GB/T 21049-2022
Han Xin code
GB/T 28505-2012
Technical specification of national No.7 signaling system 2Mbit/s high speed link
JR/T 0028-2006
Data elements for credit information service-Data elements of personal credit information service
YZ/T 0102-2004
Letter Card
YZ/Z 0003-2000
Medium-sized letter-box
YD/T 1408-2005
Test method of signaling gateway for No.7 signaling and IP
YZ/T 0113-2005
Red frame letter facing machine
DB64/T 1437-2017
YD/T 1126-2001
No.7 signalling system test specification-Signalling connection control part(SCCP)
JJF 1165-2007
Calibration Specification for SINAD Meters
JR/T 0117-2014
YD/T 1203-2002
Technical specification of signalling gateway for No.7 signalling and IP
YD/T 3302-2017
Technical requirements of LTE diameter signalling network
YD/T 1144-2001
Technical Specification of the Signaling Transfer Point in National No.7 Signaling Network
GB/T 21049-2007
Chinese-sensible code
YD/T 1195-2002
Test specification for No.7 signalling system-the 2Mbit/s high speed signalling link
YD/T 1748-2008
Security Protection Requirements for Signalling Network
HG/T 4388-2012
GF 010-1995
YD/T 1125-2001
National No.7 Signaling System Technical Specification-2Mbit/s High Speed Link