ETSI ETS 300057-ed.1

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

NORMA vydaná dňa 19.5.1992

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The information about the standard:

Designation standards: ETSI ETS 300057-ed.1
Publication date standards: 19.5.1992
The number of pages: 23
Approximate weight : 69 g (0.15 lbs)
Country: European technical standard
Kategória: Technické normy ETSI