fwrite           3018 src/ftdm_io.c  				rc = fwrite(&ftdmchan->dtmfdbg.buffer[ftdmchan->dtmfdbg.windex], 1, towrite, ftdmchan->dtmfdbg.file);
fwrite           3025 src/ftdm_io.c  				rc = fwrite(&ftdmchan->dtmfdbg.buffer[0], 1, towrite, ftdmchan->dtmfdbg.file);
fwrite           3136 src/ftdm_io.c  			rc = fwrite(data, 1, dlen, ftdmchan->dtmfdbg.file);