Integrated Services Digital Network (ISDN). Call Hold (HOLD) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol. Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
NORM herausgegeben am 1.7.2002
Designation standards: STN EN 300141-2-V1.2.4
Classification mark: 870141
Catalog number: 87854
Publication date standards: 1.7.2002
The number of pages: 23
Approximate weight : 69 g (0.15 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN