Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 3 for the international interface; Part 1: Basic services [ITU-T Recommendations Q.761 to Q.764 (1997), modified] (Endorsed by AENOR in July of 2005.)
NORM herausgegeben am 1.7.2005
Designation standards: UNE-EN 300356-1V3.2.2
Publication date standards: 1.7.2005
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE