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为了适应农村形势迅速发展的新情况,应用新技术改造现有通信网,迎接信息社会的到来,省局对于县内电话网如何规代化问题进行了研究,并作出了安排。县内电话网现代化的主要标志,首先是建立自动电话网,市语用户和农话用户都能进入长途自动网,不论城关或农村的电话用户都能直拨县外、省外甚至国外的电话用户;其后是开放多种电话业务,如优先用户、热线电话、叫醒电话、转移呼叫、缩位拨号、呼叫等待、三方通话等等;最终是要建立综合业务数字网((?)SDN),不仅能开放电话业务也能开放非电话业务(如传真、数据、电报等),不仅能传递相交换语言信息少也能传递和交换视觉信息。
In order to adapt to the new situation of the rapid development of rural areas, the application of new technologies to transform the existing communications network to meet the arrival of the information society, the provincial bureau on the county telephone network how to regulate the issue of research and made arrangements. The main symbol of the modern telephone network in the county, the first is to establish an automatic telephone network, users of both Chinese and rural users can enter the long-distance automatic network, regardless of city or rural telephone users can dial outside the county, the province and even foreign telephone users ; Followed by the opening of a variety of telephone services, such as priority users, hotlines, wake-up calls, transfer calls, abbreviated dialing, call waiting, three-way calling, etc. Finally, to establish an Integrated Services Digital Network (SDN) , Can not only open the telephone business but also open non-telephone business (such as fax, data, telegraph, etc.), not only can pass the exchange of language information, but also can transfer and exchange visual information.