First, I am not sure where to ask this. Please point me the correct stack exchange if it does not belong here.
Note: I do not know how to correctly name "mobile data" in english. But I refer to 3G/4G/etc.
To send or receive a MMS (Multimedia Messaging Service), I need to activate mobile data on my phone, even if I am connected to a network via Wifi.
Why is it required ? Why can't we use MMS via Wifi ? Depending on the type of subscription you have, it would be less expensive to use Wifi than mobile data, at least for the customer.