Integrated Services Digital Network (ISDN) - Generic keypad protocol for the support of supplementary services - Digital Subscriber Signalling System No. one .........(abbreviated)
NORMA vydána dne 1.4.1993
Designation standards: ÖNORM ETS 300122
Note: NEPLATNÁ
Publication date standards: 1.4.1993
The number of pages: 13
Approximate weight : 39 g (0.09 lbs)
Country: Austrian technische Norm
Kategorie: Technické normy ÖNORM