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Integrated Services Digital Network (ISDN). Call Hold (HOLD) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
STANDARD published on 1.12.1997
Designation standards: ČSN ETS 300141-2-ed.1
Classification mark: 877032
Catalog number: 50639
Publication date standards: 1.12.1997
SKU: NS-170879
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
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Latest update: 2024-07-17 (Number of items: 2 331 085)
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