fio_channel_set_sig_status_t 708 src/include/freetdm.h typedef ftdm_status_t (*fio_channel_set_sig_status_t) FIO_CHANNEL_SET_SIG_STATUS_ARGS; fio_channel_set_sig_status_t 494 src/include/private/ftdm_core.h fio_channel_set_sig_status_t set_channel_sig_status;