what does the wifi calling button on my phone do, and why does it need to be on for me to make any calls?
In: 7
It has a few uses:
Instead of transmitting calls/text back to cellular towers very far away, your phone can use your home Wi-Fi network which is much closer (less battery used). Most peoples phones are *already* connected to Wi-Fi when at home for internet anyway.
If you have poor cellular coverage at home, it can help you still get calls/text reliably. You shouldn’t *need* to have to have it switched on unless you don’t get cellular coverage.
It can also help ease congestion of 3G/4G networks in densely populated areas as it offloads calls to wired networks.
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