摘要
网络结构和控制协议是最为重要的组网技术。软交换网络结构的重要特点是其明确的功能分层。基于会话启动协议(SIP)的呼叫控制协议、以H.248为主的边缘接入协议以及SIGTRAN信令互通传送协议构成了软交换网络的控制核心。首先给出软交换网络的分层结构,简要阐述各层功能以及软交换系统的结构,然后深入讨论了软交换网络的核心协议——SIP和电话应用的协议SIP(SIP-T),并将其与H.323协议和与承载无关的呼叫控制(BICC)协议进行了比较。
Network architecture and its control protocols are the most important networking technologies.The primary feature of softswitch network architec-ture is layered functions.The layered structure of softswitch networks is firstly presented in this paper with the brief description of the functions on different layers and the structure of softswitch system.In-depth discussion about the core protocols of softswitch network,namely SIP and SIP -T is presented.Then these protocols are compared with H.323and BICC protocols.
出处
《现代电信科技》
2002年第7期12-16,共5页
Modern Science & Technology of Telecommunications
