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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 1.8.1999
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Designation standards: STN ETS 300138-1:1995/A1
Classification mark: 870138
Catalog number: 14050
Note: Change
Publication date standards: 1.8.1999
SKU: NS-540662
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Slovak technical standard
Category: Technical standards STN
Táto zmena modifikuje ETS 300 138-1:1992.
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 1.12.1995
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