Quick answer: on iPhone go to Settings > Mobile Data > Wi-Fi Calling and turn on Wi-Fi Calling on This iPhone. On a Pixel it's Settings > Network & internet > SIMs > Wi-Fi calling. On Samsung, open the Phone app, tap the three dots, then Settings > Wi-Fi Calling.
Turn it on
iPhone
- Go to Settings > Mobile Data (tap your line if you have two).
- Tap Wi-Fi Calling.
- Turn on Wi-Fi Calling on This iPhone.
- Confirm your address for emergency services if asked.
- You'll see "Wi-Fi" next to the network name in the status bar when it's working.
Android (Google Pixel)
- Go to Settings > Network & internet > SIMs.
- Tap Wi-Fi calling.
- Turn on Use Wi-Fi calling.
Samsung Galaxy
- Swipe down twice from the top and tap Wi-Fi Calling.
- Or open the Phone app, tap ⋮ > Settings > Wi-Fi Calling.
- Choose Wi-Fi preferred if your mobile signal is weak at home.
Does my network support it?
EE
Available to anyone on EE with a compatible phone. Calls come out of your normal allowance, and EE says a 30-minute call uses about 10MB of Wi-Fi data.
O2
O2 says all its 4G and 5G phones support Wi-Fi calling and it switches on automatically, on Pay Monthly and Pay As You Go, at no extra cost. It only works in the UK.
Vodafone
Vodafone says you need one of its more recent plans and a compatible phone. You can switch it on in the My Vodafone app.
Many smaller networks also support Wi-Fi calling, but not all, so check before you switch if it matters to you.
Good to know
- Emergency calls: Apple says emergency calls use the mobile network when it's available. O2 notes that 999 call handlers may ask for your location on a Wi-Fi call.
- Abroad: UK networks' Wi-Fi calling generally works in the UK only (O2 says so explicitly). For calls abroad, WhatsApp or FaceTime over Wi-Fi are good alternatives.
- Living rurally? Wi-Fi calling pairs well with full fibre. See our Highlands broadband guide.
Still no signal where you need it?
Different networks are stronger in different places. You can switch and keep your number, with SIM-only plans from £5 a month.
FAQs
Does Wi-Fi calling cost extra?
Not on EE or O2, which say calls come out of your normal allowance. Check with smaller networks, but most don't charge extra.
Does Wi-Fi calling use my mobile data?
No. It uses your Wi-Fi connection. EE says a 30-minute call uses about 10MB of Wi-Fi data.
Can I use Wi-Fi calling abroad?
UK networks' Wi-Fi calling generally only works in the UK. O2 says its service isn't available abroad.
Do I need to turn Wi-Fi calling on every time?
No. Once it's on, your phone uses it automatically whenever you're connected to Wi-Fi and it's the better option. On O2 it's switched on automatically.
Steps checked on 2 November 2026 against official help pages: Apple: Wi-Fi Calling · EE · O2 · Vodafone. Menu names can vary slightly by phone model and software version.