Here are the first 3 lines of my rpt.conf ;rxchannel=Radio/usb46841 ;rxchannel = dahdi/pseudo rxchannel=SimpleUSB/usb And here are the channel modules from modules.conf ; Channels noload => chan_agent.so ; Agent Proxy Channel noload => chan_alsa.so ; ALSA Console Channel Driver noload => chan_beagle.so ; Beagleboard Radio Interface Channel Driver load => chan_dahdi.so ; DAHDI Telephony noload => chan_echolink.so ; echolink Channel Driver noload => chan_features.so ; Feature Proxy Channel noload => chan_gtalk.so ; Gtalk Channel Driver load => chan_iax2.so ; Inter Asterisk eXchange (Ver 2) load => chan_local.so ; Local Proxy Channel (Note: used internal noload => chan_oss.so ; Channel driver for OSS sound cards noload => chan_phone.so ; Generic Linux Telephony Interface driver noload => chan_pi.so ; DMK Engineering "PITA" Board on Rpi2/3 Channel Driver load => chan_simpleusb.so ; CM1xx USB Cards with Radio Interface Channel Driver (No DSP) noload => chan_sip.so ; Session Initiation Protocol (SIP) noload => chan_tlb.so ; TheLinkBox Channel Driver noload => chan_usbradio.so ; CM1xx USB Cards with Radio Interface Channel Driver (DSP) noload => chan_usrp.so ; GNU Radio interface USRP Channel Driver noload => chan_voter.so ; Radio Voter Channel Driver From: Will Bashlor [mailto:will@bashlor.com] Sent: Tuesday, December 12, 2017 3:11 PM To: 'Users of Asterisk app_rpt' <app_rpt-users@lists.allstarlink.org> Subject: Changing from radioless dahdi to simpleusb Hi all, I have an AllStar node on Raspbian Stretch installed via apt-get install. It’s been working fine with dahdi as a radioless node but now I want to test with simpleusb using a CM108 and BF888. I have everything connected and there’s a solid red light on the CM108 and it doesn’t seem to be communicating with allstar. I can see it with lsusb –t fine, see below. Also do I need to disable dahdi in modules? If I do that then I get error “No channel type registered for 'DAHDI'” and asterisk quits. Any quick pointers or advice? Thanks. pi@raspberrypi:~ $ sudo lsusb -t /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=dwc_otg/1p, 480M |__ Port 1: Dev 2, If 0, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 1: Dev 2, If 1, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 1: Dev 2, If 2, Class=Audio, Driver=snd-usb-audio, 12M |__ Port 1: Dev 2, If 3, Class=Human Interface Device, Driver=usbhid, 12M pi@raspberrypi:~ $ -Will KE4IAJ