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YD/T 5159-2007 via email in VALID please email coc@codeofchina.com for quotation
YD/T 2560.2-2013 via email in VALID please email coc@codeofchina.com for quotation
YD/T 2021-2009 Security technology specification for mobile network management system via email in VALID please email coc@codeofchina.com for quotation
YD/T 2606-2013 Technical requirements for adaption layer of No.7 signalling interworking with IP-Message Transfer Part(MTP)level 3 user adaption layer (M3UA) 1594 (USD) via email in 1 business day VALID
YD/T 1747-2013 via email in ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1369.2-2006 Technical requirements for Iub interface of 2GHz TD-SCDMA digital cellular mobile communication network part 2:layer 1 75 (USD) via email in 1-3 business day VALID
YD 1139-2001 Requirement and Measurement Methods of Electromagnetic Compatibility for 900/1800MHz Digital Cellular Telecommunications System Part 2:Base Station and Ancillary Equipment 435 (USD) via email in 1-3 business day ABOLISHED
YD/T 768-1995 330 (USD) via email in 1-3 business day
YD/T 1594-2007 Testing Methods for 2GHz TD-SCDMA/WCDMA Mobile Communication Network Mobile Softswitch Mc Interface between MSC Server and MGW (Phase Ⅱ) 1500 (USD) via email in 1-10 business day VALID
YD 5123-2005 Provisional Specification of Engineering Supervision for Long-Haul Optical Fiber Cable Line 735 (USD) via email in 1-5 business day ABOLISHED
YD/T 1272.1-2003 Optical fiber connector Parttt 1:type LC 315 (USD) via email in 1-3 business day ABOLISHED
YD/T 1719-2007 2GHz TD-SCDMA Digital Cellular Mobile Communication Network Technical Specification of HSDPA RAN via email in ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1397-2005 900/1800MHz TDMA digital cellular mobile communication network test methods for LCS service equipment:SMLC and GMLC 810 (USD) via email in 1-8 business day VALID
YD/T 5033-2005 Acceptance Specifications of Videoconference System Engineering 405 (USD) via email in 1-3 business day ABOLISHED
YD/T 1102-2001 ATM Based Multimedia Broadband Netword Specification-Network performance 285 (USD) via email in 1-3 business day VALID
YDN 098-1999 270 (USD) via email in 1-3 business day VALID
YD/T 1428.6-2005 Testing methods for digital cellular mobile telecommunication network CAMEL Application Part (CAP)(CAMEL3)-SCP PS Part 4155 (USD) via email in 1-10 business day VALID
YD/T 850-1996 105 (USD) via email in 1-3 business day
YD/T 5173-2009 via email in ABOLISHED please email coc@codeofchina.com for quotation
YD 5076-2014 via email in 1 business day VALID please email coc@codeofchina.com for quotation
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