【摘 要】
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窄带数字程控交换网(电路交换网)作为中国电信为广大客户提供话音业务、程控新业务和补充业务,进行信息交流、沟通的基础性网络,经过近20年的发展,网络规模不断扩大,为中国电
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窄带数字程控交换网(电路交换网)作为中国电信为广大客户提供话音业务、程控新业务和补充业务,进行信息交流、沟通的基础性网络,经过近20年的发展,网络规模不断扩大,为中国电信的发展起到了至关重要的作用。随着近几年用户消费特点、需求的变化以及村通工程的不断进展,本地网作
Narrow band digital program-controlled switching network (circuit-switched network) as China Telecom to provide our customers with voice services, program-controlled new business and supplementary services, information exchange, communication of the basic network, after nearly 20 years of development, expanding the network for The development of China Telecom has played a crucial role. With the characteristics of consumer spending in recent years, changes in demand and the continuous progress of Murata, the local network
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