title: can't add Remote session description in webrtc android client
body: <p><strong>Response from server:</strong>   </p>
  
  <pre><code>{
      "rtcid": "wKAm8eeyI-mQ5dsslkhu",
      "msgType": "offer",
      "senderrtcid": "53wp_LP5CYDie3eIlkhw",
      "msgData": {
          "type": "offer",
          "sdp": "v=0\r\no=- 951920257545056255 2 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\na=group:BUNDLE audio video\r\na=msid-semantic: WMS OfkjcHABgxUkHlk8mfJ8ayYZdCHqdpQGFSTM\r\nm=audio 1 RTP/SAVPF 111 103 104 0 8 106 105 13 126\r\nc=IN IP4 0.0.0.0\r\na=rtcp:1 IN IP4 0.0.0.0\r\na=ice-ufrag:CF4q+RW54gQVPaz0\r\na=ice-pwd:hEIbgX4MME6cPkZKGih7bjQM\r\na=ice-options:google-ice\r\na=fingerprint:sha-256 1E:7F:B8:BA:1A:8D:76:BE:A9:A5:A3:9D:59:3E:CC:BD:1B:90:7B:89:EF:F0:03:B3:9A:CA:9C:07:02:97:53:6F\r\na=setup:actpass\r\na=mid:audio\r\na=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\na=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\na=sendrecv\r\na=rtcp-mux\r\na=rtpmap:111 opus/48000/2\r\na=fmtp:111 minptime=10\r\na=rtpmap:103 ISAC/16000\r\na=rtpmap:104 ISAC/32000\r\na=rtpmap:0 PCMU/8000\r\na=rtpmap:8 PCMA/8000\r\na=rtpmap:106 CN/32000\r\na=rtpmap:105 CN/16000\r\na=rtpmap:13 CN/8000\r\na=rtpmap:126 telephone-event/8000\r\na=maxptime:60\r\na=ssrc:777379316 cname:Dl+cb/nGYCzEcTvH\r\na=ssrc:777379316 msid:OfkjcHABgxUkHlk8mfJ8ayYZdCHqdpQGFSTM 0937b040-5691-4ae3-b533-dd9ce82c4393\r\na=ssrc:777379316 mslabel:OfkjcHABgxUkHlk8mfJ8ayYZdCHqdpQGFSTM\r\na=ssrc:777379316 label:0937b040-5691-4ae3-b533-dd9ce82c4393\r\nm=video 1 RTP/SAVPF 100 116 117 96\r\nc=IN IP4 0.0.0.0\r\na=rtcp:1 IN IP4 0.0.0.0\r\na=ice-ufrag:CF4q+RW54gQVPaz0\r\na=ice-pwd:hEIbgX4MME6cPkZKGih7bjQM\r\na=ice-options:google-ice\r\na=fingerprint:sha-256 1E:7F:B8:BA:1A:8D:76:BE:A9:A5:A3:9D:59:3E:CC:BD:1B:90:7B:89:EF:F0:03:B3:9A:CA:9C:07:02:97:53:6F\r\na=setup:actpass\r\na=mid:video\r\na=extmap:2 urn:ietf:params:rtp-hdrext:toffset\r\na=extmap:3 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\na=sendrecv\r\na=rtcp-mux\r\na=rtpmap:100 VP8/90000\r\na=rtcp-fb:100 ccm fir\r\na=rtcp-fb:100 nack\r\na=rtcp-fb:100 nack pli\r\na=rtcp-fb:100 goog-remb\r\na=rtpmap:116 red/90000\r\na=rtpmap:117 ulpfec/90000\r\na=rtpmap:96 rtx/90000\r\na=fmtp:96 apt=100\r\na=ssrc-group:FID 187598656 415229902\r\na=ssrc:187598656 cname:Dl+cb/nGYCzEcTvH\r\na=ssrc:187598656 msid:OfkjcHABgxUkHlk8mfJ8ayYZdCHqdpQGFSTM 02ab4641-6cd5-43be-b0fe-9952585642bf\r\na=ssrc:187598656 mslabel:OfkjcHABgxUkHlk8mfJ8ayYZdCHqdpQGFSTM\r\na=ssrc:187598656 label:02ab4641-6cd5-43be-b0fe-9952585642bf\r\na=ssrc:415229902 cname:Dl+cb/nGYCzEcTvH\r\na=ssrc:415229902 msid:OfkjcHABgxUkHlk8mfJ8ayYZdCHqdpQGFSTM 02ab4641-6cd5-43be-b0fe-9952585642bf\r\na=ssrc:415229902 mslabel:OfkjcHABgxUkHlk8mfJ8ayYZdCHqdpQGFSTM\r\na=ssrc:415229902 label:02ab4641-6cd5-43be-b0fe-9952585642bf\r\n"
      },
      "serverTime": 1431342100822
  }
  </code></pre>
  
  <p><strong>Log</strong></p>
  
  <pre><code>libjingle: Ignored line: c=IN IP4 0.0.0.0
  libjingle: Error(transport.cc:97): Answerer must use either active or passive value for setup attribute.
  libjingle:Error(webrtcsession.cc:272): Failed to set remote answer sdp: Failed to push down transport description: Answerer must use either active or passive value for setup attribute.
  </code></pre>
  
  <p>**First I create offer and add localdescription then send it to server using emit and the server return callback contains remote sdp  **</p>
  
  <pre><code>    public void onCreateSuccess(SessionDescription arg0) {
  
  
          // TODO Auto-generated method stub
  
  
                try {
  
                      if(arg0.type.canonicalForm().equalsIgnoreCase("answer")){
                            peer.setRemoteDescription(this, sdp);
                      //  mListener.onAddRemoteStream(localMS, 0);
                      }
  
                      else{
                  payload = new JSONObject();
                  payload.put("type", arg0.type.canonicalForm());
                  Log.d("offer", arg0.type.canonicalForm().toString());
                  payload.put("sdp", arg0.description);
  
                      sendMessage("rtcsid", arg0.type.canonicalForm(), payload);
                    peer.setLocalDescription(this, arg0);
  
  
                 }
                } catch (JSONException e) {
                  e.printStackTrace();
              }
  </code></pre>
  
  <p><strong>IceCandidate:</strong></p>
  
  <pre><code>    public void onIceCandidate(IceCandidate arg0) {
          // TODO Auto-generated method stub
  
          Log.d("IceCandidate", arg0.toString());
           JSONObject payload = new JSONObject();
  
           try {
  
                  payload.put("type", arg0.sdpMLineIndex);
                  Log.d("sdpMLineIndex", Integer.toString(arg0.sdpMLineIndex));
                  payload.put("id", arg0.sdpMid);
                  Log.d("sdpMid",  arg0.sdpMid.toString());
                  payload.put("type", arg0.sdp);
                  Log.d("candidate",  arg0.sdp.toString());
                 sendMessage("easyrtcsid", "candidate", payload);
  
                if(peer.getRemoteDescription()!=null){
                  IceCandidate candidate = new IceCandidate(
                          arg0.sdpMid,
                          arg0.sdpMLineIndex,
                          arg0.sdp.toString()
                  );
                  peer.addIceCandidate(candidate);
                  }
  
              } catch (JSONException e) {
                  e.printStackTrace();
              }
  
  
      }
  </code></pre>
  
  <p><strong>Log of Candidate</strong></p>
  
  <pre><code>{
  05-11 14:59:28.495: I/libjingle(14672): Local and Remote descriptions must be applied to get SSL Role of the session.
  05-11 14:59:28.495: I/libjingle(14672): Transport: audio, allocating candidates
  05-11 14:59:28.495: D/IceGatheringChange(14672): GATHERING
  05-11 14:59:28.495: I/libjingle(14672): Transport: audio, allocating candidates
  05-11 14:59:28.495: D/IceGatheringChange(14672): GATHERING
  05-11 14:59:28.495: I/libjingle(14672): Transport: video, allocating candidates
  05-11 14:59:28.495: D/IceGatheringChange(14672): GATHERING
  05-11 14:59:28.495: I/libjingle(14672): Transport: video, allocating candidates
  05-11 14:59:28.495: D/IceGatheringChange(14672): GATHERING
  05-11 14:59:28.495: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Udp
  05-11 14:59:28.505: I/libjingle(14672): Jingle:Port[:1:0::Net[wlan0:10.0.0.0/8:Unknown]]: Port created
  05-11 14:59:28.505: I/libjingle(14672): AllocationSequence: UDPPort will be handling the STUN candidate generation.
  05-11 14:59:28.505: I/libjingle(14672): Adding allocated port for audio
  05-11 14:59:28.505: I/libjingle(14672): Jingle:Port[audio:1:0::Net[wlan0:10.0.0.0/8:Unknown]]: Added port to allocator
  05-11 14:59:28.525: D/IceCandidate(14672): audio:0:candidate:1281544012 1 udp 2122260223 10.0.0.112 49865 typ host generation 0
  05-11 14:59:28.525: D/sdpMLineIndex(14672): 0
  05-11 14:59:28.525: D/sdpMid(14672): audio
  05-11 14:59:28.525: D/candidate(14672): candidate:1281544012 1 udp 2122260223 10.0.0.112 49865 typ host generation 0
  05-11 14:59:28.525: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Udp
  05-11 14:59:28.525: I/libjingle(14672): Jingle:Port[:1:0::Net[wlan0:10.0.0.0/8:Unknown]]: Port created
  05-11 14:59:28.525: I/libjingle(14672): AllocationSequence: UDPPort will be handling the STUN candidate generation.
  05-11 14:59:28.525: I/libjingle(14672): Adding allocated port for audio
  05-11 14:59:28.525: I/libjingle(14672): Jingle:Port[audio:2:0::Net[wlan0:10.0.0.0/8:Unknown]]: Added port to allocator
  05-11 14:59:28.555: D/IceCandidate(14672): audio:0:candidate:1281544012 2 udp 2122260222 10.0.0.112 36221 typ host generation 0
  05-11 14:59:28.555: D/sdpMLineIndex(14672): 0
  05-11 14:59:28.555: D/sdpMid(14672): audio
  05-11 14:59:28.555: D/candidate(14672): candidate:1281544012 2 udp 2122260222 10.0.0.112 36221 typ host generation 0
  05-11 14:59:28.555: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Udp
  05-11 14:59:28.555: I/libjingle(14672): Jingle:Port[:1:0::Net[wlan0:10.0.0.0/8:Unknown]]: Port created
  05-11 14:59:28.555: I/libjingle(14672): AllocationSequence: UDPPort will be handling the STUN candidate generation.
  05-11 14:59:28.555: I/libjingle(14672): Adding allocated port for video
  05-11 14:59:28.555: I/libjingle(14672): Jingle:Port[video:1:0::Net[wlan0:10.0.0.0/8:Unknown]]: Added port to allocator
  05-11 14:59:28.565: D/IceCandidate(14672): video:1:candidate:1281544012 1 udp 2122260223 10.0.0.112 57380 typ host generation 0
  05-11 14:59:28.565: D/sdpMLineIndex(14672): 1
  05-11 14:59:28.565: D/sdpMid(14672): video
  05-11 14:59:28.565: D/candidate(14672): candidate:1281544012 1 udp 2122260223 10.0.0.112 57380 typ host generation 0
  05-11 14:59:28.575: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Udp
  05-11 14:59:28.575: I/libjingle(14672): Jingle:Port[:1:0::Net[wlan0:10.0.0.0/8:Unknown]]: Port created
  05-11 14:59:28.575: I/libjingle(14672): AllocationSequence: UDPPort will be handling the STUN candidate generation.
  05-11 14:59:28.575: I/libjingle(14672): Adding allocated port for video
  05-11 14:59:28.575: I/libjingle(14672): Jingle:Port[video:2:0::Net[wlan0:10.0.0.0/8:Unknown]]: Added port to allocator
  05-11 14:59:28.605: D/IceCandidate(14672): video:1:candidate:1281544012 2 udp 2122260222 10.0.0.112 48445 typ host generation 0
  05-11 14:59:28.605: D/sdpMLineIndex(14672): 1
  05-11 14:59:28.605: D/sdpMid(14672): video
  05-11 14:59:28.605: D/candidate(14672): candidate:1281544012 2 udp 2122260222 10.0.0.112 48445 typ host generation 0
  05-11 14:59:28.625: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.625: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.625: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.625: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.625: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.625: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.625: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.625: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.625: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.625: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.625: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Relay
  05-11 14:59:28.625: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Relay
  05-11 14:59:28.635: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.635: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Relay
  05-11 14:59:28.635: W/libjingle(14672): Warning(thread.cc:320): Waiting for the thread to join, but blocking calls have been disallowed
  05-11 14:59:28.635: D/IceCandidate(14672): audio:0:candidate:2940422560 1 udp 1686052607 197.44.239.36 49865 typ srflx raddr 10.0.0.112 rport 49865 generation 0
  05-11 14:59:28.635: D/sdpMLineIndex(14672): 0
  05-11 14:59:28.635: D/sdpMid(14672): audio
  05-11 14:59:28.635: D/candidate(14672): candidate:2940422560 1 udp 1686052607 197.44.239.36 49865 typ srflx raddr 10.0.0.112 rport 49865 generation 0
  05-11 14:59:28.645: D/IceCandidate(14672): audio:0:candidate:2940422560 2 udp 1686052606 197.44.239.36 36221 typ srflx raddr 10.0.0.112 rport 36221 generation 0
  05-11 14:59:28.645: D/sdpMLineIndex(14672): 0
  05-11 14:59:28.645: D/sdpMid(14672): audio
  05-11 14:59:28.645: D/candidate(14672): candidate:2940422560 2 udp 1686052606 197.44.239.36 36221 typ srflx raddr 10.0.0.112 rport 36221 generation 0
  05-11 14:59:28.665: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Relay
  05-11 14:59:28.675: D/IceCandidate(14672): video:1:candidate:2940422560 1 udp 1686052607 197.44.239.36 57380 typ srflx raddr 10.0.0.112 rport 57380 generation 0
  05-11 14:59:28.675: D/sdpMLineIndex(14672): 1
  05-11 14:59:28.675: D/sdpMid(14672): video
  05-11 14:59:28.675: D/candidate(14672): candidate:2940422560 1 udp 1686052607 197.44.239.36 57380 typ srflx raddr 10.0.0.112 rport 57380 generation 0
  05-11 14:59:28.685: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Tcp
  05-11 14:59:28.685: I/libjingle(14672): Jingle:Port[:1:0:local:Net[wlan0:10.0.0.0/8:Unknown]]: Port created
  05-11 14:59:28.685: I/libjingle(14672): Adding allocated port for audio
  05-11 14:59:28.685: I/libjingle(14672): Jingle:Port[audio:1:0:local:Net[wlan0:10.0.0.0/8:Unknown]]: Added port to allocator
  05-11 14:59:28.685: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Tcp
  05-11 14:59:28.685: D/IceCandidate(14672): audio:0:candidate:48313276 1 tcp 1518280447 10.0.0.112 40627 typ host tcptype passive generation 0
  05-11 14:59:28.685: D/sdpMLineIndex(14672): 0
  05-11 14:59:28.685: D/sdpMid(14672): audio
  05-11 14:59:28.685: D/candidate(14672): candidate:48313276 1 tcp 1518280447 10.0.0.112 40627 typ host tcptype passive generation 0
  05-11 14:59:28.685: I/libjingle(14672): Jingle:Port[:1:0:local:Net[wlan0:10.0.0.0/8:Unknown]]: Port created
  05-11 14:59:28.685: I/libjingle(14672): Adding allocated port for audio
  05-11 14:59:28.685: I/libjingle(14672): Jingle:Port[audio:2:0:local:Net[wlan0:10.0.0.0/8:Unknown]]: Added port to allocator
  05-11 14:59:28.685: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Tcp
  05-11 14:59:28.685: D/IceCandidate(14672): audio:0:candidate:48313276 2 tcp 1518280446 10.0.0.112 48390 typ host tcptype passive generation 0
  05-11 14:59:28.685: D/sdpMLineIndex(14672): 0
  05-11 14:59:28.685: D/sdpMid(14672): audio
  05-11 14:59:28.685: D/candidate(14672): candidate:48313276 2 tcp 1518280446 10.0.0.112 48390 typ host tcptype passive generation 0
  05-11 14:59:28.695: I/libjingle(14672): Jingle:Port[:1:0:local:Net[wlan0:10.0.0.0/8:Unknown]]: Port created
  05-11 14:59:28.695: I/libjingle(14672): Adding allocated port for video
  05-11 14:59:28.695: I/libjingle(14672): Jingle:Port[video:1:0:local:Net[wlan0:10.0.0.0/8:Unknown]]: Added port to allocator
  05-11 14:59:28.695: D/IceCandidate(14672): video:1:candidate:48313276 1 tcp 1518280447 10.0.0.112 60960 typ host tcptype passive generation 0
  05-11 14:59:28.695: D/sdpMLineIndex(14672): 1
  05-11 14:59:28.695: D/sdpMid(14672): video
  05-11 14:59:28.695: D/candidate(14672): candidate:48313276 1 tcp 1518280447 10.0.0.112 60960 typ host tcptype passive generation 0
  05-11 14:59:28.705: D/IceCandidate(14672): video:1:candidate:2940422560 2 udp 1686052606 197.44.239.36 48445 typ srflx raddr 10.0.0.112 rport 48445 generation 0
  05-11 14:59:28.705: D/sdpMLineIndex(14672): 1
  05-11 14:59:28.715: D/sdpMid(14672): video
  05-11 14:59:28.715: D/candidate(14672): candidate:2940422560 2 udp 1686052606 197.44.239.36 48445 typ srflx raddr 10.0.0.112 rport 48445 generation 0
  05-11 14:59:28.725: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=Tcp
  05-11 14:59:28.725: I/libjingle(14672): Jingle:Port[:1:0:local:Net[wlan0:10.0.0.0/8:Unknown]]: Port created
  05-11 14:59:28.725: I/libjingle(14672): Adding allocated port for video
  05-11 14:59:28.725: I/libjingle(14672): Jingle:Port[video:2:0:local:Net[wlan0:10.0.0.0/8:Unknown]]: Added port to allocator
  05-11 14:59:28.725: D/IceCandidate(14672): video:1:candidate:48313276 2 tcp 1518280446 10.0.0.112 59723 typ host tcptype passive generation 0
  05-11 14:59:28.725: D/sdpMLineIndex(14672): 1
  05-11 14:59:28.725: D/sdpMid(14672): video
  05-11 14:59:28.725: D/candidate(14672): candidate:48313276 2 tcp 1518280446 10.0.0.112 59723 typ host tcptype passive generation 0
  05-11 14:59:28.735: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=SslTcp
  05-11 14:59:28.735: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=SslTcp
  05-11 14:59:28.735: I/libjingle(14672): All candidates gathered for audio:2:0
  05-11 14:59:28.735: I/libjingle(14672): Transport: audio, component 2 allocation complete
  05-11 14:59:28.745: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=SslTcp
  05-11 14:59:28.745: I/libjingle(14672): All candidates gathered for video:1:0
  05-11 14:59:28.745: I/libjingle(14672): Transport: video, component 1 allocation complete
  05-11 14:59:28.775: I/libjingle(14672): Jingle:Net[wlan0:10.0.0.0/8:Unknown]: Allocation Phase=SslTcp
  05-11 14:59:28.775: I/libjingle(14672): All candidates gathered for video:2:0
  05-11 14:59:28.775: I/libjingle(14672): Transport: video, component 2 allocation complete
  05-11 14:59:28.775: I/libjingle(14672): Transport: video allocation complete
  05-11 14:59:28.775: I/libjingle(14672): Candidate allocation not done for audio
  05-11 14:59:28.795: I/libjingle(14672): All candidates gathered for audio:1:0
  05-11 14:59:28.795: I/libjingle(14672): Transport: audio, component 1 allocation complete
  05-11 14:59:28.795: I/libjingle(14672): Transport: audio allocation complete
  05-11 14:59:28.795: I/libjingle(14672): Candidate gathering is complete.
  05-11 14:59:28.795: D/IceGatheringChange(14672): COMPLETE
  }
  </code></pre>
  
  <p><strong>MediaConstraints</strong></p>
  
  <pre><code> pcConstraints.mandatory.add(new MediaConstraints.KeyValuePair("OfferToReceiveAudio", "true"));
                  pcConstraints.mandatory.add(new MediaConstraints.KeyValuePair("OfferToReceiveVideo", "true"));
                  pcConstraints.optional.add(new MediaConstraints.KeyValuePair("DtlsSrtpKeyAgreement", "true"));
  </code></pre>