Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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YD/T 1291-2003 Protocol of peer to peer short message interworking between networks 150.0 via email in 1~3 business day valid
YD/T 1880-2009 The Technical Requirement of Softswitch and Circuit Switching Network Interworking between Networks 120.0 via email in 1~3 business day valid
YD/T 947-1998 Upper layer protocol profiles for the Q3 and X interface 225.0 via email in 1~3 business day valid
YD/T 1323-2004 Technical requirements for access network Asymmetric Digital Subscriber Line (ADSL) 1800.0 via email in 1~3 business day valid
YD/T 2019.1-2009 Test method for broadband customer network equipment based on public telecommunication network Part 1:Gateway 570.0 via email in 1~3 business day valid
YD/T 1608-2007 Technical Requirements for Media Gateway Control Protocol(MGCP) 1035.0 via email in 1~3 business day valid
YD/T 1203-2002 Technical specification of signalling gateway for No.7 signalling and IP 270.0 via email in 1~3 business day valid
YD/T 1530-2006 Technical Requirements For Access Network Extended bandwidth 2nd-generation Asymmetric Digital Subscriber Line(ADSL2+) 1095.0 via email in 1~3 business day valid
YD/T 1996.1-2009 Technical requirements for access network very high speed digital subscriber line 2 (VDSL2) Part 1: General requirements 420.0 via email in 1~3 business day valid
YD/T 1145-2001 Network Management Interface Testing Method Specification 600.0 via email in 1~8 business day valid
YD/T 1191-2002 Technical specification of adaption layer for No.7 signalling interworking with IP Message Transfer Part (MTP)lever 2 Peer-to-peer Adaption layer(M2PA) 330.0 via email in 1~3 business day valid
YD/T 753.2-1995 Domestic Satellite Communication 32kbit/S ADPCM Technical Requirement for Networking of SCPC Voice VSAT System 330.0 via email in 1~3 business day valid
YD/T 1106-2001 900/1800MHz TDMA Digital Cellular Mobile Communication Network Technical Specification for GPRS(General Packet Radio Service)Base Station System-Serving GPRS Support Node (SGSN)Interface (Gb interface) 975.0 via email in 1~10 business day valid
YD/T 1443-2006 Technical Requirements of Generic Framing Procedure(GFP) 480.0 via email in 1~3 business day abolished
YD/T 1640-2007 Technical Specification for Softswitch and Digital Trunking Mobile Communication System Inter-working between Networks 120.0 via email in 1~3 business day valid
YDB 008.3-2007 IP QoS Signalling Control Interface Protocol - Part 3: Resource Control Protocol of Connection Control Interface 330.0 via email in 1~3 business day valid
YD/T 1805-2008 Test Method for Assistant Testing System Used for Interworking between Networks 390.0 via email in 1~3 business day valid
YD/T 1338-2005 The technical requirement of called party number for inter-public telecom network 270.0 via email in 1~3 business day valid
YD/T 2049-2009 Test method of security for access network equipment——Digital subscriber line access multiplexer 300.0 via email in 1~3 business day valid
YD/T 1185-2002 Access network technical specifications-Single-pair High bit rate Digital Subscriber Line(SHDSL) 1215.0 via email in 1~10 business day valid
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