YD/T 1228-2002.900/1800MHz TDMA digital cellular mobile communication networkGPRS(General Packet Radio Service)test methods of Tunnelling protocol. 1范

YD/T 1229-2002.Removable Terminal Data Synchronization Protocol and Data Type of Information Exchange Technical Requirement. 1范围 YD/T 1229规定了各种可移动设备(如

YD/T 1235.1-2002.Performance requirements for Surge Protective Devices Connected to Low-voltage Distribution Systems of Telecommunication Stations/Sit

YD/T 1235.2-2002.Testing Methods for Surge Protective Dev ices Connected to Low-vo Itage Distribution Systems of Telecommunication Stations/Sites. 1范围

YD/T 1237-2002.The Technical Requirements and Test Methodgfor PSTN Videophone. 1范围 YD/T 1237主要规定了PSTN可视电话与网络连接的接口参数、通信协议、视频性能、音频性能、安全性能及电磁兼容性能等方面的技术要求

YD/T 1238-2002.Technical requirements for SDH multi- service transport platform. 1范围 YD/T 1238规定了基于SDH的多业务传送节点(MSTP) 的技术要求，包括节点的基本功能、接口特性、性能参数和指标、保护倒换

YD/T 1214-2006.Technical requirement of 900/1 800MHz TDMA Digital Cellular Mobile Telecommunication Network General Packet Radio Service(GPRS)Equipmen

YD/T 1210-2002.900/1800MHz TDMA digital cellular mobile telecommunications network test method of Service Switching Point (SSP) for CAMEL2. 1范围 YD/T 1

YD/T 1217-2002.900/1800MHz TDMA digital cellular mobile telecommunication network test specification of CAMEL Application Part (CAP)(CAMEL2) (SSP part

YD/T 1216-2002 900/1800MHz TDMA digital cellular mobile telecommunication network test method for general packet radio service :base station sub-syste