client-side application development
http://www.oracle.com/technetwork/articles/entarch/introduction-jain-sip-090386.html
使用JAIN SIP开发基于SIP协议的应
http://blog.sina.com.cn/s/blog_4cef7f1e0100080b.html
http://www.oracle.com/technetwork/java/jain-sip-tutorial-149998.pdf