Digital cellular telecommunications system (Phase 2) (GSM); Mobile radio interface layer 3; Supplementary services specification; Formats and coding (GSM 04.80)
Digital cellular telecommunications system (Phase 2+) (GSM); Mobile Station - Base Station System (MS - BSS) interface; General aspects and principles (GSM 04.01 version 8.0.0 Release 1999)
Transmitting equipment for the Amplitude Modulated (AM) sound broadcasting service; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU