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介绍数字程控交换机与模拟自动交换机之间实现等位拨号的基本方法和原则 ,提供一种实际的等位拨号网和有关的程序设计。
This paper introduces the basic methods and principles of realizing the dialing between digital program controlled switches and analog automatic switches, and provides an actual ally dialing network and related program design.