摘要
会话初始化协议(SIP),它的主要目的是为了解决IP网中的信令控制,以及同软交换机(SoftSwitch)的通信,从而构成下一代的增值业务平台,对电信、银行、金融等行业提供更好的增值业务。本文简单介绍了SIP的系统结构、主要功能、消息机制、优越性和发展现状,最后通过介绍了它的应用实例,模拟了SIP的呼叫建立及终止过程。
Session Initiation Protocol (SIP) serves mainly to achieve signaling control in IP network and communication with SoftSwitch so as to form the next generation increment operation platform and thus provide better increment operation for telecom, banking, finance and etc. This paper gives a brief introduction to SIP s system structure, major functions, message mechanism, advantages and development and concludes with some examples of SIP applications in order to illuminate readers.
出处
《电子科技》
2005年第4期38-40,44,共4页
Electronic Science and Technology
关键词
SIP
用户代理
SIP消息
VOIP
NGN
Session Initiation Protocol
user agent
Session Initiation Protocol Message
Voice Over Internet Protocol
Next Generation Network
