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Integrated Services Digital Network (ISDN) - Closed User Group (CUG) supplementary service - Digital Subscriber Signalling System No.one (DSS1) protocol - Part 1: Protocol specification
STANDARD published on 1.7.1999
Designation standards: ČSN EN 300138-1-V1.3.4
Classification mark: 877030
Catalog number: 55920
Publication date standards: 1.7.1999
SKU: NS-150953
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
Data communication networksIntegrated Services Digital Network (ISDN)
1.8.1999
1.8.1999
1.8.1999
1.8.1999
1.8.1999
1.8.1999
Latest update: 2025-04-08 (Number of items: 2 194 416)
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