VoIP的许多独特的优点使它越来越受企业的欢迎。由于VoIP~行在IP网络中，在

IP网络上常见的攻击与威胁也同样会出现在VoIP中，还有一些专门针对VoIP的攻击，如

窃听、注册攻击、窃取服务等。企业在建,．9．VolP网络时，应充分考虑VoIP的安全性。文章以

SIP信令为例，介绍在VoIP架构中如何保护SIP信息及VoIP媒体流，介绍了一些方法和安全

技术来为VoIP提供加密和认证功能，为企业的VoIP安全性设计提出建议，作为参考。-VoIP s many unique advantages to make it more and more welcomed by enterprises. VoIP ~ Bank as a result of IP networks, IP networks in the common threat of attack and will also appear in the VoIP, there are a number of VoIP-specific attacks, such as wiretapping, the registered attacks, theft of services. Enterprises in the construction. 9. VolP network, should give full consideration to the security of VoIP. Article for SIP signaling as an example, in the VoIP architecture on how to protect SIP messages and VoIP media streams, introduced a number of methods and security technologies for VoIP to provide encryption and authentication features, enterprise VoIP security design recommendations, as a reference .