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Integrated Services Digital Network (ISDN) - Message Waiting Indication (MWI) supplementary service - Service description
STANDARD published on 1.7.1999
Designation standards: ČSN ETS 300650-ed.1
Classification mark: 873605
Catalog number: 55935
Publication date standards: 1.7.1999
SKU: NS-172050
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
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