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It's not really just WIFI calling. A data network and a WiFi network are all the same to a UDP packet and your phone can have settings to prefer one or the othe
by fatfingerd 3y ago
It's not really just WIFI calling. A data network and a WiFi network are all the same to a UDP packet and your phone can have settings to prefer one or the other so that you can use the data plan you want as if the WIFI were setup.
- hx833001 3y agoYeah, an iPhone will use a secondary esim data connection to route “wifi” calls while abroad.