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电话主叫识别信息传送是国外近年兴起、国内即将开通的一种程控交换新业务。文章介绍了电话主叫识别信息的技术要求、数据格式及ＳＺＵ９７０２型电话主叫显示信号发生器的软硬件工作原理和设计构思。
Telephone caller identification information transmission is the rise of foreign countries in recent years, the forthcoming opening of a program-controlled exchange of new business. The paper introduces the technical requirements of telephone caller identification information, data formats and SZU97 02 telephone caller display signal generator software and hardware working principles and design concepts.