With just $800 in basic equipment, researchers found a stunning variety of data—including thousands of T-Mobile users’ calls ...
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How to enable and use Wi-Fi calling on your Android or iPhone to make calls without cellular service
You can use Wi-Fi calling on your Android or iPhone to make calls using Wi-Fi rather than your cellular network.
You can make a call private by hiding your phone number in a few different ways, including using your phone's settings.
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