ČSN ETS 300712-ed.1 (873591)

Integrated Services Digital Network (ISDN) - Public Switched Telephone Network (PSTN) - Premium Rate (PRM) service - Service description

NORM herausgegeben am 1.1.1998

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

Designation standards: ČSN ETS 300712-ed.1
Classification mark: 873591
Catalog number: 51136
Publication date standards: 1.1.1998
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Kategorie: Technische Normen ČSN