How to turn on wifi calling on iPhone

The steps, as Apple gives them

Apple’s support page “Make a call with Wi-Fi Calling” opens by saying that if you have a Wi-Fi connection in an area with little or no cellular coverage, you can use Wi-Fi Calling to make or receive a voice phone call. Its steps, in order:

1. Open the Settings app.
2. Tap Cellular.
3. If your iPhone has multiple SIMs, scroll to the line you want to use with Wi-Fi Calling.
4. Tap Wi-Fi Calling and turn on Wi-Fi Calling on This iPhone.
5. Tap Enable. You might need to enter or confirm your address for emergency services.

Checking that it took. The page says that if Wi-Fi Calling is available you will see “Wi-Fi” in the status bar while viewing Control Center, and your calls will then use Wi-Fi Calling. Apple’s iPhone User Guide puts it as “Wi-Fi” displayed after your carrier name in the status bar, with all your calls going through Wi-Fi.

If the Wi-Fi drops mid-call. The User Guide says calls switch automatically to your carrier’s cellular network using VoLTE (Voice over LTE), “if available and turned on”. It adds that VoLTE calls also switch to Wi-Fi when a Wi-Fi connection becomes available. We tested none of this on a phone, and the exact menu wording can differ with your iOS version.

The address prompt, and what Wi-Fi Calling changes for emergency calls

Why it asks. Verizon, in its own help, says it is “required by the FCC to support 911 calls and collect a registered location” for Wi-Fi Calling, and that the address is used to route a 911 call and is “Isn’t used for billing or other purposes”. That is one carrier speaking for itself; Apple’s page says only that you might need to enter or confirm your address.

Cellular comes first. Apple’s page says that when cellular service is available, your iPhone uses it for emergency calls. If you turn on Wi-Fi Calling and cellular service is not available, emergency calls might use Wi-Fi Calling, and the device’s location may be used to aid the response whether or not Location Services is on. The User Guide adds that some carriers may use the address you registered when signing up as your location. Verizon says its 911 calls try cellular first even in Airplane Mode, and that if a caller is not at the registered address the call may not reach the closest emergency service provider.

One more catch. Apple’s User Guide says that when you are connected to Wi-Fi Calling, your iPhone may not receive emergency alerts. Verizon’s advice is to update your emergency address whenever you change locations.

When the Wi-Fi Calling option is not there

The first thing both Apple pages say is that the feature belongs to the carrier. The User Guide: “Wi-Fi calling isn’t available with all carriers or in all countries or regions. Contact your carrier for feature availability.” The support page says that if you cannot turn it on, you should verify that your carrier offers it and that your device software is up to date, and if both are true, contact your carrier.

Apple’s carrier list. Apple keeps a page, “Wireless carrier support and features for iPhone in the United States and Canada” (published 15 September 2026), with a features list for each carrier. In its United States section most carriers show a Wi-Fi Calling entry. Some do not: on the day we read it, Visible, Viaero, BetterRoaming and West Central Wireless had none. A few, among them AT&T, T-Mobile, Verizon, Mint Mobile and Xfinity Mobile, also carry a second line, “Wi-Fi Calling on supported iCloud-connected devices”, which matters for the section below. We read the list once: it is Apple’s snapshot, carriers change, and a missing entry is not proof that your own plan lacks the feature. Your carrier is the one to ask.

Verizon’s extra condition. Verizon says an iPhone must be connected to the Verizon network in the US to turn on Wi-Fi Calling, and that it cannot be activated after you leave the country. Verizon also says HD Voice must be active, which it is by default on its current smartphones. That is one carrier’s rule; we did not read the equivalent pages for T-Mobile or AT&T, which would not load for us.

Calls on an iPad, Mac or Apple Watch

Apple says that if your carrier supports Wi-Fi Calling on iCloud-connected devices, you can also make and receive Wi-Fi calls on other devices. The steps start on the iPhone: Settings, Cellular, Wi-Fi Calling, turn on Wi-Fi Calling on This iPhone, go back and tap Calls on Other Devices, turn on Allow Calls on Other Devices, and turn on each device in the list under Allow Calls On. The other device also has to accept the calls:

• iPad. Settings, then Apps, then FaceTime, then turn on Calls from iPhone. To call, open FaceTime, tap New FaceTime, enter a contact or number, and tap the Audio Call button.
• Mac. In FaceTime, choose Settings (or Preferences) from the FaceTime menu and turn on Calls from iPhone.
• Apple Watch. Wi-Fi Calling is enabled automatically when you turn on Allow Calls on Other Devices. To call, open the Phone app, choose a contact and tap the Call button.

If you cannot add a device, Apple says to check that Wi-Fi Calling and Allow Calls on Other Devices are on and the device appears under Allow Calls On, and that the same Apple Account is used for FaceTime and iCloud on both devices. To remove one, turn off Wi-Fi Calling for it in the list under Calls on Other Devices. This route depends on your carrier, so it is the one most likely to be missing for you.

Does it cost anything?

Apple’s pages do not give a price, because the charges are the carrier’s. The one carrier we could read is Verizon, and what follows is its statement, not a general rule. For plans with unlimited talk and text, Verizon lists no charge for calls and texts to and from US numbers. Calls and texts to other countries from the US are charged under your international long distance plan, or at pay-as-you-go rates if you have none. Verizon also says Wi-Fi calls to US numbers do not count against your plan’s data allowance, but that “the Wi-Fi network you’re connecting to may charge an access fee”.

On data, Verizon gives these figures for its own service: a voice call uses about 1 to 5 MB, and a one-minute video call from 6 to 30 MB depending on resolution. When you place an international call over Wi-Fi Calling, Verizon says a voice prompt interrupts the call to warn you that charges may apply, so you can finish the call or hang up. Your plan may differ, and no other carrier’s terms were read for this page.

If it will not turn on or will not work

Apple’s support page has an order to follow once your carrier has confirmed it offers Wi-Fi Calling and your software is up to date. It says to wait two minutes before you go from one step to the next:

1. Open Settings, tap Cellular (choose the line if you have multiple SIMs), tap Wi-Fi Calling and make sure it is on.
2. Restart your iPhone.
3. Connect to a different Wi-Fi network: Apple says “Not all Wi-Fi networks work with Wi-Fi Calling.”
4. Turn Wi-Fi Calling off and then on again.
5. Go to Settings, then General, then Transfer or Reset iPhone, then Reset, then Reset Network Settings.

The last step clears saved Wi-Fi networks and passwords, so have them to hand: our guide to resetting network settings on iPhone says what it removes. If the problem is the Wi-Fi itself rather than the calling, fixing Wi-Fi that will not work and improving the signal come first. Verizon, for its part, suggests asking your internet provider for a Wi-Fi extender if the signal is weak. We tried none of these steps on a phone.