IP电话的原理结构及其关键技术

Principle Structure and Key Technique of IP Telephone

分析了在大型企业环境中使用IP电话时面临的安全问题,提出IP电话应用的安全要求,分析其安全漏洞,针对安全漏洞提出需要提供的安全服务,选取合适的加密算法和协议构建出一个安全模型,最后将提出的模型和传统的方法做了比较,并对进一步的研究作出展望。

This paper analyzes safety problems of using IP telephone in big enterprises, points out safety requirements of IP telephone application and analyzes its safety flaw. According to safety service provided for safety flaw, a safety model is built by proper encryption algorithm and agreement. At last provided model is compared with traditional method and prospect is made for further study.