We use Yealink T46S phones, all with three EXP40 modules. These modules have been provisioned by the EPM but only the first EXP40 show green or red LEDs when phones are free or busy. The second and thirth EXP40 do show names in the LCD and can even be used to call the collegues, but don’t show the state of the collegues. The LEDs stay off.
I looked at the hints (core show hints) and they are being watched by the EXP40 modules.