摘要
介绍了ISDN的概念、种类、业务和主要应用,并结合下一代网络体系架构,详细描述了ISDN网络融合到下一代网络的关键技术。
This paper discusses the concept,category,business and main application of ISDN technology.The paper focuses on the main tech nology from ISDN network to NGN based on the NGN system framework.
