To setup wifi calling using Google Hangouts Dialer for free and without SIM card, check out our guide on how to setup making calls and receiving calls.

Wi-Fi can easily serve as a backup for your cellular network for calling and texting, especially if you find yourself without signal.

Once you set up Verizon WiFi calling on iPhone you can make calls over WiFi, like when you are in a building with poor signal strength, which allows you to stay connected.

Even when you can't get a cell phone signal, you can still call and text on your iPhone with WiFi calling. Here's how to easily set it up on your iPhone.

VoLTE allows 4G networks to carry voice calls and text messages, which are currently limited to the existing 2G and 3G services - and they don't work well with the Wi-Fi calling setup.

Airtel customers on Samsung S10, S10+, S10e, M20 and One Plus 6 & 6T can configure Airtel Wi-Fi calling to seamlessly switch to voice over wi-fi inside their homes/offices.

With WiFi Calling, you can even set up other iCloud-connected devices — like an iPad, iPod, or Mac — to make calls and send texts over WiFi.

To setup wifi calling using Google Hangouts Dialer for free and without SIM card, check out our guide on how to setup making calls and receiving calls.

Wi-Fi can easily serve as a backup for your cellular network for calling and texting, especially if you find yourself without signal.