Except in uncommon cases like making a premium call, domestic Wi-Fi calls should be free.
If you make a VoIP call over your data network, however, that will eat into your phone plan’s monthly data allowance, so be aware of that.
Does calling on WiFi use data?
You make and receive calls with Wi-Fi using your phone number. Helps you connect when cellular service isn’t available or you’re having poor signal issues, like dropped calls. Wi-Fi calls to US numbers are free, even while traveling internationally. Video Calls no longer need an LTE connection to be initiated in Wi-Fi.
Does WiFi calling use data or minutes?
There is a difference between WiFi calling and calls over WiFi. FaceTime is an example of a call over WiFi. FaceTime calls do not use minutes because they do not use the cellular voice network.
Does WiFi have data limits?
The amount of WiFi you can use depends on your broadband data allowance. Use more than this and you will be charged. If you’re using WiFi in a public place, you can typically use as much data as you want. Some places (like hotels) charge you for WiFi access and limit you to a certain amount per day.