Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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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
GB 33473-2016 General technical requirements of handover interfacefor instant communication services 220.0 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 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 540.0 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
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 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 2009-2009 Technical Requirement of Services based on the Unified IMS Customized Multimedia Ringing Service (Release 1) 560.0 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
YD/T 1979.1-2009 Technical Requirements of Roaming from 3G to 2G Network and from 3G to 3G Network Managed by Different Operators Part 1:Roaming from TD-SCDMA to GSM/GPRS Network and Roaming from TD-SCDMA to TD-SCDMA Network 384.0 via email in business day valid
YD/T 1430-2006 Specification of interworking requirements for one number services 120.0 via email in 1~3 business day valid
YD/T 1933-2009 Technical Requirements of Services Based on the Unified IMS IP Centrex Service (Release 1) 270.0 via email in 1~3 business day valid
YD/T 2014-2009 Requirements of Unified Communications Services 120.0 via email in 1~3 business day valid
YD/T 1932-2009 Technical Requirements of Services based on the Unified IMS Identification Presentation and Restriction Service (Release 1) 330.0 via email in 1~3 business day valid
YD/T 1931-2009 Technical Requirements of Services based on the Unified IMS Call Forwarding Service (Release 1) 360.0 via email in 1~3 business day valid
YDB 006-2007 Technical Requirements for PSTN/ISDN Emulation Services in NGN 120.0 via email in 1~3 business day valid
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