UNE-ETS 300941 Ed1:2023 Digital cellular telecommunications system;Mobile radio interface layer 3;Supplementary services specification;General aspects (GSM 04.10 version 5.0.1) (Endorsed by Asociación Española de Normalización in March of 2023.)
2023UNE-ETS 300941 Ed1:2023 Digital cellular telecommunications system;Mobile radio interface layer 3;Supplementary services specification;General aspects (GSM 04.10 version 5.0.1) (Endorsed by Asociación Española de Normalización in March of 2023.)