论文部分内容阅读
用户对综合业务数字网(ISDN)的需求日益增长,迫使各通信公司在美国全国范围内铺开基本速率和基群速率业务.本文将讨论美国ISDN市场的驱动力,最可能迅速实现的应用,以及各通信公司开展ISDN业务的情况.
The growing demand for Integrated Services Digital Networks (ISDN) has forced communications companies to roll out basic and base-rate services throughout the United States.This article will discuss the drivers of the US ISDN market, the most likely rapid adoption, As well as the various communications companies to carry out ISDN business situation.