Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
YDN 071-1997 Signalling Test Specifications for Interface Between Mobile Service Switching Center and Base Station Subsystem of 900/1800MHz TDMA Digital Cellular Mobile Communications Network - Unit 2: Phase II Test Specification $345.00 via email in 1~5 business day valid
YDN 072-1997 Signalling Test Specifications for Mobile Application Part of 900/1800 MHz TDMA Digital Cellular Mobile Communications Network - Unit 2: Phase II Test Specification $1410.00 via email in 1~3 business day valid
YDN 077-1997 Technical System of China Public Multimedia Communications Network $600.00 via email in 1~3 business day valid
YDN 088-1998 Technical System of Auto Exchange Telephone (Digital) Network $900.00 via email in 1~3 business day abolished
YDN 089-1998 No.7 Signaling Network System $270.00 immediately valid
YDN 099-1998 Technical System of Phototiming Transport Network $2790.00 via email in 1~3 business day valid
YDN 112-1999 China Public Packet Switched Data Network Technology System (Amendment)? $1270.00 via email in 1~5 business day valid
YDN 113-1999 GSM No.7 Signaling Network Technology System? $670.00 via email in 1~5 business day valid
YDN 122-1999 No.7 Signaling Mode Broadband Signaling Connection Control Part $210.00 via email in 1~3 business day valid
ZBBZH/XW $1455.00 via email in 1~5 business day valid
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