USB call recording

[YOVU Cloud]

Also trying to figure this out.. getting a red X on the top right of the screen when I hit the button. Here is what I've figured out so far:

#This one should turn on the feature.. I read it must be done from a config
features.usb_call_recording.enable=1

#This is to put the button on line button 10.
programablekey.10.type=25
programablekey.10.line=1
programablekey.10.label=Record

Also ready it must be FAT32.. but something is still missing...