How do I disable the CTCSS/DCS tone on the Durafon-UHF? EnGenius Admin Updated August 16, 2020 17:51 Follow Press Mode button three times. Use the up and down button to change the code. (Set “code” to “0”) Related articles I would like to replace a DuraFon PRO handset, but there is no “clear HS” option. What type of headset will work with the DuraFon-UHF handset? Can you program each line on UHF/PRO/SIP handset to a specific extension? How can I find the DHCP server on EAP300v2 (Access Point Mode) ? How far does the telephone mode and UHF radio mode go? Comments 0 comments Please sign in to leave a comment.