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Standard No. Title Price(USD) Delivery Status Add To Cart
YD/T 778-2006 Optical fiber distribution frames 225 (USD) via email in 1-3 business day ABOLISHED
YD/T 1584.4-2007 Technical Specification for 2GHz Digital Cellular Mobile Communications Network Management General Part 4 CORBA based Interface Design via email in VALID please email coc@codeofchina.com for quotation
YD/T 841.1-2008 Plastic Pipe for Buried Communication Conduit Part 1:General 210 (USD) via email in 1-3 business day ABOLISHED
YD/T 1157-2001 The Transfer of Calling Party Number between Operators 285 (USD) via email in 1-3 business day VALID
YD/T 1982-2009 Technical requirements for ISC/Ma interface in IMS system in mobile communication network via email in VALID please email coc@codeofchina.com for quotation
YD/T 1424.2-2005 Technical requirements for digital cellular communication network equipment Service Switch Point(SSP)(CAMEL3)-PS domain part 375 (USD) via email in 1-3 business day VALID
YDN 104-1999 915 (USD) via email in 1-8 business day VALID
YD/T 910.3-1997 900/1800 MHz TDMA Digital Cellular Mobile Telecommunication Network Technical Specification of Mobile Services Swiching Center-Base Station 1245 (USD) via email in 1-10 business day VALID
YD/T 1638-2007 Technical Specification for IPv4 Networks and IPv6 Networks Inter-networking Between Networks via email in VALID please email coc@codeofchina.com for quotation
YD/T 1639-2007 Security Specification and Testing Methods for the Short Message Centre Equipments and Short Message Gateway Equipments via email in VALID please email coc@codeofchina.com for quotation
YD/T 657-1994 180 (USD) via email in 1-3 business day
YD/T 2602-2013 Protocol for BNAS service backup 700 (USD) via email in 1 business day VALID
YD/T 2561.2-2013 via email in VALID please email coc@codeofchina.com for quotation
YD/T 863-1996 120 (USD) via email in 1-3 business day ABOLISHED
YD/T 728-1994 120 (USD) via email in 1-3 business day
YD/T 2007-2009 Function and architecture for the Unified IMS via email in VALID please email coc@codeofchina.com for quotation
YDN 039-1997 Test Specifications for Transaction Capability Part in National NO.7 Signaling Mode 4320 (USD) via email in 1 business day VALID
YD/T 1141-2007 Testing Specification for Giga Bit Ethernet LAN Switch via email in VALID please email coc@codeofchina.com for quotation
YD/T 702-1993 195 (USD) via email in 1-3 business day ABOLISHED
YD/T 1220-2002 800MHz CDMA digital cellular mobile communication network protocol technical specification for the interface of Extended Short Message Entities(ESMEs)and Message Centres(MCs) 1110 (USD) via email in 1-8 business day VALID
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