INVITE sip:address@hidden SIP/2.0
   Via: SIP/2.0/TCP PRIVATE-IP:56860;branch=z9hG4bK.Vw7XGF-nC;rport
   From: <sip:address@hidden>;tag=17NnH56NU
   To: sip:address@hidden
   CSeq: 21 INVITE
   Call-ID: siVp-L3YWG
   Max-Forwards: 70
   Supported: outbound
   Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, UPDATE
   Content-Type: application/sdp
   Content-Length: 748
   Contact: <sip:address@hidden:56860;transport=tcp>;+sip.instance="<urn:uuid:1d566c88-6be1-4d3e-9d82-6a5112261804>"
   User-Agent: LinphoneAndroid/2.4.0 (belle-sip/1.4.0)
   Proxy-Authorization:  Digest realm="sip.bunnykick.ca", nonce="cde8e6d5-ff30-4cc4-9604-97a1f2bf3ef2", algorithm=MD5, username="rtreleaven",  uri="sip:address@hidden", response="44223144e2417a7bc19fbfaa8c7d6cf0", cnonce="faaaebb5", nc=00000001, qop=auth
   
   v=0
   o=rtreleaven 3655 1753 IN IP4 PRIVATE-IP
   s=Talk
   c=IN IP4 PRIVATE-IP
   b=AS:380
   t=0 0
   a=ice-pwd:dbcee063efb0fc3a20d23fea
   a=ice-ufrag:cb0d7e5e
   a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics
   m=audio 7076 RTP/AVP 96 0 8 9 101 97
   c=IN IP4 PUBLIC-IP
   a=rtpmap:96 opus/48000/2
   a=fmtp:96 useinbandfec=1; stereo=0; sprop-stereo=0
   a=rtpmap:101 telephone-event/48000
   a=rtpmap:97 telephone-event/8000
   a=candidate:1 1 UDP 2130706431 PRIVATE-IP 7076 typ host
   a=candidate:1 2 UDP 2130706430 PRIVATE-IP 7077 typ host
   a=candidate:2 1 UDP 1694498815 PUBLIC-IP 7076 typ srflx raddr PRIVATE-IP rport 7076
   a=candidate:2 2 UDP 1694498814 PUBLIC-IP 7077 typ srflx raddr PRIVATE-IP rport 7077