Private Integrated Services Network (PISN) - Inter-exchange signalling protocol - Call priority interruption and call priority interruption protection supplementary services [ISO/IEC 15992 (1998), modified]
NORMA vydána dne 1.11.1999
Designation standards: ÖNORM EN 301656-V1.1.1
Note: NEPLATNÁ
Publication date standards: 1.11.1999
The number of pages: 48
Approximate weight : 144 g (0.32 lbs)
Country: Austrian technische Norm
Kategorie: Technické normy ÖNORM