fsk_buf 2767 src/ftdm_io.c if (ftdm_fsk_demod_init(&ftdmchan->fsk, ftdmchan->rate, ftdmchan->fsk_buf, sizeof(ftdmchan->fsk_buf)) != FTDM_SUCCESS) { fsk_buf 441 src/include/private/ftdm_core.h uint8_t fsk_buf[80];