基于Asterisk的SIP/H.323视频网关研究  

Research on SIP/H.323 Gateway Base on Asterisk

作　　者：孙少鹏[1] 赵旨忠[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2013年第6期6-9,共4页Radio Engineering

摘　　要：会话起始协议(Session Initiation Protocol,SIP)和H.323这2种协议都曾是主流的IP语音协议(Voice overInternet Protocol,VoIP),并且各自拥有大量的用户群。目前面对这2种协议的互通网关大多是以完成音频互通为目的,针对这2种VoIP协议之间的视频互通需求,提出了使用星号(Asterisk)IP专用分支交换(IP Private Branch eXchange,IP-PBX)软件将使用这2种协议的各类设备进行以视频为目标的互联互通方法,并描述了该方法实现的具体实现需要修改的内容和采用该方法实现二者互通时的呼叫流程。SIP and H. 323 have been the mainstream of VoIP protocols,and each has a large user group. Currently,most intercon- necting gateways between the two protocols only realize audio communication. To meet the requirements of video communication between the two VoIP protocols,this paper proposes the interconnection method of video communication by using the IP-PBX software Asterisk. Then the paper describes how to modify the software to implement the method and gives the call flow for the interconnection between the two protocols.

关 键 词：ASTERISK SIP H 323 H 245 

分 类 号：TN713.5[电子电信—电路与系统]