Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 9: Closed User Group (CUG) supplementary service [ITU-T Recommendation Q.735, clause 1 (1993) modified]
NORMA vydaná dňa 18.7.2001
Designation standards: ETSI EN 300356-9-V4.1.2
Publication date standards: 18.7.2001
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: European technical standard
Kategória: Technické normy ETSI