GB/T 11589-1999
AbolishedInternational user classes of service in,and categories of accessto,public data networks and integrated services digital networks(ISDNs)
公用数据网和综合业务数字网(ISDN)的国际用户业务类别和接入种类
Application Summary AI generated
This standard defines the international user service classes and access categories for public data networks and Integrated Services Digital Networks (ISDNs). It is applied by telecommunications engineers and network operators to classify and specify the types of user services and access methods for connecting terminal equipment to these networks. The standard ensures compatibility and interoperability in international data communication and ISDN services.
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