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10 Tech How-To

Enable Wi-Fi Calling on iPhone & Android

Guide 10-13351 · Updated · Step by step

Wi-Fi Calling lets you make and receive calls over a Wi-Fi network instead of a cellular tower, which is a lifesaver in areas with poor cell coverage but a solid internet connection. This guide walks you through enabling it on both iPhone and Android devices, covering the prerequisites, step-by-step setup, common mistakes, and troubleshooting.

What You’ll Need

  • A compatible iPhone (iPhone 5s or later, generally) or Android smartphone.
  • A carrier that supports Wi-Fi Calling (most major US and international carriers do, but check with yours).
  • An active SIM card or eSIM on that carrier’s network.
  • A stable Wi-Fi connection with decent upload/download speeds (at least 1 Mbps is recommended).
  • Your phone’s software updated to the latest version.

Step-by-Step

On iPhone (iOS 15 and later)

  1. Open the Settings app.
  2. Tap Phone.
  3. Tap Wi-Fi Calling.
  4. Toggle Wi-Fi Calling on This iPhone to the green ON position.
  5. If prompted, confirm your emergency address (this is used for 911 calls over Wi-Fi). Enter it and tap Save.
  6. Once enabled, your carrier name will appear next to the Wi-Fi icon in the status bar (e.g., “VZW Wi-Fi”).

On Android (varies by manufacturer, but generally similar)

  1. Open the Phone app (the dialer).
  2. Tap the three-dot menu (â‹®) in the top-right corner.
  3. Select Settings or Call Settings.
  4. Look for Wi-Fi Calling or Calls > Wi-Fi Calling.
  5. Toggle it to ON.
  6. If asked, set your emergency address and confirm.
  7. You’ll see a Wi-Fi icon or “Wi-Fi Calling” in the status bar when active.

Alternative Android path: On some phones (like Samsung), go to Settings > Connections > Wi-Fi Calling and toggle it on. On Pixel phones, it’s under Settings > Network & Internet > Mobile network > Wi-Fi Calling.

Common Mistakes

  • Not checking carrier support: If the option is missing, your carrier likely doesn’t support it on your plan or device.
  • Forgetting to set an emergency address: Many carriers require a physical address for 911 calls. Skipping this step can leave Wi-Fi Calling disabled.
  • Enabling it on the wrong SIM: On dual-SIM iPhones, you must enable Wi-Fi Calling for the specific line you want to use. Check under each line’s settings.
  • Assuming it works during a power outage: If your modem/router is down, Wi-Fi Calling won’t work, even if your phone has battery.
  • Confusing it with VoLTE: VoLTE uses the cellular network, not Wi-Fi. They are separate features.

Tips

  • Keep Wi-Fi Calling on by default: It seamlessly switches between Wi-Fi and cellular when you move, so there’s no downside to leaving it on.
  • Use it abroad: Wi-Fi Calling can help you avoid international roaming charges when you’re connected to Wi-Fi, but check your carrier’s policy.
  • Improve call quality: Use a 5 GHz Wi-Fi band if your router supports it, as it’s less congested than 2.4 GHz.
  • Update your emergency address if you move: This ensures 911 services can find you if you call over Wi-Fi.
  • Test it: After enabling, turn on Airplane Mode and then turn Wi-Fi back on. Make a test call to see if it works.

Troubleshooting

Wi-Fi Calling option is missing

  • Contact your carrier to confirm Wi-Fi Calling is enabled on your account.
  • Update your carrier settings (iPhone: Settings > General > About, then tap if an update appears).
  • Restart your phone.
  • On Android, ensure your software is up to date (Settings > System > System update).

Calls still drop or won’t connect

  • Check your Wi-Fi signal strength. Move closer to the router.
  • Reboot your router and modem.
  • Disable and re-enable Wi-Fi Calling.
  • Try a different Wi-Fi network (e.g., a friend’s house) to see if the issue is your network.

Can’t hear the other person or they can’t hear you

  • Check your phone’s microphone and speaker for obstructions.
  • Ensure no other apps are using the microphone (like voice assistants).
  • Test with a regular cellular call to isolate the issue.

Emergency address error

  • Make sure the address is entered exactly as the carrier expects (no abbreviations unless specified).
  • Try re-entering it in the Wi-Fi Calling settings.

Frequently Asked Questions

Will Wi-Fi Calling use my data plan?

No. Wi-Fi Calling uses your Wi-Fi network’s internet connection, not your cellular data plan. However, if you’re on a limited home internet plan, it will count against that.

Does Wi-Fi Calling work internationally?

Yes, but it depends on your carrier. Some carriers allow free Wi-Fi Calling from abroad, while others may charge international rates. Check with your carrier before traveling.

Can I use Wi-Fi Calling with Airplane Mode on?

Yes, that’s a common way to force Wi-Fi Calling. Turn on Airplane Mode, then manually turn on Wi-Fi. Your phone will then use Wi-Fi for calls.

Why does my phone switch back to cellular?

Your phone prioritizes the stronger signal. If cellular is stronger, it will use that. You can force Wi-Fi Calling by turning on Airplane Mode and re-enabling Wi-Fi.

Is Wi-Fi Calling secure?

Yes, calls are encrypted between your phone and your carrier’s network, similar to regular cellular calls. The Wi-Fi connection itself should be secured with a password (WPA2/WPA3).

Does Wi-Fi Calling work on all Android phones?

No, it requires a compatible handset and carrier support. Most modern Android phones from major brands (Samsung, Google, OnePlus, etc.) support it, but budget or carrier-locked devices may not.

Related

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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