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Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; functional capabilities and information flows.
STANDARD published on 1.12.1992
Designation standards: DIN ETS 300140:1992-12
Publication date standards: 1.12.1992
SKU: NS-248173
The number of pages: 30
Approximate weight : 90 g (0.20 lbs)
Country: German technical standard
Category: Technical standards DIN
ISDN; Dienstmerkmal Halten; Funktionelle Fähigkeiten und Informationsflüsse.
1.2.2000
1.2.2000
1.8.1998
1.8.1998
1.9.1992
1.9.1992
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Latest update: 2025-06-02 (Number of items: 2 203 752)
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