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YD/T 1577-2007 Technical Specification for 2GHz cdma2000 Digital Cellular Mobile Communication Networks:High Rate Packet Data(HRPD)(Phase Ⅰ)Air Interface via email in ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1509-2007 Technical Specification for Nc Interface between MSC Servers of 2GHz TD-SCDMA/WCDMA Communication Network (Phase Ⅱ) via email in VALID please email coc@codeofchina.com for quotation
YD/T 1448-2006 General Technical Requirements for Broadband Customer Network Based on Telecommunication Network (USD) via email in 1-3 business day VALID
YD/T 1533.3-2007 Technical Requirements for the Multimedia Message Service based on Fixed Network Part 3:Multimedia Message Service Terminal via email in VALID please email coc@codeofchina.com for quotation
YDB 104-2012 Technical requirements of high altitude base station via email in VALID please email coc@codeofchina.com for quotation
YD/T 1620.3-2007 SDH-based MSTP Network Management Technical Specification Part 3:EMS-NMS Interface Function via email in VALID please email coc@codeofchina.com for quotation
YD/T 1548.2-2007 Testing Method for 2GHz WCDMA Digital Cellular Mobile Communication Network User Equipment (Phase Ⅱ) Part 2:Network Compatibility Test via email in ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1543.1-2007 Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network Iu Interface (Phase Ⅰ)Part 1:General via email in VALID please email coc@codeofchina.com for quotation
YD/T 1543.5-2007 Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network Iu Interface (Phase Ⅰ)Part 5:Data Transport&Transport Signaling via email in VALID please email coc@codeofchina.com for quotation
YD/T 1563-2007 Testing Methods for High Rate Packet Data(HRPD)A Interface (Phase Ⅰ)in 2GHz cdma2000 Digital Cellular Mobile Communication Network via email in ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1582-2007 2GHz cdma2000 Digital Cellular Mobile Communication Networks:Signaling Link Access Control (LAC)of Air Interface Specification via email in ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1880-2009 The Technical Requirement of Softswitch and Circuit Switching Network Interworking between Networks via email in VALID please email coc@codeofchina.com for quotation
YD/T 1593-2007 Technical Specification for Mc Interface between MSC Server and NGW of 2GHz TD-SCDMA/WCDMA Mobile Communication Network (Phase Ⅱ) (USD) via email in 1-8 business day VALID
YD/T 1569-2007 Testing Methods for 2GHz cdma2000 Digital Cellular Mobile Communication Network:Switching Sub-system via email in VALID please email coc@codeofchina.com for quotation
YD/T 1550.1-2007 Technical Specification for 2GHz WCDMA Digital Cellular Mobile Communication Network Iub Interface(Phase I)Part 1:General via email in VALID please email coc@codeofchina.com for quotation
YD/T 1555-2007 Technical Requirements for A Interface in 2GHz cdma2000 Digital Cellular Mobile Communication Network via email in ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1584.2-2007 Technical Specification for 2GHz Digital Cellular Mobile Communications Network Management General Part 2 Interface Function via email in VALID please email coc@codeofchina.com for quotation
YD/T 1620.2-2007 SDH-based MSTP Network Management Technical Specification Part 2:NMS Function via email in VALID please email coc@codeofchina.com for quotation
GB/T 11595-1999 Interface between data terminal equipment (DTE)and data circuit-terminating equipment (DCE) for terminals operating in the packet mode and connected to public data networks by dediccated cireuit (USD) via email in 1-10 business day VALID
YD/T 1583-2007 2GHz cdma2000 Digital Cellular Mobile Communication Networks:Upper Layer (Layer 3)Signaling of Air Interface Specification via email in ABOLISHED please email coc@codeofchina.com for quotation
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