Integrated Services Digital Network (ISDN) - Signalling System No.7 - ISDN User Part (ISUP) version 3 for the international interface - Part 16: Call Hold (HOLD) supplementary service [ITU-T Recommendation Q.733, clause 2 (1993), modified]
STANDARD published on 1.12.1998
Designation standards: ÖNORM EN 300356-16-V3.1.3
Note: WITHDRAWN
Publication date standards: 1.12.1998
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM