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YD/T 1532-2006 Test Specification for IAD Based on Softswitch via email in VALID please email coc@codeofchina.com for quotation
GB/T 14733.9-2008 Terminology for telecommunication - Radio wave propagation 960 (USD) via email in 1-8 business day VALID
YD/T 1923-2009 The Requirements for MGCP-Based IP User Terminal Device via email in VALID please email coc@codeofchina.com for quotation
GB/T 20068-2006 Technical requirements of shipborne automatic identification system via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1557-2007 Technical Specification for 2GHz cdma2000 Digital Cellular Mobile Communication Network:Packet Data Equipment Part via email in VALID please email coc@codeofchina.com for quotation
YD/T 1603.4-2007 Testing Methods for 2GHz Digital Cellular Mobile Communications Network Management System (NMS)-Element Management System (EMS)Interface Information Model Consistency Test Part 4:cdma2000 Network Resource Model via email in VALID please email coc@codeofchina.com for quotation
YD/T 1385-2005 Technical specification for IAD based on softswitch 555 (USD) via email in 1-5 business day VALID
GB/T 26261-2010 General technical requirements of used telecommunication equipment appraisal 120 (USD) via email in 1-3 business day VALID
YD 309-1984 120 (USD) via email in 1-3 business day ABOLISHED
YD/T 567-1992 Technical Requirement and Test Method for Exchanger of Operating Service in Manual Toll Telephone Switching Equipments 30 (USD) via email in 1-3 business day VALID
YD/T 3281-2017 Technical requirements and test methods for HF frequency band radio monitoring receiver via email in VALID please email coc@codeofchina.com for quotation
YD 2001-1992 1320 (USD) via email in 1-10 business day VALID
YD/T 564-1992 Technical requirements and test methods for toll service boards (Toll recording boards enquiry desks) In manual toll telephone swiching eqiupments 75 (USD) via email in 1-3 business day VALID
GB/T 1417-1978 General terminology for telecommunications equipment 3060 (USD) via email in 1-10 business day VALID
GB/T 14617.3-2012 Propagation characteristics in land mobile service and fixed service—Part 3:Propagation characteristics of line-of-sight radio-relay communications systems 840 (USD) via email in 1-8 business day VALID
YD/T 568-1992 Technical Requirements and Test Methods for Relay in Manual Toll Telephone Switching Equipments 75 (USD) via email in 1-3 business day VALID
YD/T 1386-2005 Technical specification for media server based on softswitch 540 (USD) via email in 1-5 business day VALID
YD/T 565-1992 45 (USD) via email in 1-3 business day VALID
GB/T 20068-2017 Technical requirements of shipborne automatic identification system via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YD/T 1435-2006 Testing Methods for Softswitch Equipments 3075 (USD) via email in 1-10 business day ABOLISHED
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