openSignalingChannel.js

connection.openSignalingChannel = function(config) {
                    var websocket = new WebSocket('ws://localhost:8008/voice/my_group');
                        websocket.channel = config.channel || this.channel;
                        websocket.onopen = function () {
                            websocket.push(JSON.stringify({
                                open: true,
                                channel: websocket.channel
                            }));
                            if (config.callback) config.callback(websocket);
                        };
                        websocket.onmessage = function (event) {
                            config.onmessage(JSON.parse(event.data));
                        };
                        websocket.push = websocket.send;
                        websocket.send = function (data) {
                            websocket.push(JSON.stringify({
                                data: data,
                                channel: websocket.channel
                            }));
                        };
                };