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.
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Yes, Your Android Phone Can Still Send Messages Without A Cell Signal: Here's How

Messaging is still one of the best ways to communicate with your friends and family. To send an SMS, all you need is a SIM card with an active messaging plan installed on your smartphone. But what if ...