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Integrated Services Digital Network (ISDN). Three Party (3PTY) supplementary service. Service description
STANDARD published on 1.11.1994
Designation standards: ČSN ETS 300186
Classification mark: 873535
Catalog number: 16935
Publication date standards: 1.11.1994
SKU: NS-170970
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
1.6.1999
1.10.1999
1.6.1999
1.6.1999
1.1.2000
1.8.1998
Latest update: 2025-10-01 (Number of items: 2 235 923)
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