webRtcEndpoint.connect(port);
port.connect(webRtcEndpoint);
room.joinParticipant(session, webRtcEndpoint, port);
// SDP Answer
String sdpAnswer = webRtcEndpoint.processOffer(sdpOffer);
JsonObject scParams = new JsonObject();
scParams.addProperty("sdpAnswer", sdpAnswer);
transaction.sendResponse(scParams);
}