Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 1288-2003 Technical specification for IP telephony interworking based on H.323 and SIP 750.0 via email in 1~3 business day valid
YD/T 1377.2-2005 Testing methods of service and protocol of peer to peer short message interworking between networks.Part2 : Tesing methods of peer to peer short message interworking between PSTN and 525.0 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YD/T 1039.1-2000 375.0 via email in 1~5 business day superseded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 1926.2-2009 IT Operations and Maintenance Service Management Technical Specification Part 2:Managed Service Definition 780.0 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 via email in business day abolished
YD/T 1388.1-2005 Technical requirements of the softswitch based services part1:Services system 225.0 via email in 1~3 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 1388.4-2005 Technical requirements of the softswitch based services part 4:Multiparty call services 315.0 via email in 1~5 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
YD/T 1377.1-2005 Testing methods of service and protocol of peer to peer short message interworking between networksPart1 : Testing methods of peer to peer short message interworking between PSTN and 675.0 via email in 1~3 business day valid
GB/T 32406-2015 Technical requirements of M2M platform for logistic information service in mobile network 210.0 via email in 1~3 business day valid
YD/T 2024-2009 Technical Requirements of Increasing Trunk Capacity for Internet Connections 150.0 via email in 1~3 business day valid
YD/T 1357-2005 The test specification of intelligent netowrk equipment Integrated Service Control Point(ISCP) 2175.0 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 1286-2003 Technical specification of supplement services for IP telephony 1350.0 via email in 1~3 business day valid
YD/T 1346-2005 Test Specifications for SDH-based MSTP Embedded with RPR 930.0 via email in 1~10 business day valid
YD/T 2009-2009 Technical Requirement of Services based on the Unified IMS Customized Multimedia Ringing Service (Release 1) via email in business day valid
YD/T 1388.5-2005 Technical requirements of the softswitch based services part 5 : Click to dial services 360.0 via email in 1~3 business day valid
YDN 104-1999 ATM Network Traffic Control and Congestion Control Functions? 915.0 via email in 1~10 business day valid
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