Introduction.

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

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

Provisioning parameter