Terrestrial Trunked Radio (TETRA);Voice plus Data (V+D);Part 11: Supplementary services stage 2;Sub-part 24: Call Retention (CRT) (Endorsed by Asociación Espanola de Normalización in July of 2022.)
NORMA vydaná dňa 1.7.2022
Designation standards: UNE-ETS 300392-11-24ED1
Publication date standards: 1.7.2022
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE