires: 1800
Min-SE: 90
Max-Forwards: 30
User-Agent: Dis-201
Content-Type: application/sdp
Content-Length:   243

v=0
o=- 0 3 IN IP4 ip.201
s=Asterisk
c=IN IP4 ip.201
t=0 0
m=audio 10454 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=maxptime:150
a=sendrecv