Integrated Services Digital Network (ISDN) - Explicit Call Transfer (ECT) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification
NORMA vydána dne 1.1.1999
Designation standards: ÖNORM EN 300369-1-V1.2.4
Publication date standards: 1.1.1999
The number of pages: 48
Approximate weight : 144 g (0.32 lbs)
Country: Austrian technische Norm
Kategorie: Technické normy ÖNORM