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Integrated Services Digital Network (ISDN). Conference call, add-on (CONF) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification
STANDARD published on 1.7.1999
Designation standards: ČSN EN 300185-1-V1.2.4
Classification mark: 877037
Catalog number: 55986
Publication date standards: 1.7.1999
SKU: NS-150984
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
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Latest update: 2024-09-25 (Number of items: 2 350 354)
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