Integrated Services Digital Network (ISDN) - Direct Dialling In (DDI) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1: Protocol specification
NORMA vydána dne 1.9.1998
Designation standards: ÖNORM EN 300064-1-V1.3.4
Publication date standards: 1.9.1998
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: Austrian technische Norm
Kategorie: Technické normy ÖNORM