Introduction.

Normally our phones will subscribe to the voicemail service to light it's red Message Waiting Indicator when a new message is available and turn off when all messages have been read.

Some platforms do not want that the subscribe is send and will automatic inform the device if a new message is available.

From software 2.15.9 we have implement the option to switch off the Message Waiting Subscription via provisioning.

Provisioning parameter

Parameter	Min. Value	Max. Value	Description.
Calls.Missed.Subscribe.Active	0	1	0 = inactive - Subscribe for MWI is not send to server, MWI displayed correctly 1 = active (default) - Subscribe for MWI is send to server, MWI displayed correctly
Example: <param name="Calls.Missed.Subscribe.Active" value="0" />