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集中式SIP视频会议系统模型设计
引用本文:陈谦,李太浩. 集中式SIP视频会议系统模型设计[J]. 农业网络信息, 2010, 0(12)
作者姓名:陈谦  李太浩
作者单位:吉林农业大学信息技术学院;吉林农业大学信息化教学与管理中心;
摘    要:系统介绍了会话初始协议SIP,同时与H.323协议进行比较并分析其优势,以集中式多媒体会议体系结构为基本模型,介绍组成会议的基本元素中心节点Focus、混合器MIXER、会议策略服务器、会议通告服务等。在此基础上进一步细化会议流程,分析各会议元素的基本功能,描述会议的发起、加入、注销等控制过程,设计了视频会议系统模型。

关 键 词:SIP  集中控制  视频会议  模型

Designing of Centralized SIP Video Conference System Model
CHEN Qian,LI Taihao. Designing of Centralized SIP Video Conference System Model[J]. Agriculture Network Information, 2010, 0(12)
Authors:CHEN Qian  LI Taihao
Affiliation:CHEN Qian1,LI Taihao2(1.Teaching and Information Management Center of Jilin Agricultural University,Changchun 130118,2.Information Technology Department of Jilin Agricultural University,Changchun 130118)
Abstract:In this article,Session Initiation Protocol(SIP) was introduced,and compared with H.323 Protocol,and its advantage was analyzed.With centralized video conference system as model,the basic elements,such as Focus,Mixer,Conference Policy Server(CPS),Conference Notification Service(CNS) etc were introduced.The conference control process was described in detail,as well as the function of every elements and the control process such as initiation and joining.
Keywords:SIP(Session Initiation Protocol)  centralized  video conference system  model  
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