To turn on Wi-Fi Calling, follow your phone maker's own help pages for the steps. Then use your carrier's support page to confirm your plan supports it.
Where to look for iPhone instructions
Use Apple's official page rather than a third-party guide.
Where does Google explain it for Android?
Google covers calling settings in the Phone app help center. That page is about Google's Phone app. If your Android phone uses a different dialer, the menus may look different, so check your phone maker's help pages too.
Why does your carrier matter?
Whether the option works depends on your carrier as well as your phone. Menus also differ between phones, software versions and carriers. A switch someone else describes may not be where they said, or may not appear at all. If the setting is missing or greyed out, your phone may still be fine.
Go to your carrier's Wi-Fi Calling support page and look for three things:
- whether your plan includes Wi-Fi Calling
- how Wi-Fi calls are counted on your plan
- whether you need to enter an emergency address, and how to change it when you move
If the page doesn't answer those, call your carrier's customer service.
What to ask when you call your carrier
Have your phone model and plan name ready before you call. Then ask:
- Does my plan include Wi-Fi Calling, and is it turned on for my line?
- How are Wi-Fi calls counted on my plan?
- Do I need to register an emergency address, and how do I update it?
- The switch is greyed out on my phone. Is there anything you need to change on your side?
Write down the answers and the date of the call. You'll have them ready if the setting stops working later.
When to check the setting again
Menus differ between software versions and carriers, so the option can move or disappear after you update your phone or switch carriers. After either change, open your phone's settings and look for Wi-Fi Calling again. If you move house, check your emergency address on your carrier's page.
