How do I activate/deactivate call forwarding to another number?

How can I activate a call forwarding?

Redirect either via the settings of your phone or by entering one of the following codes. Replace the number +32456191933 with the number you want to forward calls to when you enter these codes in your own phone.

Redirect if... Which code?
I don't take the call (*)*61*+32456191933# + call
There's no network or my device is switched off  (*)*62*+32456191933# + call
I'm in a call (*)*67*+32456191933# + call
Always (*)*21*+32456191933# + call
(*) means that you have to enter two asterisks for some devices.

How can I deactivate a call forwarding?

To cancel the redirect, form and call these codes: ##61#, ##62#, and ##67#. Please note that this will also deactivate your voicemail, and you'll have to reactivate it.

Good to know:

A diverted call from one Belgian Mobile Vikings number to another will be charged at the normal rate. If you redirect a call to a foreign number, the international rates apply. You can check them on our roaming page - choose 'Belgium' in the 'from' field. 

Did you choose the Only Data price plan? In that case, you'll be able to receive calls but not start them. Of course, you can send messages through WhatsApp, Messenger, ... using mobile data. You can't forward calls, either.