ČSN ETS 300137 (877029)

Integrated Services Digital Network (ISDN). Closed User Group (CUG) supplementary service. Functional capabilities and information flows

NORM herausgegeben am 1.11.1994

Nur das Vorwort ist in der tschechischen Sprache -
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The information about the standard:

Designation standards: ČSN ETS 300137
Classification mark: 877029
Catalog number: 16762
Publication date standards: 1.11.1994
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Kategorie: Technische Normen ČSN