Integrated Services Digital Network (ISDN);Advice of Charge: charging information at call set-up time (AOC-S) supplementary service;Service description (Endorsed by Asociación Espanola de Normalización in April of 2022.)
NORMA vydána dne 1.4.2022
Designation standards: UNE-ETS 300178ED1
Publication date standards: 1.4.2022
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE