The Belfabriek app provides you with a complete management environment for your destinations. After logging into the app, you will see an overview of your numbers and any extensions. 

For each number or extension, you can change the destination. 

You can select a number from the built-in address book or simply enter a phone number. You will receive a confirmation once the change has been made.

Note: The Belfabriek app address book is not linked to the address book on your mobile phone.

Also Read

How Does the Address Book in the Belfabriek App Work?

How Do I Add a New Destination to the Address Book?

How Do I Change a Destination?