ISO/IEC 15050:1997被替代
Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Advice of charge supplementary services
出版：International Organization for Standardization
专家解读视频
DR 98452 CP - Identical
KS X ISO/IEC 15050:2007 - Identical
KS X ISO/IEC 15050:2013 - Identical
AS/NZS 15050:1999 - Identical
BS ISO/IEC 15050:1997 - Identical
AS/NZS 15050:1999 - Identical
