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Integrated Services Digital Network (ISDN). Call Hold (HOLD) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user
STANDARD published on 1.7.2002
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Designation standards: STN EN 300141-4-V1.2.4
Classification mark: 870141
Catalog number: 87858
Publication date standards: 1.7.2002
SKU: NS-518775
The number of pages: 253
Approximate weight : 790 g (1.74 lbs)
Country: Slovak technical standard
Category: Technical standards STN
1.7.2000
1.7.2002
1.4.2001
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