ISO/IEC 15991 : 2003(R2008)现行
INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - SPECIFICATION, FUNCTIONAL MODEL AND INFORMATION FLOWS - CALL PRIORITY INTERRUPTION AND CALL PRIORITY INTERRUPTION PROTECTION SUPPLE
出版：International Organization for Standardization
专家解读视频
Defines the Supplementary Services Call Priority Interruption (SS-CPI) and Call Priority Interruption Protection (SS-CPIP). Applicable to various basic services supported by Private Integrated Services Networks (PISN).
NEN ISO/IEC 15991 : 2003 - Identical
CSA ISO/IEC 15991 : 2004 (R2019) - Identical
DS EN 301655 : 2006 - Identical
DIN EN 301655 : 2004 - Identical
CSA ISO/IEC 15991 : 2004 - Identical
NEN ISO/IEC 15991 : 2003 - Identical
BS ISO/IEC 15991 : 1998 - Identical
02/645140 DC : DRAFT MAR 2002 - Identical
DIN EN 301655 : 2004 - Corresponds
CSA ISO/IEC 15991 : 2004 - Identical
CSA ISO/IEC 15991 : 2004 - Identical
CSA ISO/IEC 15991 : 2004 (R2019) - Identical
DS EN 301655 : 2006 - Identical
CSA ISO/IEC 15991 : 2004 : R2014 - Identical
