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兖州矿业(集团)公司通讯中心对综合业务数字网(ISDN)的业务特性、服务类型、业务种类和应用等方面开展了研究分析,认为综合业务数字网具有显著的优越性和广泛的应用前景。
Yanzhou Mining (Group) Company Communication Center conducted a research and analysis on the business characteristics, service types, business types and applications of Integrated Services Digital Network (ISDN) and concluded that Integrated Services Digital Network has significant advantages and broad application prospects.