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Integrated Services Digital Network (ISDN). Three-Party (3PTY) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 1: Protocol specification
STANDARD published on 1.4.2002
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Designation standards: STN EN 300188-1-V1.2.4
Classification mark: 870188
Catalog number: 19946
Publication date standards: 1.4.2002
SKU: NS-518921
The number of pages: 37
Approximate weight : 111 g (0.24 lbs)
Country: Slovak technical standard
Category: Technical standards STN
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Latest update: 2025-07-04 (Number of items: 2 207 347)
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