Integrated Services Digital Network (ISDN). Call Hold (HOLD) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network
NORM herausgegeben am 1.7.2002
Designation standards: STN EN 300141-5-V1.2.4
Classification mark: 870141
Catalog number: 87880
Publication date standards: 1.7.2002
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN