Yealink has now released 28.81.x.x firmware on the T46G and it is shipping on new phones. Currently 3CX supports 220.127.116.11. The new firmware does not work with 3CX. None of the context buttons, work properly, so they must be downgraded. The issue is that 3CX does not support downgrading phones through the console. The only way is either manually downgrading the phones individually, or creating a custom template, copying files, yada yada. This is very time consuming and not really practical. We need a method to get the phones to downgrade through the console, or for 3CX to release an upgraded firmware compatibility with Yealink phones. We, like many companies love and sell lots of Yealink phones with 3CX, so we would really like a better method of getting them going than we do currently.