Integrated Services Digital Network (ISDN). Call Forwarding No Reply (CFNR) supplementary service. Service description
NORM herausgegeben am 1.12.1995
Designation standards: STN ETS 300201
Classification mark: 870201
Catalog number: 71297
Publication date standards: 1.12.1995
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN