https://github.com/jbavari/ionic-socket.io-redis-chathttp://jbavari.github.io/blog/2014/06/17/building-a-chat-client-with-ionic/socket.io example:http://socket.io/get-started/chat/

http://m.blog.csdn.net/article/details?id=44096665

https://github.com/hollyschinsky/PushNotificationSamplehttp://devgirl.org/2014/12/16/push-notifications-sample-app-with-ionic-and-ngcordova/node push server:https://www.npmjs.com/package/node-pushservercordova push pluginhttps://github.com/phonegap-build/PushPlugin/tutorial: how to implement push notifications under ionic applicationhttp://devgirl.org/2013/07/17/tutorial-implement-push-notifications-in-your-phonegap-application/basic flows of push notifications based on APNS(apple push notification server):http://devgirl.org/2012/10/19/tutorial-apple-push-notifications-with-phonegap-part-1/basic flows of push notifications based on GCM (goole cloud messaging):http://devgirl.org/2012/10/25/tutorial-android-push-notifications-with-phonegap/how to play sound:http://ngcordova.com/docs/plugins/media/

https://github.com/jpush/jpush-phonegap-plugin

http://ionichina.com/topic/54fab88b7b505d9b1b5573a6

https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/WhatAreRemoteNotif.html

https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/IPhoneOSClientImp.htm

http://media.io