YD/T 1264-2003.General technical requirement of P telephony and Pfax services: P...

行业标准2023.08.02

YD/T 1240-2002.Test Method for Access Network-Broadband Access Network Based on...

行业标准2023.08.02

YD/T 1239-2002.Access network technical specifications-Very-high-speed Digital S...

行业标准2023.08.02

YD/T 1246-2002.Test method of ATM switch equipment.1范围YD/T 1246规定了对ATM交换设备的测试方法，...

行业标准2023.08.02

YD/T 1245-2002.Electronic commercial application level protocol under mobile env...

行业标准2023.08.02

YD/T 1244-2002.Requirement and measurement methods of electromagnetic compatibil...

行业标准2023.08.02

YD/T 1243.3-2002.Technical specification for media gateway equipment - integrate...

行业标准2023.08.02

YD/T 1243.2-2002.Technical specification for media gateway - ATM trunk equipnent...

行业标准2023.08.02

YD/T 1249-2003.The Technical Requirements of Integrated Intelligent Network Syst...

行业标准2023.08.02

YD/T 1248.3-2004.Short message service based on PSTN Technique requirements of s...

行业标准2023.08.02