Alvin Starr via Talk wrote on 2025-12-10 13:48:
Here is my stupid question for the day.
Wifi calling.
Is this just VOIP with some wired in setup to the carrier?
James covered it well. It's VoLTE but with WiFi instead of LTE. Valid SIM card required for authentication by the phone to the network. Hand-off between home WiFi and carrier's towers when in motion is seamless. An excellent choice for travelling, as long as one has WiFi access, one can make and receive calls from anywhere with their normal phone number. Also an excellent choice for at home, as most people probably have better WiFi signal strength than cellular signal strength. Rather, it's something we can control ourselves. Much superior to femto-cells, as pretty much everyone has the hardware already. I can't imagine not enabling it.