Integrated Services Digital Network (ISDN) - Signalling System No.7 - ISDN User Part (ISUP) version 3 for the international interface - Part 9: Closed User Group (CUG) supplementary service [ITU-T Recommendation Q.735, clause 1 (1993), modified]
STANDARD published on 1.12.1998
Designation standards: ÖNORM EN 300356-9-V3.1.3
Note: WITHDRAWN
Publication date standards: 1.12.1998
The number of pages: 36
Approximate weight : 108 g (0.24 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM