Integrated Services Digital Network (ISDN) - Signalling System No.7 - ISDN User Part (ISUP) version 3 for the international interface - Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service [ITU-T Recommendation Q.733, clause 3 (1997), modified]
NORMA vydaná dňa 1.12.1998
Designation standards: ÖNORM EN 300356-18-V3.1.3
Note: NEPLATNÁ
Publication date standards: 1.12.1998
The number of pages: 47
Approximate weight : 141 g (0.31 lbs)
Country: Austrian technische Norm
Kategória: Technické normy ÖNORM