H.323安全研究与标准制定

H．323发展领先于其它VoIP协议。由于互联网的开放性和缺乏有效监控，以及H．323协议簇本身的协议漏洞，H.323网络安全问题给H.323系统带来诸多威胁。首先对H．323系统面临的安全威胁进行介绍，进而对H．323网络安全进行详细的分析介绍，最后介绍了国际国内的相关标准制定情况。

The Security Research and Standard Constitute of Protocol H.323

H.323 developed faster than others VoIP protocol. But, because of the network's open characteristic and lack of effective supervise, and the disadvantages of protocol H.323,all the network security problems made the H.323 system has many hidden problems. This paper first introduces all the security problems that H.323 system faced, then analyses network security of H.323 in detail. At last this paper introduces the actuality of design H.323 standards in our country and other countries.