24-06-2021 08:50 PM in
if you have internet connection, then the quality of the call is higher, therefore having mobile data on = gives you an advantage, WiFi calling works similar way;
in simple terms, you are using something like Skype , but with a better quality and usually just the audio
25-06-2021 05:39 AM in
Calling Over Wi-Fi is driven by your mobile network.
If your phone loses all network connection then if you have Wi-Fi connection it would switch to Calling Over Wi-Fi if you have the option turned On with your network and within your phone.
Some networks also allow text messaging this way too.
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "