基于SIP网络电话的分布式合法侦听系统设计  

Design of the distributed system for lawful interception in SIP network telephony

作　　者：李志超[1] 孟相如[1] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077

出　　处：《电子技术应用》2008年第3期133-136,共4页Application of Electronic Technique

基　　金：空军科研基金项目(020066);陕西省自然科学基金项目(2005.9.17)

摘　　要：介绍了会话启动协议(SIP)系统和合法侦听(LI)的原理及要求,在提出分布式合法侦听架构的基础上,设计了SIP系统的分布式侦听模型,该侦听架构符合合法侦听要求,并对SIP系统的分布式侦听模型的丢包率、性能进行了测试比较。The SIP system and lawful interception （LI） principle were proposed. Based on the proposed architecture of a distributed LI system, a prototype of a distributed system for lawful interception in SIP network was built. The architecture we proposed met the requirements which a lawful interception system must fulfill. The rate of packet lost and the perofrmance of the mode of distributed interception system in SIP network were tested and compared.

关 键 词：SIP 合法侦听 分布式系统 

分 类 号：TN929.5[电子电信—通信与信息系统] O175.2[电子电信—信息与通信工程]