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.
STANDARD published on 15.3.1999
Designation standards: BS ISO/IEC 15991:1998
Note: WITHDRAWN
Publication date standards: 15.3.1999
The number of pages: 50
Approximate weight : 150 g (0.33 lbs)
Country: British technical standard
Category: Technical standards BS