Thanks to the new VoLTE (Voice over LTE) technology you can make calls via 4G within Belgium. Up to now, you could only make calls over the 2G or 3G network.
When you make calls via 4G, you don't use any data, only call minutes.
To use VoLTE, you need a compatible phone equipped with the latest software:
VoLTE is activated by default on your phone. To switch off VoLTE, go to Settings > Mobile networks and switch off the “VoLTE call” button. You can activate VoLTE again later in the same way.
Do you wish to use a VPN application? In some cases, you need to temporarily switch off VoLTE.