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
STANDARD published on 1.7.2002
Designation standards: STN EN 300356-20-V3.2.8
Classification mark: 870356
Catalog number: 20211
Publication date standards: 1.7.2002
The number of pages: 51
Approximate weight : 153 g (0.34 lbs)
Country: Slovak technical standard
Category: Technical standards STN