ČSN ETS 300210-1 (877093)

Integrated Services Digital Network (ISDN). Freephone (FPH) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 1: Protocol specification

NORM herausgegeben am 1.1.1997

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

Designation standards: ČSN ETS 300210-1
Classification mark: 877093
Catalog number: 21234
Publication date standards: 1.1.1997
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Kategorie: Technische Normen ČSN