2024-11-24 3.144.42.233
Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
GA 330-2001 Transmission technology protocol of alarm for 351 MHz 224.0 via email in 1~3 business day valid,,2001-12-1
GB 3376-1982 Inband pulsing single frequency line signalling system for telephone automatic switching network 224.0 via email in 1~3 business day valid,,1983-10-1
GB 3377-1982 Multi frequency register signalling system for telephone antomatic switching network 270.0 via email in 1~3 business day valid,,1983-10-1
GB 3379-1982 Interoffice direct signalling system for telephone automatic switching network 570.0 via email in 1~5 business day abolished2005-10-14 ,,1983-10-1
GB 3380-1982 Ringing and tone for telephone automatic switching network 90.0 via email in 1~3 business day valid,,1983-10-1
GB 3971.2-1983 Interoffice junction digital line signalling system for telephone automatic switching network 150.0 via email in 1~3 business day valid,,1984-10-1
GB/T 14733.4-2012 Terminology for telecommunication switching and signalling in telecommunication 870.0 via email in 1~3 business day valid,,2013-2-1
GB/T 15409-1994 Frame structure for synchronous digital hierarchy signal 264.0 via email in 1~3 business day abolished2009-05-01,2009-5-1,1995-8-1
GB/T 15838-2008 Test methods for the performances of switching equipment clocks in digital network 420.0 via email in 1~5 business day valid,,2009-4-1
GB/T 28500-2012 Technical requirements of 900/1 800 MHz TDMA digital cellular mobile network signaling system No.7 ISUP 1740.0 via email in 1~3 business day valid,,2012-10-1
GB/T 28502-2012 Technical requirement of interworking between No.7 signalling and IP 600.0 via email in 1~3 business day valid,,2012-10-1
GB/T 28503-2012 Technical requirements of adaptation layer of No.7 signalling interworking with IP MTP2 user adaptation layer 810.0 via email in 1~3 business day valid,,2012-10-1
GB/T 28505-2012 Technical specification of national No.7 signalling system 2 Mbit/s high speed link 330.0 via email in 1~3 business day valid,,2012-10-1
GB/T 28506-2012 Technical specification for national No.7 signalling system—GSM mobile telephone user part (MTUP) 990.0 via email in 1~3 business day valid,,2012-10-1
GB/T 28510-2012 Technical specification of stream control transmission protocol 990.0 via email in 1~3 business day valid,,2012-10-1
GB/T 28524-2012 Media Gateway Control Protocol(MGCP) 1260.0 via email in 1~8 business day valid,,2012-10-1
GB/T 29198-2012 Technical requirements of adaptation layer of No.7 signalling interworking with IP—MTP2 peer-to-peer adaptation layer 480.0 via email in 1~3 business day valid,,2013-6-1
GB/T 40657-2021 Public telecom network—Test methods for smart home application 630.0 via email in 1~5 business day valid,,2022-5-1
GB/T 5442-1985 The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network 120.0 via email in 1~3 business day valid,,1986-6-1
GB/T 5443-1985 The test methods for the technical specifications of ringing and tone for automatic telephone switching network 244.0 via email in 1~3 business day valid,,1986-6-1
* Related standard quantity: * Page quantity: * Current: * First Previous Next End



Code of China
Search

GA 330-2001 Transmission technology protocol of alarm for 351 MHz 
  Issued on: 2001-10-15   Price(USD): 224.0
GB 3376-1982 Inband pulsing single frequency line signalling system for telephone automatic switching network 
  Issued on: 1982-12-29   Price(USD): 224.0
GB 3377-1982 Multi frequency register signalling system for telephone antomatic switching network 
  Issued on: 1982-12-29   Price(USD): 270.0
GB 3379-1982 Interoffice direct signalling system for telephone automatic switching network 
  Issued on: 1982-01-02   Price(USD): 570.0
GB 3380-1982 Ringing and tone for telephone automatic switching network 
  Issued on: 1982-12-29   Price(USD): 90.0
GB 3971.2-1983 Interoffice junction digital line signalling system for telephone automatic switching network 
  Issued on: 1983-12-15   Price(USD): 150.0
GB/T 14733.4-2012 Terminology for telecommunication switching and signalling in telecommunication 
  Issued on: 2012-11-5   Price(USD): 870.0
GB/T 15409-1994 Frame structure for synchronous digital hierarchy signal 
  Issued on: 1994-01-02   Price(USD): 264.0
GB/T 15838-2008 Test methods for the performances of switching equipment clocks in digital network 
  Issued on: 2008-10-07   Price(USD): 420.0
GB/T 28500-2012 Technical requirements of 900/1 800 MHz TDMA digital cellular mobile network signaling system No.7 ISUP 
  Issued on: 2012-6-29   Price(USD): 1740.0
GB/T 28502-2012 Technical requirement of interworking between No.7 signalling and IP 
  Issued on: 2012-6-29   Price(USD): 600.0
GB/T 28503-2012 Technical requirements of adaptation layer of No.7 signalling interworking with IP MTP2 user adaptation layer 
  Issued on: 2012-6-29   Price(USD): 810.0
GB/T 28505-2012 Technical specification of national No.7 signalling system 2 Mbit/s high speed link 
  Issued on: 2012-6-29   Price(USD): 330.0
GB/T 28506-2012 Technical specification for national No.7 signalling system—GSM mobile telephone user part (MTUP) 
  Issued on: 2012-6-29   Price(USD): 990.0
GB/T 28510-2012 Technical specification of stream control transmission protocol 
  Issued on: 2012-6-29   Price(USD): 990.0
GB/T 28524-2012 Media Gateway Control Protocol(MGCP) 
  Issued on: 2012-6-29   Price(USD): 1260.0
GB/T 29198-2012 Technical requirements of adaptation layer of No.7 signalling interworking with IP—MTP2 peer-to-peer adaptation layer 
  Issued on: 2012-12-31   Price(USD): 480.0
GB/T 40657-2021 Public telecom network—Test methods for smart home application  
  Issued on: 2021-10-11   Price(USD): 630.0
GB/T 5442-1985 The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network 
  Issued on: 1985-10-30   Price(USD): 120.0
GB/T 5443-1985 The test methods for the technical specifications of ringing and tone for automatic telephone switching network 
  Issued on: 1985-10-30   Price(USD): 244.0
About Us   |    Contact Us   |    Terms of Service   |    Privacy   |    Cancellation & Refund Policy   |    Payment
Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | QQ: 672269886
Copyright: TransForyou Co., Ltd. 2008-2040