Ok this is some thing i have been wanting to do such as configuring the URI i have to discriminate the pl tones for me however I am having a very hard time to get it to cooperate correctly.. I was finally able to get my repeater backup however its letting users with no tone transmit.... Confused greatly now I am Using a URI from DMK Engneering and I do have the Duplex cable for Motorola I am using CM200 radios and the radio channel is set to open squelch at moment for testing.. here is a copy of my current config that works in usbradio.conf ; ; Usbradio channel driver Configuration File ; [general] [usb29925] hdwtype=0 rxboost=1 ;txboost=1 rxctcssrelax=1 txctcssdefault=141.3 rxctcssfreqs=141.3 txctcssfreqs=141.3 ;rxctcssoverride=0 carrierfrom=usbinvert ctcssfrom=no rxdemod=speaker txprelim=yes txlimonly=yes txtoctype=notone txmixa=composite txmixb=no invertptt=0 duplex=1 rxondelay=0 rxnoisefiltype=0 eeprom=0 #includeifexists custom/usbradio.conf This is my current Asterisk folder info I notice that there is no simpleusb.conf do i need this? to get it to work correctly? [root@KC9ZHV-_R asterisk]# ls amd.conf echolink.conf gps.conf manager.conf rpt.conf usbradio.conf asterisk.conf echolink.old.conf iax.conf modules.conf savenode.conf usbradio.old audio extensions.conf indications.conf msg sip.conf usbradio_tune_usb29925.conf dundi.conf features.conf logger.conf myscripts system.conf zapata.conf Thanks so much Loren Tedford (KC9ZHV) Email: lorentedford@gmail.com Phone: 618-553-0806 http://www.lorentedford.com http://www.kc9zhv.com http://hub.kc9zhv.com