【摘要】 近年来,互联网中的VoIP业务得到广泛应用,通话模式已由PC to PC的方式逐渐发展为PC to Phone,给电信运营企业的传统话音业务带来了新的广泛市场的同时,也带来了巨大的安全冲击和挑战。由于VoIP协议不统一,并且多采用各自的加密技术,致使电信运营商难以掌控VoIP话务量,同时也留下了很多安全隐患。文章在介绍VoIP的基本原理、讨论VoIP安全漏洞与安全防护策略的基础上,设计了VoIP通话流量控制机制的实验环境,通过数据包重定向信息截取实验,给出了实验结果分析。更多还原

【Abstract】 With the widely use of VoIP service in recent years,the call mode is changing from PC to PC to PC to Phone.It not only brings new market to the telecom operators,but also brings some challenges on the network security.This paper introduces the basic principle of VoIP and discusses the security vulnerability and protection strategy.An experimental environment for voice flow control mechanism of VoIP is also designed.By packet redirection and information interception,the experimental results are obtained and analyzed.更多还原