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本文概述了公用电话交换网、公用数据交换网和有线电视网这三种网络的现状， 分析ＡＴＭ技术的优势所在， 提出依靠ＡＴＭ 技术统一三网是必然趋势， 然后介绍了一种满足三网合一业务质量要求的ＡＴＭ 交换技术。
This article summarizes the current situation of the public switched telephone network, public data exchange network and cable television network. The advantages of ATM technology are analyzed. It is an inevitable trend to unify the three networks by using ATM technology. Then, ATM switching technology that combines quality of service requirements.