Integrated Services Digital Network (ISDN) - Generic keypad protocol for the support of supplementary services - Digital Subscriber Signalling System No. one .........(abbreviated)
STANDARD published on 1.4.1993
Designation standards: ÖNORM ETS 300122
Note: WITHDRAWN
Publication date standards: 1.4.1993
The number of pages: 13
Approximate weight : 39 g (0.09 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM