Integrated Services Digital Network (ISDN). Message Waiting Indication (MWI) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 1: Protocol specification
NORM herausgegeben am 1.7.2002
Designation standards: STN ETS 300745-1
Classification mark: 870745
Catalog number: 20547
Publication date standards: 1.7.2002
Approximate weight : 300 g (0.66 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN