Integrated Services Digital Network (ISDN). Three-Party (3PTY) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 1: Protocol specification
NORM herausgegeben am 1.4.2002
Designation standards: STN EN 300188-1-V1.2.4
Classification mark: 870188
Catalog number: 19946
Publication date standards: 1.4.2002
The number of pages: 37
Approximate weight : 111 g (0.24 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN