European digital cellular telecommunications system (Phase 2);Call Waiting (CW) and Call Hold (HOLD) supplementary services;Stage 1 (GSM 02.83) (Endorsed by Asociación Espanola de Normalización in September of 2022.)
NORMA vydaná dňa 1.9.2022
Designation standards: UNE-ETS 300516ED1
Publication date standards: 1.9.2022
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE