FTDM_CHANNEL_3WAY 2342 src/ftdm_io.c  	ftdm_clear_flag(ftdmchan, FTDM_CHANNEL_3WAY);
FTDM_CHANNEL_3WAY  250 src/include/private/ftdm_types.h 	FTDM_CHANNEL_3WAY = (1 << 20),