ČSN ETS 300185-1 (877037)

Integrated Services Digital Network (ISDN). Conference call, add-on (CONF) supplementary service. Digital Subscriber Signalling System No. one (DSS1). Part 1: Protocol specification

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 300185-1
Classification mark: 877037
Catalog number: 17856
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