Code of China Chinese Classification Professional Classification ICS Classification Latest Value-added Services

Title Standard No. Implemented On
Basic Requirement of Transmission Impaiment Tolerance for Group 3 Document Facsimile on the Telephone NetworkYD/T 589-20062007-1-1
Technical Requirements of Generic Framing Procedure(GFP)YD/T 1443-20062006-10-1
Technical requirement and testing methods for the charging performance of exchange-mobile intelligent network partYD/T 1431-20062006-10-1
Technical requirements for IP telephony gatewayYD/T 1071-20062000-9-1
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