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通信数字化技术、计算机技术及多媒体技术的发展，综合业务数字网（ＩＳＤＮ）和计算机多媒体给人们提供了进行信息交流的更广阔空间，建立在ＩＳＤＮ基础之上的电视会议在教学和培训中得到了应用，并从中获得良好效果。简单介绍了ＩＳＤＮ的概念及其发展，并提出了其在教学和培训中的几个方面的应用，还给出了一个应用实例。
The development of communication digital technology, computer technology and multimedia technology, Integrated Services Digital Network (ISDN) and computer multimedia have provided a wider space for people to exchange information. The video conference based on ISDN got the teaching and training Application, and get good results. The concept of ISDN and its development are introduced briefly. The application of ISDN in several aspects of teaching and training is also presented. An application example is also given.