Information technology. Telecommunications and information exchange between systems. Private integrated services network. Inter-exchange signalling protocol. Recall supplementary service.
NORM herausgegeben am 15.12.1997
Designation standards: BS ISO/IEC 15052:1997
Note: UNGÜLTIG
Publication date standards: 15.12.1997
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: British technical standard
Kategorie: Technische Normen BS