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
NORM herausgegeben am 1.7.2002
Designation standards: STN EN 300141-4-V1.2.4
Classification mark: 870141
Catalog number: 87858
Publication date standards: 1.7.2002
The number of pages: 253
Approximate weight : 790 g (1.74 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN