2450 标准查询与下载

ITU-T I.352-1993 ISDN 连接处理减速用网络性能目标

Network Performance Objectives for Connection Processing Delays in an ISDN (Study Group XVIII) 22 pp

ITU-T I.112-1993 ISDNs 用术语

Vocabulary of Terms for ISDNs (Study Group XVIII) 19 pp

ITU-T I.120-1993 综合服务数字网络(ISDNs)

Integrated Services Digital Networks (ISDNs) (Study Group XVIII) 5 pp

ITU-T I.210-1993 ISDN远程通信业务规则及说明方法

Principles of Telecommunication Services Supported by an ISDN and the Means to Describe Them (Study Group XVIII) 31 pp

ITU-T I.221-1993 服务特点

Common Specific Characteristics of Services (Study Group XVIII) 8 pp

ITU-T I.241.7-1993 7 KHz远程服务电话

TELEPHONY 7 KHZ TELESERVICE [Superseded: ITU-T I.241]

ITU-T G.960-1993 ISDN 基础率取数用存取数字单元

Access Digital Section for ISDN Basic Rate Access (Study Group XVIII) 35 pp

ITU-T I.325-1993 ISDN 连接型号用参考构型

Reference Configurations for ISDN Connection Types (Study Group XVIII) 16 pp

ITU-T I.411-1993 ISDN 用户网络连接.参考构型

ISDN USER-NETWORK INTERFACES REFERENCE CONFIGURATIONS

ITU-T I.310-1993 ISDN.网络功能原则

ISDN - Network Functional Principles Study Group XVIII

ITU-T I.350-1993 数字网络包括ISDNs的网络性能及服务质量的一般特点

General Aspects of Quality of Service and Network Performance in Digital Networks Including ISDNs Study Group XVIII

ITU-T I.510-1993 ISDN 连网定义及一般规则

Definitions and General Principles for ISDN Interworking Study Group XVIII