angular and webrtc using pubnub

controller.js

myApp.controller('DashboardIndexController', ['$rootScope','$scope', 'PubNub', '$state', '$auth',
    function($rootScope, $scope, PubNub, $state, $auth) {
        // http://www.pubnub.com/blog/angularjs-101-from-zero-to-angular-in-seconds/
        $scope.userEmail = $rootScope.user.email;
        $scope.uuid = $rootScope.user.id;
        $scope.channel = "Dashboard Channel";
        $scope.messages = ['Welcome to ' + $scope.channel];

        if (!$rootScope.chatInitialized) { 
            // Initialize the PubNub service
            PubNub.init({
                subscribe_key : settings.pubnubKey('subKey'),
                publish_key   : settings.pubnubKey('pubKey'),
                uuid          : $scope.uuid
            });
            $rootScope.chatInitialized = true; 
        }

        // Subscribe to the Channel
        PubNub.ngSubscribe({ channel: $scope.channel });

        // Create a publish() function in the scope 
        $scope.publish = function() {
            PubNub.ngPublish({
                channel: $scope.channel,
                message: "[" + $scope.userEmail + "] " + $scope.newMessage
            });
            $scope.newMessage = '';
        };

        // Register for message events 
        $rootScope.$on(PubNub.ngMsgEv($scope.channel), function(ngEvent, payload) {
            $scope.$apply(function() {
                $scope.messages.push(payload.message);
            });
        });

        //* Video *

        // Video session
        if (!$rootScope.phoneInitialized) {
            $scope.phone = PHONE({
                number        : $scope.uuid,
                publish_key   : settings.pubnubKey('subKey'),
                subscribe_key : settings.pubnubKey('pubKey'),
                ssl           : true
            });
            $rootScope.phoneInitialized = true;
        }

        $scope.call = function() {
            // As soon as the phone is ready we can make calls
            $scope.phone.ready(function(){
                // Dial a Number and get the Call Session
                // For simplicity the phone number is the same for both caller/receiver.
                // you should use different phone numbers for each user.
                $scope.phoneSession = phone.dial('8');
            });
        };

        // When Call Comes In or is to be Connected
        $scope.phone.receive(function(session){
            // Display Your Friend's Live Video
            session.connected(function(session){
                PUBNUB.$('video-out').appendChild(session.video);
            });

        });
    }
]);