Integrated Services Digital Network (ISDN);Completion of Calls to Busy Subscriber (CCBS) supplementary service;Functional capabilities and information flows (Endorsed by Asociación Espanola de Normalización in July of 2022.)
NORMA vydána dne 1.7.2022
Designation standards: UNE-ETS 300358ED1
Publication date standards: 1.7.2022
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE