VoIP网络信息安全研究

VoIP是基于分组交换的话音传输技术，与基于电路交换的传统电话架构有很大的不同。导致了VoIP网络特有的安全问题。另外，VoIP网络的实时性要求高，由于IP网络服务自身的特性以及各种安全策略的应用，给VoIP网络的性能和服务质量提出了挑战。对VoIP网络存在的安全威胁及各种安全措施进行分析，并对VoIP系统的部署和VoIP管理政策的制定提出建议。

Study on VoIP Network Information Security

As a voice transmission technology which based on packet switching, VoIP is quite different from traditional telephone service which is based on circuit switching, which results in specific security issues on VolP network. In addition, because of the high real time request for VolP network, the characteristics of network services and the security strategies applied bring challenges for the capability and QoS of VoIP network. In this article, the existing security threat and several security measures of VoIP network have been analyzed, and the author put forward suggestions for VoIP system deployment and related management policy.