TCH/F decoder gsm_tch_f_decoder import grgsm grgsm.tch_f_decoder($mode, $boundary_check) TCH coding mode mode enum GSM-FR grgsm.TCH_FS GSM-EFR grgsm.TCH_EFR GSM-AMR 12.2 grgsm.TCH_AFS12_2 GSM-AMR 10.2 grgsm.TCH_AFS10_2 GSM-AMR 7.95 grgsm.TCH_AFS7_95 GSM-AMR 7.4 grgsm.TCH_AFS7_4 GSM-AMR 6.7 grgsm.TCH_AFS6_7 GSM-AMR 5.9 grgsm.TCH_AFS5_9 GSM-AMR 5.15 grgsm.TCH_AFS5_15 GSM-AMR 4.75 grgsm.TCH_AFS4_75 Voice boundary detection boundary_check False bool False False True True bursts message msgs message 1 voice message 1 If "Voice boundary detection" is enabled, then only bursts are decoded as voice where - the framenumber is greater then the framenumber of a received "Connect" or "Connect Acknowlegde" message, and - the framenumber is less then the framenumber of a "Release" message