2025-12-25 10.8.118.215
Code of China Chinese Classification Professional Classification ICS Classification Latest Value-added Services

Code of China
Chinese National Standard List: Communication network number, signal and connection

YD/T 1663-2007 Testing Methods for Bearer Independent Call Control 
  Issued on: 2007-7-20   Translation Price(USD): 1020.0
YD/T 1662-2007 Testing Methods for National No.7 Signalling System——GSM Mobile Telephone User Part (MTUP) 
  Issued on: 2007-7-20   Translation Price(USD): 1050.0
YDC 048-2007 Overall Technical Specification for ENUM 
  Issued on: 2007-3-16   Translation Price(USD): 750.0
YD/T 1309-2004 Bearer independent call bearer control specification 
  Issued on: 2004-2-9   Translation Price(USD): 1500.0
YD/T 1304-2004 Test specification for national No.7 signalling system - Message Transfer Part (MTP)and Telephone User Part (TUP) 
  Issued on: 2004-2-9   Translation Price(USD): 4350.0
YD/T 1296-2003 Technical specification for public IP voice switch 
  Issued on: 2003-12-30   Translation Price(USD): 390.0
YD/T 1239-2002 Access Network Technical Specifications-Very-high-speed Digital Subscriber Line 
  Issued on: 2002-11-08   Translation Price(USD): 2250.0
YD/T 1193.3-2002 Bearer independent call control specification - Part3 : procedure of BICC 
  Issued on: 2002-6-21   Translation Price(USD): 900.0
YD/T 1193.1-2002 Bearer independent call control specification-Part 1:functional of BICC 
  Issued on: 2002-06-21   Translation Price(USD): 160.0
GF 018-1995 Numbering for automatic telephone in public phone network 
  Issued on: 1996-01-01   Translation Price(USD): 190.0
YD/T 958-1998 Digital subscriber signalling system No.1(DSS1)-signalling specification for frame mode basic call control 
  Issued on: 1998-08-07   Translation Price(USD): 910.0
YD/T 913-1997 Digital subscriber signalling system No.1(DSS1)－typical DSS1 service indicator codings for ISDN telecommunications services 
  Issued on: 1997-12-2   Translation Price(USD): 630.0
YD/T 887-1997 Regulations for session initiation period of data transmission over public telephone network 
  Issued on: 1997-02-28   Translation Price(USD): 130.0
GB/T 14401-1993 between mobile station and base station and mobile services switching centre in public land mobile communication network at 450MHz band 
  Issued on: 1993-5-17   Translation Price(USD): 450.0
GB 3971.2-1983 Interoffice junction digital line signalling system for telephone automatic switching network 
  Issued on: 1983-12-15   Translation Price(USD): 150.0
GB 3379-1982 Interoffice direct signalling system for telephone automatic switching network 
  Issued on: 1982-01-02   Translation Price(USD): 570.0
GB 3377-1982 Multi frequency register signalling system for telephone antomatic switching network 
  Issued on: 1982-12-29   Translation Price(USD): 270.0
GB 3376-1982 Inband pulsing single frequency line signalling system for telephone automatic switching network 
  Issued on: 1982-12-29   Translation Price(USD): 224.0
GB 3380-1982 Ringing and tone for telephone automatic switching network 
  Issued on: 1982-12-29   Translation Price(USD): 90.0
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