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YD/T 855.22-1996 660 (USD) via email in 1-5 business day VALID
YD/T 3241-2017 Technical requirements for constrained application protocol(CoAP) via email in VALID please email coc@codeofchina.com for quotation
T/CCSA 208-2018 ICT framework and reference model of smart city via email in VALID please email coc@codeofchina.com for quotation
YD/T 1928.1-2009 Softswitch Network Management System Technical Specification Part 1:General Technical Requirements via email in VALID please email coc@codeofchina.com for quotation
YD/T 1290.2-2005 Technical requirements of peer to peer short message interworking between networks Part2:Interworking between PSTN and PSTN short message service 105 (USD) via email in 1-3 business day ABOLISHED
YD/T 1767.4-2009 Technical Requirements for Automatically Switched Optical Network (ASON) Management Part 4: EMS-NMS Interface Common Information Model via email in VALID please email coc@codeofchina.com for quotation
YD/T 2786.2-2017 Technical requirements for multi-service IP/MPLS bearer betwork management Part 2:NMS system function via email in VALID please email coc@codeofchina.com for quotation
YD/T 3305-2017 Testing specification of constrained application protocol (CoAP) via email in VALID please email coc@codeofchina.com for quotation
YD/T 1522.2-2006 Technical Requirements for Session Initiation Protocol Part 2:Applications about call control based on SIP 750 (USD) via email in 1-5 business day VALID
YD/T 2093-2018 Security protection testing requirements for the online business hall via email in VALID please email coc@codeofchina.com for quotation
YD/T 1402-2005 The general technique requirement of IP network interconnection 240 (USD) via email in 1-3 business day ABOLISHED
YD/T 2336.3-2017 Technical requirements for packet transport network management Part 3: EMS-NMS interface function via email in VALID please email coc@codeofchina.com for quotation
YD/T 1393-2005 Testing methods of Wireless Application Protocol (WAP) gateway 885 (USD) via email in 1-8 business day VALID
YD/T 1611.1-2007 Technical Requirements for Management Interface of IP Network Part 1:General Principles via email in VALID please email coc@codeofchina.com for quotation
YD/T 2016.2-2009 IPTV OSS Management Interface Technical Specification Part 2:bearing network via email in VALID please email coc@codeofchina.com for quotation
YD/T 855.1-1996 1185 (USD) via email in 1-8 business day VALID
YD/T 1289.5-2007 Technical Specification for SDH Transport Network Management-Part 5:EMS-NMS The Generic Information Model via email in VALID please email coc@codeofchina.com for quotation
YD/T 1858-2009 Digital Cellular Mobile Telecommunication Network Generic Authentication Architecture for 2GHz TD-SCDMA/WCDMA (Phase 2) 1410 (USD) via email in 1-10 business day VALID
YD/T 1407-2005 Technical specification and test method for interconnecting communication quality of internet exchange (NAP) 210 (USD) via email in 1-3 business day VALID
YD/T 3227-2017 Function technical requirement of GSM/WCDMA network performance evaluation and monitoring system based on the user perception via email in VALID please email coc@codeofchina.com for quotation
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