webRTC invite

 {"type":"offer","sdp":"v=0\r\no=Mozilla-SIPUA-22.0 18036 0 IN IP4 0.0.0.0\r\ns=SIP Call\r\nt=0 0\r\na=ice-ufrag:1e99be43\r\na=ice-pwd:e871f2aee8e5dae263fcff78954cacfd\r\na=fingerprint:sha-256 B3:BA:E9:18:79:71:31:B5:64:BA:D0:EB:9E:1F:0F:B1:F9:DD:8B:A3:70:13:33:23:85:7C:5C:E1:8E:E7:D0:52\r\nm=audio 46810 RTP/SAVPF 109 0 8 101\r\nc=IN IP4 41.139.240.230\r\na=rtpmap:109 opus/48000/2\r\na=ptime:20\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:101 telephone-event/8000\r\na=fmtp:101 0-15\r\na=sendrecv\r\na=candidate:0 1 UDP 2111832319 10.2.13.22 43291 typ host\r\na=candidate:1 1 UDP 1692442623 41.139.240.230 46809 typ srflx raddr 10.2.13.22 rport 43291\r\na=candidate:2 1 UDP 2112422143 192.168.122.1 56879 typ host\r\na=candidate:3 1 UDP 1693032447 41.139.240.230 46810 typ srflx raddr 192.168.122.1 rport 56879\r\na=candidate:0 2 UDP 2111832318 10.2.13.22 35684 typ host\r\na=candidate:1 2 UDP 1692442622 41.139.240.230 46811 typ srflx raddr 10.2.13.22 rport 35684\r\na=candidate:2 2 UDP 2112422142 192.168.122.1 49852 typ host\r\na=candidate:3 2 UDP 1693032446 41.139.240.230 46812 typ srflx raddr 192.168.122.1 rport 49852\r\nm=application 46814 SCTP/DTLS 5000 \r\nc=IN IP4 41.139.240.230\r\na=fmtp:5000 protocol=webrtc-datachannel;streams=16\r\na=sendrecv\r\na=candidate:0 1 UDP 2111832319 10.2.13.22 37408 typ host\r\na=candidate:1 1 UDP 1692442623 41.139.240.230 46813 typ srflx raddr 10.2.13.22 rport 37408\r\na=candidate:2 1 UDP 2112422143 192.168.122.1 54516 typ host\r\na=candidate:3 1 UDP 1693032447 41.139.240.230 46814 typ srflx raddr 192.168.122.1 rport 54516\r\na=candidate:0 2 UDP 2111832318 10.2.13.22 49682 typ host\r\na=candidate:1 2 UDP 1692442622 41.139.240.230 46815 typ srflx raddr 10.2.13.22 rport 49682\r\na=candidate:2 2 UDP 2112422142 192.168.122.1 48666 typ host\r\na=candidate:3 2 UDP 1693032446 41.139.240.230 46816 typ srflx raddr 192.168.122.1 rport 48666\r\n"}