Integrated Services Digital Network (ISDN) - Completion of Calls on No Reply (CCNR) supplementary service - Service description
STANDARD published on 1.10.1999
Designation standards: ČSN EN 301134-V1.1.1
Classification mark: 873615
Catalog number: 56810
Publication date standards: 1.10.1999
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN