2017/07/27 08:36:35.398793 192.168.0.137:5060 -> 174.46.235.6:18467
SIP/2.0 200 OK
Via: SIP/2.0/TCP 10.34.77.5:50847;branch=z9hG4bK-373339-789728bb62a17446a5743d4eff81cc7c;received=174.46.235.6;rport=18467
From: "2601" <sip:2601@internal.example.com>;tag=a998648a
To: <sip:4000@internal.example.com>;tag=e4H3225tZ1r5p
Call-ID: 448dcabe1bd964f655dca23e98b77185@0:0:0:0:0:0:0:0
CSeq: 2 INVITE
Contact: <sip:4000@70.173.249.54:5060;transport=tcp>
User-Agent: FreeSWITCH-mod_sofia/1.9.0+git~20170721T204132Z~f1ae0b3841~32bit
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
Session-Expires: 120;refresher=uas
Content-Type: application/sdp
Content-Disposition: session
Content-Length: 333
Remote-Party-ID: "4000" <sip:4000@internal.example.com>;party=calling;privacy=off;screen=no

v=0
o=FreeSWITCH 1501139467 1501139468 IN IP4 70.173.249.54
s=FreeSWITCH
c=IN IP4 70.173.249.54
t=0 0
m=audio 30328 RTP/AVP 96 101
a=rtpmap:96 opus/48000/2
a=fmtp:96 useinbandfec=1; usedtx=1; maxaveragebitrate=48000; maxplaybackrate=48000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
m=video 0 RTP/AVP 19