Integrated Services Digital Network (ISDN). Direct Dialling In (DDI) supplementary service. Functional capabilities and information flows
NORM herausgegeben am 1.3.1994
Designation standards: STN ETS 300063
Classification mark: 870063
Catalog number: 71368
Publication date standards: 1.3.1994
The number of pages: 15
Approximate weight : 45 g (0.10 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN