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NGN标志着新一代电信网络时代的到来,它使得在新一代网络上语音、视频、数据等综合业务成为了可能。软交换是NGN的关键技术,是NGN呼叫与控制的核心。它们一方面实现了网间的互联互通,使得计算机网与电话交换网成为一个可管理、可维护,另一方面具有支持多种信令协议的接口,方便开展新的业务,可以更完备地为电力通信网提供服务。本文从NGN及软交换的概念谈起,论述了它的发展趋势、功能特点、多种接口以及软交换技术,介绍了它们在电力通信的应用前景等。
NGN marks the arrival of a new generation of telecommunications networks, which makes it possible for integrated services such as voice, video and data on next-generation networks. Softswitch is the key technology of NGN, it is the core of NGN call and control. On the one hand, they realize internetworking and interworking, making the computer network and the telephone switching network become a manageable and maintainable interface on the other hand, which supports multiple signaling protocols to facilitate the development of new services, which can be more complete Power communication network to provide services. This article starts with the concept of NGN and softswitch, discusses its development trend, features, interfaces and softswitch technology, and introduces their application prospect in power communication.