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YD/T 1814-2008 Remote Management for Broadband Customer Network based onPublic TeleCommunication Network Part 1:General Requirement via email in VALID please email coc@codeofchina.com for quotation
YD/T 1609-2007 Testing Methods for Media Gateway Control Protocol(MGCP) via email in VALID please email coc@codeofchina.com for quotation
YD/T 1055-2005 Test method for access network equipment --asymmetric ditigal subscriber line(ADSL) 930 (USD) via email in 1-8 business day VALID
YD/T 912-1997 Lower layer protocol profiles forthe Q3 and X interface 600 (USD) via email in 1 business day VALID
YD/T 1290.1-2003 General technical requirements of peer to peer short message interworking between networks Part 1:Interworking between PSTN and PLMN 120 (USD) via email in 1-3 business day ABOLISHED
GB/T 17904.1-1999 ISDN user-network interface data link layer specification and conformance testing method Part 1:User-network interface data link layer specification via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
YDB 155-2014 Technicalrequirementsfor residential gateway with set-card separation and gateway SIMcard via email in VALID please email coc@codeofchina.com for quotation
YD/T 1561-2007 Technical Specification for 2GHz cdma2000 Digital Cellular Mobile Communication netowrk Equipment High Rate Packet Data(Phase Ⅰ)Access Network via email in VALID please email coc@codeofchina.com for quotation
YD/T 1576.2-2007 Testing Methods for 2GHz cdma2000 Digital Cellular Mobile Communication Network Equipment:Mobile Station Part Ⅱ Protocol Conformance Test via email in ABOLISHED please email coc@codeofchina.com for quotation
YD/T 1002-1999 Frame relaying bearer service interworking 510 (USD) via email in 1-5 business day VALID
YD/T 1144-2001 Technical Specification of the Signaling Transfer Point in National NO.7 Signaling Network 285 (USD) via email in 1-3 business day VALID
SJ 20841-2002 Inferface requirement for crypto-equipment for generation Ⅱ radio duplex mobile communication system 300 (USD) via email in 1-3 business day VALID
YD/T 1316-2004 Adaptation layer test method for No.7 signaling system interworking with IP--Message Transfer Part (MTP) Level 3 User Adaptation Layer (M3UA) 3705 (USD) via email in 1-10 business day VALID
YD/T 1983-2009 Test method for ISC/Ma interface in IMS system in mobile communication network via email in VALID please email coc@codeofchina.com for quotation
YDN 053.1-1997 600 (USD) via email in 1-5 business day VALID
YD/T 1162.2-2001 ATM MPLS Technical Specification 180 (USD) via email in 1-3 business day VALID
YD/T 1640-2007 Technical Specification for Softswitch and Digital Trunking Mobile Communication System Inter-working between Networks via email in VALID please email coc@codeofchina.com for quotation
YD/T 1147-2001 Access Network Management Interface Specification-ADSL Part 2055 (USD) via email in 1-10 business day VALID
YD/T 971-1998 Network specific data protocol stacks for multimedia conferencing 450 (USD) via email in 1-3 business day VALID
GB/T 16654-1996 Technical requirements for ISDN(2B+D)NT1 user-network interface equipment via email in 1-3 business day please email coc@codeofchina.com for quotation
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