Modern computer communication network is heading for ATM switching networks and B-ISDN, which integrated various traffics such as voice, data, fax and video.

 
  • 现代计算机通信网正朝着ATM交换网和宽带综合业务数字网(B-ISDN)的方向发展,其服务业务包括话音、数据、传真和视频等。
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