iOS 18 Beta 4 adds a new "Wireless LAN Call" function, which is simply a voice communication service through a wireless network. It is said that this function is only available in the options of telecommunications cards, but this service is not available yet and has to wait for the operator to open it.
The "Wireless LAN Calling" path is as follows: "Settings" → "Cellular Network" → Select a number (under "SIM Card") → "Wireless LAN Calling" → Turn on "On iPhone "Call over Wi-Fi" → Enter or confirm the address used by emergency services.
The above is the detailed content of How to use iPhone wireless LAN call switch. For more information, please follow other related articles on the PHP Chinese website!