STN ETS 300057 (870057)

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

STANDARD published on 1.3.1994

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The information about the standard:

Designation standards: STN ETS 300057
Classification mark: 870057
Catalog number: 71364
Publication date standards: 1.3.1994
The number of pages: 23
Approximate weight : 69 g (0.15 lbs)
Country: Slovak technical standard
Category: Technical standards STN