Integrated Services Digital Network (ISDN). Call Hold (HOLD) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 3: Test Suite Structure and Test Purposes (TSS&TP) specification for the user
NORM herausgegeben am 1.7.2002
Designation standards: STN EN 300141-3-V1.2.4
Classification mark: 870141
Catalog number: 87855
Publication date standards: 1.7.2002
The number of pages: 19
Approximate weight : 57 g (0.13 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN