How does a Wi-Fi call differ from a Skype or WhatsApp call?

With the Appels WiFi option, you don’t make your calls through an app like WhatsApp or Skype. So you don’t need to install an app to take advantage of the service.

You use your smartphone’s or SIM card’s phone book, as you would to make a traditional call. Your correspondent sees your number or your contact name if you do not hide your number.

The same applies when you receive a call. Your correspondent calls you on your number and if you are connected to a Wi-Fi network, the call will pass through Wi-Fi in priority, otherwise through the 4G/3G/2G network. (only in Luxembourg).

If you switch between a Wi-Fi network and POST’s mobile network (and vice versa), you’ll be able to keep talking without being cut off.