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 supplementary services.
NORMA vydána dne 15.3.1999
Designation standards: BS ISO/IEC 15991:1998
Note: NEPLATNÁ
Publication date standards: 15.3.1999
The number of pages: 50
Approximate weight : 150 g (0.33 lbs)
Country: British technical standard
Kategorie: Technické normy BS