摘要
本文深入浅出地说明了ISDN的基本概念和业务特点,着重叙述了数字程控交换机的ISDN功能扩展及其实现的技术关键,最后介绍了我国ISDN交换机的开发和试用情况。
This article provides an in-depth look at the ISDN functionality expansion and core implementation technologies for digital SPC switching systems with a brief description of the basie concept and service characteristics of ISDN. It is con-cluded with a description of the development and trial condi-tions of exchanges with ISDN functionalitv in China.
出处
《世界电信》
1995年第6期23-25,53,共4页
World Telecommunications
