基于SIP协议实现多媒体通信的研究  

Research on SIP-based multimedia communication

作　　者：朱江涛[1] 王声[1] 

机构地区：[1]中国航天工程咨询中心,北京100037

出　　处：《计算机工程与设计》2007年第19期4683-4685,共3页Computer Engineering and Design

摘　　要：由IETF工作组发布的会话初始化协议(session initiation protocol,SIP)相关标准已经成为通信和网络界的研究热点。随着协议的不断完善,SIP的应用范围不断扩大,被广泛的应用于多媒体会议、VoIP、多媒体分发等领域。介绍了SIP协议的历史,介绍了SIP URI、SIP协议的4个主要网络组成要素。通过对SIP与H.323两种协议的对比,可以看出SIP的简单性和可扩展性等特点。实现了一个基于SIP协议的通信模型。Although only more than one year since session initiation protocol （SIP） is delivered, SIP is already become the research hotspot in telecommunication and network fields. Along with the completeness of this protocol, SIP is widely used in various realms, such as multimedia conference and VolP. A brief introduction of the SIP history is given and a detail description of SIP URI, SIP messages and SIP network elements is introduced. Through the comparison of sip and H. 323, we can find that SIP is simple and extensibility. At the end, a design of communication model is put forward.

关 键 词：会话初始化协议 H.323协议 多媒体通信 消息 模型 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]