FTDM_CHANNEL_USE_RX_GAIN 3178 src/ftdm_io.c  				ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_USE_RX_GAIN);
FTDM_CHANNEL_USE_RX_GAIN 3180 src/ftdm_io.c  				ftdm_set_flag(ftdmchan, FTDM_CHANNEL_USE_RX_GAIN);
FTDM_CHANNEL_USE_RX_GAIN 3718 src/ftdm_io.c  	if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_USE_RX_GAIN)