Hello,
I Use the Yealink WH66 (Firmware125.434.0.20) with 3CX Desktop APP (18.12.425) .
My Headset is at my office plugged by USB to my Thunderbolt Dock. Everyday, when I arrive at my office, I plug my dock to my macbook pro and the headset works well with macos. But, I have to restart my 3CX...