What is WiFi calling, and when should you use it?

WiFi calling lets you make and receive calls using your smartphone's WiFi connection in areas with weak cellular service. Most modern smartphones and major carriers (Verizon, AT&T, T-Mobile, etc.) support it. However, you'll first need to enable this feature.

This guide covers the basics of WiFi calling, including how it works and whether international calls are free. After enabling WiFi calling on your iPhone or Android, you can explore these details further.

How WiFi Calling Works

WiFi calling blends traditional cellular calls with VoIP services (like Skype). Instead of a third-party app, your call is routed through your internet connection to your carrier, then connected to the recipient via the cellular network. Your phone number and carrier remain the same.

The key difference? WiFi calling uses your WiFi, not mobile data. This is ideal for areas with poor cell service but good WiFi, such as rural locations with satellite internet or buildings with unreliable cellular reception. However, it's useless if you're completely offline, and you won't notice a difference if your mobile data is strong.

Enabling WiFi Calling on iPhone

On iPhones, navigate to Settings > Phone > WiFi Calling. If this option is missing, your carrier likely doesn't support it. You might need to verify your address for emergency services.

Nearly all modern iPhones support WiFi calling; only very old models (pre-iPhone 6) might be excluded.

Enabling WiFi Calling on Android

For Android devices, go to the Phone App > More > Settings > Calls, and activate WiFi Calling. Absence of this setting indicates a lack of carrier support.

Most Android phones running Android 6.0 Marshmallow (or later) support WiFi calling. If you're unsure, check your Android version. Phones purchased within the last five years almost certainly support it.

WiFi Calling Costs

WiFi calling isn't free, even on public WiFi. It's typically included in your regular cell plan, but extra charges may apply for international calls or premium numbers. Think of it like using Skype to dial a number, not FaceTime.

[Related: Top WiFi Boosters]

Review your cell plan for details on WiFi calling charges.

WiFi Calling on iPad or Apple Watch

Yes, if your carrier supports WiFi calling on iCloud-connected devices (check Apple's support page), you can use it on your iPad and Apple Watch.

On your iPhone's Settings app, go to Phone > WiFi Calling, and enable Add WiFi Calling For Other Devices. iPad calls route through your iPhone. With an Apple Watch, you can receive calls even with your iPhone off or distant, provided your iPhone previously connected to the WiFi network.

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