Integrated Services Digital Network (ISDN) - Signalling System No.7 - ISDN User Part (ISUP) version 2 for the international interface - Part 19: Three-Party (3PTY) supplementary service
NORM herausgegeben am 1.6.1996
Designation standards: ÖNORM ETS 300356-19
Note: UNGÜLTIG
Publication date standards: 1.6.1996
The number of pages: 13
Approximate weight : 39 g (0.09 lbs)
Country: Austrian technische Norm
Kategorie: Technische Normen ÖNORM