recv 1074 bytes from udp/[172.26.88.11]:50347 at 16:52:49.271485:
   ------------------------------------------------------------------------
   SIP/2.0 200 OK
   Via: SIP/2.0/UDP 172.26.92.11;rport;branch=z9hG4bKK3QHtpjtX85Za
   From: "Ozzy Osbourne" <sip:FreeSWITCH@172.26.88.11>;tag=8DtUrrHyj6v9a
   To: <sip:*869996@172.26.88.11>;tag=27775044-D16
   Date: Thu, 07 Jul 2016 19:52:48 GMT
   Call-ID: 38f4adcd-bf1f-1234-8e92-e41f13647798
   CSeq: 93624520 INVITE
   Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
   Allow-Events: telephone-event
   Remote-Party-ID: "VoiceMail" <sip:69996@172.26.88.11>;party=called;screen=yes;privacy=off
   Contact: <sip:*869996@172.26.88.11:5060>
   Supported: replaces
   Supported: sdp-anat
   Server: Cisco-SIPGateway/IOS-15.4.3.M3
   Session-Expires:  1800;refresher=uas
   Require: timer
   Supported: timer
   Content-Type: application/sdp
   Content-Disposition: session;handling=required
   Content-Length: 247
   
   v=0
   o=CiscoSystemsSIP-GW-UserAgent 2515 5070 IN IP4 172.26.88.11
   s=SIP Call
   c=IN IP4 172.26.88.11
   t=0 0
   m=audio 23648 RTP/AVP 0 101
   c=IN IP4 172.26.88.11
   a=rtpmap:0 PCMU/8000
   a=rtpmap:101 telephone-event/8000
   a=fmtp:101 0-16
   a=ptime:20
   ------------------------------------------------------------------------