What type of headset will work with the DuraFon-UHF handset? EnGenius Admin Updated April 05, 2018 01:32 Follow The connector on the handset is M1 (2.5mm). Related articles Durafon UHF FAQ Which EnGenius phone systems does the DuraFon-UHF handset work with? Can you program each line on UHF/PRO/SIP handset to a specific extension? DuraFon Best Practices How do I disable the CTCSS/DCS tone on the Durafon-UHF? Comments 0 comments Please sign in to leave a comment.