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]
STANDARD published on 1.11.2001
Designation standards: ÖNORM EN 300356-19-V4.2.1
Publication date standards: 1.11.2001
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM