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Apple iPhone SE (2020)
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Activate or deactivate WiFi Calling
When WiFi Calling is activated, you can make and receive voice calls over WLAN when you're in an area with poor or no network coverage. To activate WiFi Calling, you need to connect to a WLAN and activate use of 4G for voice calls and activate mobile data.
1. Find "Wi-Fi Calling"
Press Settings.
Press Mobile Data.
Press Wi-Fi Calling.
2. Activate or deactivate automatic use of mobile data
Press the indicator next to "Wi-Fi Calling on This iPhone" to activate or deactivate the function.
If you activate the function, press Enable.
3. Return to the Home screen
Press the Home key to end the session and return to the Home screen.