ITU-T X.1-2000
国际用户业务等级、接入种类、公众数据网和综合业务数字网(ISDN)系列X:数据网络与开放系统交流

International User Classes of Service in and Categories of Access to Public Data Networks and Integrated Services Digital Networks (ISDNs) Series X: Data Networks and Open System Communications Public Data Networks - Services and Facilities Study Group 7;

标准号

ITU-T X.1-2000

发布

2000年

中文版

GB/T 11589-2011 (等同采用的中文版本)

发布单位

国际电信联盟

 

 

适用范围

The establishment in various countries of public networks for data transmission and ISDNs for integrated services creates a need to standardize user classes of service and categories of access.

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