Integrated Services Digital Network (ISDN) - Signalling System No.7 (SS7) - ISDN User Part (ISUP) version 4 for the international interface - Part 18: Completion of Calls to Busy Subscriber (CCBS) supplementary service [ITU-T Recommendation Q.733, clause 3 (1997), modified]
NORM herausgegeben am 1.11.2001
Designation standards: ÖNORM EN 300356-18-V4.1.2
Publication date standards: 1.11.2001
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: Austrian technische Norm
Kategorie: Technische Normen ÖNORM