Integrated Services Digital Network (ISDN); Advice of Charge: charging information at call set-up time (AOC-S) supplementary service; Service description
STANDARD published on 31.10.1992
Designation standards: ETSI ETS 300178-ed.1
Publication date standards: 31.10.1992
The number of pages: 19
Approximate weight : 57 g (0.13 lbs)
Country: European technical standard
Category: Technical standards ETSI