摘要
当前软交换和IP多媒体子系统(IMS)成为下一代网络融合的2个方向,两者都基于IP承载,都具有呼叫控制与承载分离的思想。根据二者的体系结构与特点,软交换可作为传统电话网的平滑过渡,而IMS在业务的应用方面具有更多的灵活性。文章介绍了NGN、软交换及IMS等概念,对软交换及IMS做了简单比较,并对网络融合方向提出了看法。
Currently, softswiteh and IMS become two important directions of the next generation network convergence. IP is their both carrier, and they both have the idea of separation of call control and carrier. But as a result of their system structure and trait, softswiteh can become smooth transition of the old telephone network, and IMS has more flexibility in service application if compared with softswiteh. In this paper, the concept of NGN, softswiteh and IMS are introduced, also, the softswiteh and IMS are simply compared, at last the opinion about the direction of network convergence is given.
出处
《电力系统通信》
2007年第2期38-40,共3页
Telecommunications for Electric Power System
关键词
下一代网络
软交换
IP多媒体子系统
Next Generation Network （NGN）
softswitch
IP multimedia subsystem （IMS）
