Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 1702-2007 Reliability of Public IP Network IP Fast Reroute Framework 210.0 via email in 1~3 business day valid
YDN 119.2-1999 Test Specification of China Intelligent Network Equipment - Service Control Point (SCP) Part 390.0 via email in 1~3 business day valid
YD/T 1441-2006 Technical requirements of IPv4 mobility 450.0 via email in 1~3 business day valid
YD/T 1149-2001 IP Network Technical Requirement - Charging 195.0 via email in 1~3 business day valid
YDN 126-2009 Baseline requirements for network and information security of value-added telecommunication services 420.0 via email in 1~3 business day valid
YD/T 1039.1-2000 375.0 via email in 1~5 business day superseded
YD/T 1590-2006 The Technical Requirement of Echo and Echo Control for Inter-Public Telecom Network 210.0 via email in 1~3 business day valid
YDN 001-1996 Technical Requirements for 160 Telephone Message Service (Tentative Specifications) 570.0 via email in 1~3 business day valid
YD/T 2010-2009 Technical Requirements of Services based on the Unified IMS Multimedia Conferencing Service (Release 1) 1050.0 via email in 1~3 business day valid
YD/T 1883.1-2009 Technical Requirements and Testing Methods for Voice Service of the Fixed Softswitch Network Part 1:TG and SG Access Mode 540.0 via email in business day abolished
YD/T 1388.6-2005 Technical requirements of the softswitch based services part 6:Video multimedia services 465.0 via email in 1~5 business day valid
YD/T 1248.4-2005 Part Ⅳ:Test methods of short message centre based on PSTN 3090.0 via email in 1~10 business day valid
GF 009.1-1995 Technical specification for opening 200 telephone card business intelligent platform network 390.0 via email in 1~3 business day valid
YD/T 1056-2000 Requirement for Establishment of Network of Special Services for Different Kinds of Local Telephone Networks 240.0 via email in 1~3 business day valid
YD/T 1641-2007 Technical Specification for Internet Network Service Quality 270.0 via email in 1~3 business day valid
YD/T 1232-2002 800MHz CDMA digital cellular mobile telecommunication netwrok Wireless Intelligent Network (WIN)phasel:technical specification of Service Control Point (SCP)equipment 285.0 via email in 1~3 business day valid
YD/T 1431-2006 Technical requirement and testing methods for the charging performance of exchange-mobile intelligent network part 270.0 via email in 1~3 business day abolished
YD/T 1286-2003 Technical specification of supplement services for IP telephony 1350.0 via email in 1~3 business day valid
YD/T 1403-2005 The technical requirement and test method of service qualification of peer peer short message interworkding between networks 450.0 via email in 1~3 business day valid
YD/T 876-1996 Technical Requirement for Integrated Transmission Telecommunication Services in Subscriber Access Network 150.0 via email in 1~3 business day abolished
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