What is WiFi Calling?
With WiFi Calling you can place a phone call if you have a WiFi connection in an area with little or no cellular coverage. Instead of using your mobile carrier's network connection, you can make voice calls via a WiFi network. That could mean using a WiFi connection you have set up at home, or whatever WiFi hotspot you happen to be on when you're out and about, such as at a cafe or library. In most ways, it's like any other phone call and you still use regular phone numbers.
![WiFi Calling Process Flowchart](https://support.gmhec.org/TDPortal/Images/Viewer?fileName=4d1ac8c4-620c-4331-ba17-5d63a440af2b.jpg)
image courtesy of vodafone.co.uk
Enabling WiFi Calling
All three major US carriers (AT&T, T-Mobile, and Verizon) and prepaid carrier Tracfone provide built-in WiFi calling. See the carrier-specific links below to find out how to enable WiFi Calling for your mobile carrier.
Verizon
https://www.verizonwireless.com/support/wifi-calling-faqs/
AT&T
https://www.att.com/shop/wireless/features/wifi-calling.html
Sprint
Sprint has become T-Mobile; see below.
T-Mobile
https://www.t-mobile.com/offer/wifi-calling-wifi-extenders.html
Tracfone
https://e911-reg.tracfone.com/wps/portal/home/!ut/p/a1/dYzLCsIwFES_JtvcKw2tuAtFKVYEF9J6N5KWNC3WpMRowK_3tROd3RnODBDUQFbdBqPC4KwaX0zpEWdlXkiBJe5WGcr9MhXbLE8QBVRAH-VPJMIayIyueb8dpG2SuQHyutNee371z7oPYVowZBhj5MGrtnNW89adGf7a9O4SoP52YTrZ-0ZX8gEbkSEx/dl5/d5/L2dBISEvZ0FBIS9nQSEh/?_ga=1.232729821.310287348.1473702561