Disabling BLF LED when state is idle

[PaulC]

In the sample config files we have:

Code:

#Enable or disable the phone to turn off the indicator LEDs of BLF and Call Park keys when the monitored states is idle.
#0-Disabled (default), 1-Enabled;
features.blf_and_callpark_idle_led_enable = 1

I've set this to 0 and 1 but in both cases the LED remains solid green when the monitored extension is idle. (It's also a bit confusing because you're "enabling" the "disabling" of the LED, but the parameter is called "..led_enable")

Am I missing something else in configuration? Or is the name of the parameter correct as shown above?

Thanks
Paul