YD/T 1519-2006.Interoperability Specification and Test Mesurement for VoIP Accessing Equipment based on MGCP.1范围YD/T 1519规定了国内骨干网侧采用IP协议传输语音业务...
YD/T 1518-2006.Interoperability Specification and Test Measurement for VoIP Accessing Equipment Based H.248.1范围YD/T 1518规定了在骨干网侧采用IP协议传输语音业务的...
YD/T 5044-2005.Acceptance Specification for SDH Long-Haul T ransnission Systemof Optical Fibre Project.1总则1.0.1YD/T 5044是SDH长途光缆传输系统工程质量检查、检验、...
YD/T 5047-2005.Standard for Design of Integrated Telecommunications Business Hall.1总则1.0.1电信营业厅是电信业务经营者经营电信业务和直接为用户服务的窗口...
YD/T 5056-2005.Acceptance Specification for Fiber Optic Submarinc Cable Transmission System Engineering.1总则1.0.1《海底光缆数字传输系统工程验收规范》(以下简称...
YD/T 5058-2005.Accepiance Specifications on the Engincering of Centralized Monitoring . Control System for Telecommunication Power Supply.1总则1.0.1YD/T 5058是通信电源集中监...
YD/T 5067-2005.Specifications on Engineering Acceptance for 900/1800 MHz TDMA Digital Cellular Mobile Communication System.1总则1.0.1YD/T 5067是900/1800MHz TDMA数字移动通信设...
YD/T 5028-2005.Specifications of Engineering Design for Very Small Earth Station (VSAT) System of Domestic Satellite Communication.1总则1.0.1YD/T 5028适用于C频段(6/4GHz)和Ku频...
YD/T 5027-2005.Design Specification on the Engineering of Centralized Monitoring . Control System for Telecommunication Power Supply.1总则1.0.1YD/T 5027适用于新建的通信电源...
YD/T 5034-2005.Temporary Speifications of Engineering Design for Digital Trunking Communication.1总则1.0.1YD/T 5034适用于新建800MHz数字集群通信工程的安装设计。对...
