Integrated Services Digital Network (ISDN) - Signalling System No.7 - ISDN User Part (ISUP) version 3 for the international interface - Part 20: Completion of Calls on No Reply (CCNR) supplementary service
NORMA vydaná dňa 1.1.1999
Designation standards: ÖNORM EN 300356-20-V3.2.8
Note: NEPLATNÁ
Publication date standards: 1.1.1999
The number of pages: 52
Approximate weight : 156 g (0.34 lbs)
Country: Austrian technische Norm
Kategória: Technické normy ÖNORM