UNE-ETS 300729 Ed1:2023 Digital cellular telecommunications system;Discontinuous Transmission (DTX) for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.81) (Endorsed by Asociación Española de Normalización in January of 2023.)
2023UNE-ETS 300729 Ed2:2023 Digital cellular telecommunications system;Discontinuous Transmission (DTX) for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.81 version 5.2.1 Release 1996) (Endorsed by Asociación Española de Normalización in January of 2023.)
2023UNE-ETS 300729 Ed1:2023 Digital cellular telecommunications system;Discontinuous Transmission (DTX) for Enhanced Full Rate (EFR) speech traffic channels (GSM 06.81) (Endorsed by Asociación Española de Normalización in January of 2023.)