ISO/IEC 21408 : 2003(R2015)現行
INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - INTER-EXCHANGE SIGNALLING PROTOCOL - SIMPLE DIALOG SUPPLEMENTARY SERVICE
出版：International Organization for Standardization
專家解讀視頻
Defines the signalling protocol for the support of the Simple Dialog supplementary service (SS-SD) at the Q reference point between Private Integrated Services Network Exchanges (PINXs) connected together within a Private Integrated Services Network (PISN).
DS EN 301921 : 2006 - Identical
DIN EN 301921 : 2004 - Corresponds
CSA ISO/IEC 21408 : 2004 : R2012 - Identical
CSA ISO/IEC 21408 : 2004 - Identical
CSA ISO/IEC 21408 : 2004 : R2017 - Identical
CSA ISO/IEC 21408 : 2004 - Identical
NEN ISO/IEC 21408 : 2003 - Identical
DIN EN 301921 : 2004 - Identical
DS EN 301921 : 2006 - Identical
NEN ISO/IEC 21408 : 2003 - Identical
CSA ISO/IEC 21408 : 2004 - Identical
