European digital cellular telecommunications system (Phase 2);Line identification supplementary services;Stage 1 (GSM 02.81) (Endorsed by Asociación Espanola de Normalización in September of 2022.)
NORMA vydána dne 1.9.2022
Designation standards: UNE-ETS 300514ED1
Publication date standards: 1.9.2022
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE