Are you loading the chan_usbradio module (as opposed to chan_simpleusb)? Edit modules.conf, make sure you have "load => chan_usbradio.so" and "noload => chan_simpleusb.so". Restart asterisk after making the change. --- Jeff WN3A --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus