Integrated Services Digital Network (ISDN); Signalling System No. 7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 2: ISDN supplementary service [ITU-T Recommendation Q.730 (1999) modified] (Endorsed by AENOR in December of 2004.)
NORM herausgegeben am 1.12.2004
Designation standards: UNE-EN 300356-2V4.2.1
Publication date standards: 1.12.2004
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE