UNE-ETS 300581-1 Ed1:2022 European digital cellular telecommunications system;Half rate speech;Part 1: Half rate speech processing functions (GSM 06.02) (Endorsed by Asociación Española de Normalización in November of 2022.)
2022UNE-ETS 300581-1 Ed1:2022 European digital cellular telecommunications system;Half rate speech;Part 1: Half rate speech processing functions (GSM 06.02) (Endorsed by Asociación Española de Normalización in November of 2022.)