ČSN ETS 300057 (877008)

Integrated Services Digital Network (ISDN). Call Waiting (CW) supplementary service. Functional capabilities and information flows

NORM herausgegeben am 1.6.1995

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

Designation standards: ČSN ETS 300057
Classification mark: 877008
Catalog number: 17781
Publication date standards: 1.6.1995
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Kategorie: Technische Normen ČSN