YD/T 1620.2-2007.SDH-based MSTP Network Management Technical Specification Part 2: NMS Function. 1范围 YD/T 1620.2规定了基于SDH的MSTP网络管理NMS系统功能要求。主要包括拓扑管理、配置

YD/T 1403-2005.The technical requirment and test method of service qualification of peer to peer short message interworking between networks. 1范围 YD/T

YD/T 1642-2009.Test Method of Internet Network and Service Quality. 1范围 YD/T 1642规定了互联网网络和业务服务质量的测试方法，包括互联网网络质量以及WWW业务、Email业务、FTP 业务的服务质量测试方法，互联网其他业务

YD/T 1589-2006.The Test Methods for Interworking Gateway in Point to Point Short Message Interworking. 1范围 YD/T 1589规定了点对点短消息网间互通设备即互联网关设备的测试方法，包括互联网关

YD/T 1590-2006.The Technical Requirement of Echo and Echo Control for Inter- Public Telecom Network. 1范围 YD/T 1590规定了发话人回声的要求，包括网间通话的回声指标、发送和接收的响度评定值、

YD/T 1388.1-2005.Technical requirements of the softswitch based services part 1: Services system. 1范围 YD/T 1388.1规定了基于软交换网络的业务分类、实现方式和计费方式。 YD/T 1388.

YD/T 1388.2-2005.Technical requirements of the softswitch based services part 2: Number identification services. 1范圈 YD/T 1388.2规定了基于软交换的号码识别类业务的业务含义、

YD/T 1388.4-2005.Technical requirements of the softswitch based services part 4: Multiparty call services. 1范围 YD/T 1388.4规定了基于软交换的多方通话类业务的业务含义、业务特征、业

YD/T 1346-2005.Test Specifications for SDH-based MSTP Embedded with RPR. 1范囿 YD/T 1346规定了内嵌RPR的基于SDH的多业务传送节点(MSTP) 的功能、性能及网络管理的测试方法，包括节点的基本功能、接口特性、性能参

YD/T 1431-2006.Technical requirement and testing methods for the charging performance of exchange - mobile intelligent network part. 1范围 YD/T 1431规定了移