2025-12-15 216.73.216.89
Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Standard No. Title Price(USD) Delivery Status Add to Cart
YD/T 1248.4-2005 Part Ⅳ：Test methods of short message centre based on PSTN 3090.0 via email in 1~5 business day valid,,2005-11-1
YD/T 1640-2007 Technical Specification for Softswitch and Digital Trunking Mobile Communication System Inter-working between Networks 120.0 via email in 1~3 business day valid,,2007-12-1
YD/T 1637-2007 Technical Specification and Testing Methods for N-frequency Capable Equipments of 2GHz TD-SCDMA Digital Cellular Mobile Communication Network 510.0 via email in 1~3 business day valid,,2007-5-16
YD/T 1881-2009 The Technical Requirement of Protocal between Different Operators Softswitch Network 390.0 via email in 1~5 business day valid,,2009-9-1
YD/T 1543.1-2007 Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network Iu Interface (Phase Ⅰ)Part 1:General 250.0 via email in 1~3 business day valid,,2007-5-16
YD/T 1985-2009 Testing methods for IMS system equipments of mobile telecommunication network 3330.0 via email in 1~3 business day valid,,2010-5-1
GB/T 11597-1999 Procedure for the exchange of control information and user data between a packet assembly /disassembly(PAD) facility and a packet mode DTE or another PAD 240.0 via email in 1~3 business day valid,,2000-6-1
YD/T 1546-2007 2GHz WCDA Digital Cellular Mobile Communication Network—Uu Interface Technical Specification of RRC 10890.0 via email in 1~3 business day valid,,2007-5-16
YD/T 2039-2009 Authentication mechanism of end-to-end data communication for application in Mobile Network 480.0 via email in 1~3 business day valid,,2010-1-1
YD/T 1584.4-2007 Technical Specification for 2GHz Digital Cellular Mobile Communications Network Management General Part 4 CORBA based Interface Design 1860.0 via email in 1~3 business day valid,,2007-5-16
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YD/T 1248.4-2005 Part Ⅳ：Test methods of short message centre based on PSTN 
  Issued on: 2005-05-11   Price(USD): 3090.0
YD/T 1640-2007 Technical Specification for Softswitch and Digital Trunking Mobile Communication System Inter-working between Networks 
  Issued on: 2007-7-20   Price(USD): 120.0
YD/T 1637-2007 Technical Specification and Testing Methods for N-frequency Capable Equipments of 2GHz TD-SCDMA Digital Cellular Mobile Communication Network 
  Issued on: 2007-5-16   Price(USD): 510.0
YD/T 1881-2009 The Technical Requirement of Protocal between Different Operators Softswitch Network 
  Issued on: 2009-06-15   Price(USD): 390.0
YD/T 1543.1-2007 Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network Iu Interface (Phase Ⅰ)Part 1:General 
  Issued on: 2007-5-16   Price(USD): 250.0
YD/T 1985-2009 Testing methods for IMS system equipments of mobile telecommunication network 
  Issued on: 2009-12-11   Price(USD): 3330.0
GB/T 11597-1999 Procedure for the exchange of control information and user data between a packet assembly /disassembly(PAD) facility and a packet mode DTE or another PAD 
  Issued on: 1999-11-11   Price(USD): 240.0
YD/T 1546-2007 2GHz WCDA Digital Cellular Mobile Communication Network—Uu Interface Technical Specification of RRC 
  Issued on: 2007-5-16   Price(USD): 10890.0
YD/T 2039-2009 Authentication mechanism of end-to-end data communication for application in Mobile Network 
  Issued on: 2009-12-11   Price(USD): 480.0
YD/T 1584.4-2007 Technical Specification for 2GHz Digital Cellular Mobile Communications Network Management General Part 4 CORBA based Interface Design 
  Issued on: 2007-5-16   Price(USD): 1860.0
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