Hello, I recently updated from Asterisk ACID to Asterisk DIAL due to hardware (CPU) problems. The install went well, and I am now able to use the Lenovo CPU that I had trouble with (Sept 7, 2015). I was recently informed that it would be preferable if I were to use CTCSS access on my node instead of carrier access, and I have been attempting to do so, first by activating ctcss via dsp in the usbradio.conf file, then by reprogramming my Mot M120 radio for a channel with carrier access, or the alternate channel with ctcss access and adding a line from pin 8 of the radio accessory connector to pin 7 of the URI. In Radio-Tune-Menu, choice 4 Auto-Detect Rx CTCSS Level Value passes, but if I try performing a DTMF command like *81, I get no reply from the node. Any ideas as to what I should try next? Thanks, Dave N N0KM --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus