I much prefer SimpleUSB myself, although my nodes all use COR/COS lines and muted filtered audio... Much less PC horsepower required, especially if you're not using the DSP for PL/COR.. I looked in /etc/init.d and didn't have either of these files: 3. delete /etc/init.d/usbradio 4. touch /etc/init.d/simpleusb Just for fun, I created the simpleusb file and restarted Asterisk. I didn't notice any changes.. What do these files in /etc/init.d do? Also, when switching to SimpleUSB, make sure to do simpleusb-tune-menu and check your audio settings. When you (W)rite the parameters, different data files are saved to /etc/asterisk: simpleusb_tune_usb2211.conf rather than usbradio_tune_usb2211.conf 73 Kyle K0KN --- Original Message --- Simpleusb needs a COR and optionally a PL line from your radio. Here are the steps to switch. Of course you may want to rename rather than delete at steps 2 and 3. 1. copy /usr/src/astsrc/configs/simpleusb/simpleusb.conf to /etc/asterisk/ 2. delete /etc/asterisk/usbradio* 3. delete /etc/init.d/usbradio 4. touch /etc/init.d/simpleusb 5. edit /etc/asterisk/rpt.conf rxchannel=SimpleUSB/usb 6. reboot -- Tim :wq