Integrated Services Digital Network (ISDN); Signalling System No.7 (SS7); ISDN User Part (ISUP) version 4 for the international interface; Part 19: Three-Party (3PTY) supplementary service [ITU-T Recommendation Q.734, clause 2 (1996) and implementors guide (1998) modified]
NORM herausgegeben am 18.7.2001
Designation standards: ETSI EN 300356-19-V4.2.1
Publication date standards: 18.7.2001
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: European technical standard
Kategorie: Technische Normen ETSI