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YD/T 1915-2009 Technical Requirements for IPv6--Mobile IPv6 Fast Handover via email in VALID please email coc@codeofchina.com for quotation
GB/T 7609-1995 General test method for transmission performance of PCM voice channel in telecommunication network via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YD/T 1476-2006 Technical Specification for BGP/MPLS VPN (USD) via email in 1-3 business day VALID
YD/T 1470-2006 Technical Requirements of Telephony Routing over IP (TRIP) (USD) via email in 1-5 business day VALID
YD/T 1941-2009 Content Switch Test Method via email in VALID please email coc@codeofchina.com for quotation
GB/T 13995-1992 Technical requirements for TDM/FDM 60-channel transmultiplexing equipment via email in 1-3 business day please email coc@codeofchina.com for quotation
GB/T 21645.1-2008 Technical requirements for Automatically Switched Optical Network - Part 1: Architecture and general requirements (USD) via email in 1-10 business day VALID
GB/T 32398-2015 Chinese internet email address—Technical specification for SMTP extension to support (USD) via email in 1-3 business day VALID
GB/T 15629.3-1995 Information processing systems-Local area networks-Part 3: Carrier sense multiple access with collision detection(CSMA/CD)access method and physical layer specifications via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1614-2007 Security Requirements for Public IP Network—Access Control based Digital Certificate via email in VALID please email coc@codeofchina.com for quotation
T/CCSA 232-2018 Smart TV - Technical specification on test method of automatic speech interaction via email in VALID please email coc@codeofchina.com for quotation
GB/T 19897.2-2005 Automatic meter reading system lower layer communication protocol—Part 2:Use of area networks on twisted pair with carrier signalling via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1612-2007 Interconnection and Interoperation Technique Requirements for IPv4-IPv6 Transition via email in VALID please email coc@codeofchina.com for quotation
YD/T 947-1998 Upper layer protocol profiles for the Q3 and X interface (USD) via email in 1-3 business day VALID
GB/T 3384-1982 Parameters of interface for the analogue carrier systems over the network (USD) via email in 1-3 business day ABOLISHED
GB/T 13158-1991 Compatibility test procedures of clock and synchroni-zation equipment of digital switch introduced into di-gital network (USD) via email in 1-3 business day VALID
YD/T 1906-2009 Security Requirerments of Core Router Equipment Supporting IPv6 via email in VALID please email coc@codeofchina.com for quotation
YD/T 3237-2017 Service level agreement requirements for domain name registration system via email in VALID please email coc@codeofchina.com for quotation
GB/T 26268-2010 Test method for network intrusion detection system (USD) via email in 1-3 business day VALID
GB/T 11599-1989 Use on public data networks of data terminal equipment(DTE) which is designed for interfacing to synchronous V-series MODEMS (USD) via email in 1-3 business day ABOLISHED
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