Question wifi calling what's the point of using this

[y2jman]

i never used it s20 plus i know its exist on s25 plus but i really don't understand it always dismissed when i got notify to used it sometimes what is this supposed to do anyways?

 

[dangerousfen]

i never used it s20 plus i know its exist on s25 plus but i really don't understand it always dismissed when i got notify to used it sometimes what is this supposed to do anyways?

I couldn't live without it.
I live in a rural area and have no cell service at my location.
With WiFi calling all calls and texts are routed through my router as VoIP calls.
As soon as I leave my location and pick up a tower, the call service automatically reverts to normal. Conversely, when I return home and the cell service drops, the phone automatically reconnects to WiFi calling.
It works well and is very reliable.