U 2015/06/25 15:40:09.095946 99.12.125.162:5060 -> 2.43.7.157:5060

INVITE sip:500@3.local SIP/2.0.
CSeq: 1 INVITE.
Via: SIP/2.0/UDP 192.168.16.120:5060;branch=z9hG4bKb0421938-f90f-1910-9836-8851fb4369e9;rport.
User-Agent: Ekiga/4.0.2.
From: "TEST" <sip:1000@3.local>;tag=643e1938-f90f-1910-9834-8851fb4369e9.
Call-ID: 643e1938-f90f-1910-9835-8851fb4369e9@EV.
Supported: 100rel,replaces.
To: <sip:500@3.local>.
Contact: "TEST" <sip:ekiga@192.168.16.120>.
Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,SUBSCRIBE,NOTIFY,REFER,MESSAGE,INFO,PING,PRACK.
Content-Length: 256.
Content-Type: application/sdp.
Max-Forwards: 70.
.
v=0.
o=- 1435261202 1 IN IP4 192.168.16.120.
s=Ekiga/4.0.2.
c=IN IP4 192.168.16.120.
t=0 0.
m=audio 5082 RTP/AVP 0 8 101.
a=sendrecv.
a=rtpmap:0 PCMU/8000/1.
a=rtpmap:8 PCMA/8000/1.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16,32,36.
a=maxptime:240.


U 2015/06/25 15:40:09.098884 2.43.7.157:5060 -> 99.12.125.162:5060

SIP/2.0 100 trying -- your call is important to us.
CSeq: 1 INVITE.
Via: SIP/2.0/UDP 192.168.16.120:5060;branch=z9hG4bKb0421938-f90f-1910-9836-8851fb4369e9;rport=5060;received=99.12.125.162.
From: "TEST" <sip:1000@3.local>;tag=643e1938-f90f-1910-9834-8851fb4369e9.
Call-ID: 643e1938-f90f-1910-9835-8851fb4369e9@EV.
To: <sip:500@3.local>.
Server: kamailio (4.4.0-dev1 (x86_64/linux)).
Content-Length: 0.
.


U 2015/06/25 15:40:09.115025 2.43.7.157:5060 -> 99.12.125.162:5060

SIP/2.0 200 OK.
Via: SIP/2.0/UDP 192.168.16.120:5060;received=99.12.125.162;branch=z9hG4bKb0421938-f90f-1910-9836-8851fb4369e9;rport=5060.
Record-Route: <sip:2.43.7.157;lr;ftag=643e1938-f90f-1910-9834-8851fb4369e9;nat=yes>.
From: "TEST" <sip:1000@3.local>;tag=643e1938-f90f-1910-9834-8851fb4369e9.
To: <sip:500@3.local>;tag=5cF0vyUt2KQSH.
Call-ID: 643e1938-f90f-1910-9835-8851fb4369e9@EV.
CSeq: 1 INVITE.
Contact: <sip:500@192.168.0.11:5060;transport=udp>.
User-Agent: FreeSWITCH-mod_sofia/1.7.0+git~20150611T050046Z~67ed8f4260~64bit.
Accept: application/sdp.
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE.
Supported: timer, path, replaces.
Allow-Events: talk, hold, conference, presence, as-feature-event, dialog, line-seize, call-info, sla, include-session-description, presence.winfo, message-summary, refer.
Content-Type: application/sdp.
Content-Disposition: session.
Content-Length: 240.
Remote-Party-ID: "500" <sip:500@3.local>;party=calling;privacy=off;screen=no.
.
v=0.
o=FreeSWITCH 1435241875 1435241876 IN IP4 2.43.7.157.
s=FreeSWITCH.
c=IN IP4 2.43.7.157.
t=0 0.
m=audio 35522 RTP/AVP 0 101.
a=rtpmap:0 PCMU/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=ptime:20.
a=nortpproxy:yes.


U 2015/06/25 15:40:09.125027 99.12.125.162:5060 -> 2.43.7.157:5060

ACK sip:500@192.168.0.11:5060;transport=udp SIP/2.0.
Route: <sip:2.43.7.157;lr;nat=yes;ftag=643e1938-f90f-1910-9834-8851fb4369e9>.
CSeq: 1 ACK.
Via: SIP/2.0/UDP 192.168.16.120:5060;branch=z9hG4bK304f1938-f90f-1910-9836-8851fb4369e9;rport.
From: "TEST" <sip:1000@3.local>;tag=643e1938-f90f-1910-9834-8851fb4369e9.
Call-ID: 643e1938-f90f-1910-9835-8851fb4369e9@EV.
To: <sip:500@3.local>;tag=5cF0vyUt2KQSH.
Contact: "TEST" <sip:ekiga@192.168.16.120>.
Content-Length: 0.
Max-Forwards: 70.
.