Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 1044-2000 The General Technical Requirement of IP telephony an IP Fax Services 975.0 via email in 1~3 business day valid
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 1248.3-2004 Short message service based on PSTN Technique requirements of short message centre 450.0 via email in 1~5 business day valid
YD/T 1264-2003 General technical requirement of IP telephony and IP fax services:Phase two 2400.0 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
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
YD/T 1196-2002 Technical specification of distance learning on IP network 465.0 via email in 1~5 business day valid
YD/T 1895.2-2009 Mobile Network Service Dial Testing Management Technical Requirement Part 2:Dail Testing Management System And Dail Testing Terminal Equipment Inteface Specification 570.0 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YD/T 1039.1-2000 375.0 via email in 1~5 business day superseded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 1345-2005 Technical Requirements for SDH - Based MSTP Embedded with RPR 300.0 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 1620.4-2007 SDH-based MSTP Network Management Technical Specification Part 4:EMS-NMS Interface Common Information Model 765.0 via email in 1~3 business day valid
YDN 115.4-1999 Test Specification for China Intelligent Network Services (Mass Calling Service) 900.0 via email in 1~10 business day valid
YDN 111-1999 Technical Requirements for Account Card Call Service (No. 300) in Intelligent Network 300.0 via email in 1~5 business day valid
GF 009-1994 Technical specification for release of call Forwarding , voice mailbox and telephone card,etc. 810.0 via email in 1~8 business day valid
YD/T 1039.2-2000 900/1800MHz TDMA Digital Cellular Mobile Telecommunication Network Short Message Center Equipment Specification Part two:Cell Broadcast short message Service 375.0 via email in 1~3 business day superseded
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