摘要
会话初始协议(SIP)是IETF定义的基于IP的应用层信令控制协议,是VoIP技术的核心协议;ISDN网络-用户接口协议DSS1,是传统电路交换网的主要信令控制协议.文章介绍并深入分析了SIP和DSS1协议,从互通的角度对二者进行了分析,给出了二者之间一种互通的结构、消息的映射方法以及会话建立的过程,设计并实现了一个可行的解决方案,为设计以SIP为核心的软交换设备提供一些理论上依据,同时为实现传统电路交换技术向IP软交换技术的平滑过渡提供了一种可行的解决方案.
Session Initiation Protocol （SIP） is an application-layer control （signaling） protocol based on IP protocol defined by IETF, which acts as the kernel controlling protocol of VolP. And DSS1, the User-Network Interface protocol of ISDN, is the major signaling control protocol, which for the control of the traditional circuit-switched connections. The paper, between two protocols based on analysis from the point of interworking, investigates and analyzes SIP and DSS1 protocols, brings out the specific interworking architecture, message mapping method and the call establishing procedure, designs and implements an effective solution, provides the reference to design the soft-switch devices based on SIP , provides an effective solution for old circuit-switched network to evolve into soft-switch network based on IP protocol smoothly.
出处
《小型微型计算机系统》
CSCD
北大核心
2009年第7期1351-1356,共6页
Journal of Chinese Computer Systems
