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Integrated Services Digital Network (ISDN) - Definition and usage of cause and location in Digital Subscriber Signalling System No.one (DSS1) and Signalling System No.7 ISDN User Part (ISUP) /ITU-T Recommendation Q.850(1993), modified/
STANDARD published on 1.3.1997
Designation standards: ČSN ETS 300485-ed.1
Classification mark: 877091
Catalog number: 21499
Publication date standards: 1.3.1997
SKU: NS-171591
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
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