Normally our phones will subscribe to the voicemail service to light its 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 to be sent, and will automatically inform the device if a new message is available.

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

Auto provisioning
ParameterMin. ValueMax. ValueDescription.

0 = inactive - Subscribe for MWI is not sent to server, MWI displayed correctly
1 = active (default) - Subscribe for MWI is sent to server, MWI displayed correctly

Example: <param name="Calls.Missed.Subscribe.Active" value="0" />

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