Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Standard No. Title Price(USD) Delivery Status Add to Cart
YD/T 1193.3-2002 Bearer independent call control specification - Part3 : procedure of BICC 900.0 via email in 1~3 business day valid
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
YD/T 1522.4-2009 Technical Requirements for Session Initiation Protocol Part 4 SIPs Applications about call control Based on Softswitch Network 345.0 via email in 1~3 business day valid
YD/T 913-1997 Digital subscriber signalling system No.1(DSS1)-typical DSS1 service indicator codings for ISDN telecommunications services 630.0 via email in 1~3 business day valid
YD/T 1938.2-2009 Test method for Session Initiation Protocol (SIP) Part 2:SIPs Applications about Call Control Basedon Softswitch Network 780.0 via email in 1~3 business day valid
YD/T 1193.1-2002 Bearer independent call control specification-Part 1:functional of BICC 165.0 via email in 1~3 business day valid
YD/T 1522.31-2009 Technical Requirements for Session Initiation Protocol Part 3 Interworking between ISUP and SIP-Supplement 1 180.0 via email in 1~3 business day valid
YD/T 1938.1-2009 Test method for Session Initiation Protocol (SIP) Part 1:Basic Session Initiation Protocol 4470.0 via email in 1~3 business day valid
YD/T 1239-2002 Access Network Technical Specifications-Very-high-speed Digital Subscriber Line 2250.0 via email in 1~10 business day valid
GF 018-1995 Numbering for automatic telephone in public phone network 490.0 via email in 1~3 business day abolished
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
YD/T 1662-2007 Testing Methods for National No.7 Signalling System——GSM Mobile Telephone User Part (MTUP) 1050.0 via email in 1~3 business day valid
GB/T 28510-2012 Technical specification of stream control transmission protocol 990.0 via email in 1~3 business day valid
YDC 048-2007 Overall Technical Specification for ENUM 750.0 via email in 1~3 business day valid
GB 3377-1982 Multi frequency register signalling system for telephone antomatic switching network 270.0 via email in 1~3 business day valid
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
GB/T 28524-2012 Media Gateway Control Protocol(MGCP) 1260.0 via email in 1~8 business day valid
GB/T 14401-1993 between mobile station and base station and mobile services switching centre in public land mobile communication network at 450MHz band 450.0 via email in 1~3 business day valid
YD/T 958-1998 Digital subscriber signalling system No.1(DSS1)-signalling specification for frame mode basic call control 915.0 via email in 1~10 business day valid
YD/T 1663-2007 Testing Methods for Bearer Independent Call Control 1020.0 via email in 1~3 business day valid
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