ISO/IEC 15052 : 2003(R2015)现行
INFORMATION TECHNOLOGY - TELECOMMUNICATIONS AND INFORMATION EXCHANGE BETWEEN SYSTEMS - PRIVATE INTEGRATED SERVICES NETWORK - INTER-EXCHANGE SIGNALLING PROTOCOL - RECALL SUPPLEMENTARY SERVICE
出版：International Organization for Standardization
专家解读视频
Defines the signalling protocol for supporting the Recall supplementary service (SS-RE) at the Q reference point between Private Integrated Services Network Exchange (PINXs) connected together within Private Integrated Services Network (PISN). Provides a supplementary service for redirecting a transferred call back to the served user if the call is not answered. Applies only following transfer by join, not after transfer by rerouting.
NEN ISO/IEC 15052 : 2003 - Identical
DS EN 301258 : 2006 - Identical
DIN EN 301258 : 2004 - Identical
CSA ISO/IEC 15052 : 2004 - Identical
CSA ISO/IEC 15052 : 2004 - Identical
DIN EN 301258 : 2004 - Corresponds
NEN ISO/IEC 15052 : 2003 - Identical
CSA ISO/IEC 15052 : 2004 : R2012 - Identical
BS ISO/IEC 15052 : 1997 - Identical
DS EN 301258 : 2006 - Identical
CSA ISO/IEC 15052 : 2004 : R2017 - Identical
CSA ISO/IEC 15052 : 2004 - Identical
