EN 301 655 : 1.2.1现行
PRIVATE INTEGRATED SERVICES NETWORK (PISN); SPECIFICATION, FUNCTIONAL MODELS AND INFORMATION FLOWS; CALL PRIORITY INTERRUPTION AND CALL PRIORITY INTERRUPTION PROTECTION SUPPLEMENTARY SERVICE
出版：European Telecommunications Standards Institute
专家解读视频
Contains the specification, functional model and information flows for the Call priority interruption supplementary services.
ECMA 263 : 3ED 2001 - Corresponds
NBN EN 301 655 : 2004 - Identical
NF EN 301655 : 2004 - Identical
DS EN 301655 : 2006 - Identical
NEN EN 301655 : 2004 - Identical
PN EN 301 655 : 2005 - Identical
DIN EN 301655 : 2004 - Identical
