Call {"type":"offer","sdp":"v=0\r\no=mozilla...THIS_IS_SDPARTA-99.0 5663727977350055255 0 IN IP4 0.0.0.0\r\ns=-\r\nt=0 0\r\na=sendrecv\r\na=fingerprint:sha-256 DF:63:9B:18:EA:E5:CB:44:1B:70:CD:27:71:45:53:05:F6:24:7E:9A:1F:A6:23:E7:1A:8D:BC:E4:E6:1F:3B:56\r\na=group:BUNDLE 0 1\r\na=ice-options:trickle\r\na=msid-semantic:WMS *\r\nm=audio 52998 UDP/TLS/RTP/SAVPF 109 9 0 8 101\r\nc=IN IP4 192.168.1.2\r\na=candidate:0 1 UDP 2122252543 192.168.1.2 52998 typ host\r\na=candidate:1 1 TCP 2105524479 192.168.1.2 9 typ host tcptype active\r\na=candidate:0 2 UDP 2122252542 192.168.1.2 52999 typ host\r\na=candidate:1 2 TCP 2105524478 192.168.1.2 9 typ host tcptype active\r\na=sendrecv\r\na=end-of-candidates\r\na=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\na=extmap:2/recvonly urn:ietf:params:rtp-hdrext:csrc-audio-level\r\na=extmap:3 urn:ietf:params:rtp-hdrext:sdes:mid\r\na=fmtp:109 maxplaybackrate=48000;stereo=1;useinbandfec=1\r\na=fmtp:101 0-15\r\na=ice-pwd:1b89abd6c5f507ddd3769a47b9db6899\r\na=ice-ufrag:72d0dcd2\r\na=mid:0\r\na=msid:{40bb9c96-3693-46f5-9500-d5fe84da15b7} {e199ee20-6f2f-4a33-a51a-bfb7896cca81}\r\na=rtcp:52999 IN IP4 192.168.1.2\r\na=rtcp-mux\r\na=rtpmap:109 opus/48000/2\r\na=rtpmap:9 G722/8000/1\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:101 telephone-event/8000\r\na=setup:actpass\r\na=ssrc:3374636923 cname:{44a3944c-f8eb-42db-bcbd-135479cf479d}\r\nm=video 53000 UDP/TLS/RTP/SAVPF 120 124 121 125 126 127 97 98 123 122 119\r\nc=IN IP4 192.168.1.2\r\na=candidate:0 1 UDP 2122252543 192.168.1.2 53000 typ host\r\na=candidate:1 1 TCP 2105524479 192.168.1.2 9 typ host tcptype active\r\na=candidate:0 2 UDP 2122252542 192.168.1.2 53001 typ host\r\na=candidate:1 2 TCP 2105524478 192.168.1.2 9 typ host tcptype active\r\na=sendrecv\r\na=end-of-candidates\r\na=extmap:3 urn:ietf:params:rtp-hdrext:sdes:mid\r\na=extmap:4 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\na=extmap:5 urn:ietf:params:rtp-hdrext:toffset\r\na=extmap:6/recvonly http://www.webrtc.org/experiments/rtp-hdrext/playout-delay\r\na=extmap:7 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\na=fmtp:126 profile-level-id=42e01f;level-asymmetry-allowed=1;packetization-mode=1\r\na=fmtp:97 profile-level-id=42e01f;level-asymmetry-allowed=1\r\na=fmtp:120 max-fs=12288;max-fr=60\r\na=fmtp:124 apt=120\r\na=fmtp:121 max-fs=12288;max-fr=60\r\na=fmtp:125 apt=121\r\na=fmtp:127 apt=126\r\na=fmtp:98 apt=97\r\na=fmtp:119 apt=122\r\na=ice-pwd:1b89abd6c5f507ddd3769a47b9db6899\r\na=ice-ufrag:72d0dcd2\r\na=mid:1\r\na=msid:{40bb9c96-3693-46f5-9500-d5fe84da15b7} {b588547c-094d-46ed-bff6-80ea53361695}\r\na=rtcp:53001 IN IP4 192.168.1.2\r\na=rtcp-fb:120 nack\r\na=rtcp-fb:120 nack pli\r\na=rtcp-fb:120 ccm fir\r\na=rtcp-fb:120 goog-remb\r\na=rtcp-fb:120 transport-cc\r\na=rtcp-fb:121 nack\r\na=rtcp-fb:121 nack pli\r\na=rtcp-fb:121 ccm fir\r\na=rtcp-fb:121 goog-remb\r\na=rtcp-fb:121 transport-cc\r\na=rtcp-fb:126 nack\r\na=rtcp-fb:126 nack pli\r\na=rtcp-fb:126 ccm fir\r\na=rtcp-fb:126 goog-remb\r\na=rtcp-fb:126 transport-cc\r\na=rtcp-fb:97 nack\r\na=rtcp-fb:97 nack pli\r\na=rtcp-fb:97 ccm fir\r\na=rtcp-fb:97 goog-remb\r\na=rtcp-fb:97 transport-cc\r\na=rtcp-fb:123 nack\r\na=rtcp-fb:123 nack pli\r\na=rtcp-fb:123 ccm fir\r\na=rtcp-fb:123 goog-remb\r\na=rtcp-fb:123 transport-cc\r\na=rtcp-fb:122 nack\r\na=rtcp-fb:122 nack pli\r\na=rtcp-fb:122 ccm fir\r\na=rtcp-fb:122 goog-remb\r\na=rtcp-fb:122 transport-cc\r\na=rtcp-mux\r\na=rtcp-rsize\r\na=rtpmap:120 VP8/90000\r\na=rtpmap:124 rtx/90000\r\na=rtpmap:121 VP9/90000\r\na=rtpmap:125 rtx/90000\r\na=rtpmap:126 H264/90000\r\na=rtpmap:127 rtx/90000\r\na=rtpmap:97 H264/90000\r\na=rtpmap:98 rtx/90000\r\na=rtpmap:123 ulpfec/90000\r\na=rtpmap:122 red/90000\r\na=rtpmap:119 rtx/90000\r\na=setup:actpass\r\na=ssrc:3577026909 cname:{44a3944c-f8eb-42db-bcbd-135479cf479d}\r\na=ssrc:1514929030 cname:{44a3944c-f8eb-42db-bcbd-135479cf479d}\r\na=ssrc-group:FID 3577026909 1514929030\r\n"} Answer