WCF服务安全控制之netTcpBinding的用户名密码验证
http://www.cnblogs.com/wengyuli/archive/2011/05/14/wcf-nettcpbinding-username.html
http://www.cnblogs.com/woxpp/p/6232343.html
基于WCF回调(WCF Callback)的GPS报警推送(带源码)
http://www.cnblogs.com/productivity/archive/2013/05/23/3094818.html?utm_source=tuicool
WCF回调中的死锁
http://www.cnblogs.com/TianFang/archive/2013/04/08/3009134.html
http://www.codeproject.com/Articles/25261/A-WCF-WPF-Chat-Application