iPhone (iOS) · Network & Internet
Make and Receive Calls Over Wi-Fi
Wi-Fi Calling routes phone calls and texts through a connected Wi-Fi network when cellular coverage is weak or unavailable, and can register your number so other Apple devices signed into the same account can also make calls.
How to open Wi-Fi Calling
- Open Settings → Phone → Wi-Fi Calling
- Toggle Wi-Fi Calling on This iPhone
- Enter or confirm your emergency address
- Enable Add Wi-Fi Calling for Other Devices if desired
- Test a call while connected to Wi-Fi to confirm it's working
What you should know
- Requires carrier support and a one-time activation per line
- Automatically falls back to cellular when Wi-Fi signal is poor mid-call
- Emergency address must be set for accurate location during emergency calls over Wi-Fi
- Can extend calling to iPad and Mac via 'Calls on Other Devices'
Why it matters
Wi-Fi Calling solves one of the most common frustrations with mobile service: dead zones inside buildings with thick walls or in basements where cellular signal doesn't reach but Wi-Fi does. For international travelers, it can also allow calls over a local Wi-Fi network without triggering expensive roaming charges, depending on carrier policy. Setting an accurate emergency address is a genuinely important safety detail, since Wi-Fi calls don't carry the same automatic location data cellular towers provide.
Best practices
- Keep the emergency address updated whenever you relocate, especially for a home Wi-Fi network
- Enable Wi-Fi Calling before traveling to areas with unreliable cellular coverage
- Check carrier-specific roaming charges before relying on it internationally
- Enable Calls on Other Devices if you often work at a Mac or iPad without your phone nearby
Common problems and fixes
- Wi-Fi Calling toggle is missing
- Confirm the carrier supports it and the account line has it activated; some carriers require an initial setup step
- Calls drop when switching between Wi-Fi and cellular
- This can happen at the handoff point; ensure both Wi-Fi and cellular signal are reasonably strong
- Emergency calls show the wrong address
- Update the registered address under Settings > Phone > Wi-Fi Calling
Tips and tricks
- Test Wi-Fi Calling at home before you need it in a genuine coverage gap
- Pair with Calls on Other Devices to answer calls hands-free from a Mac while working
Frequently asked questions
Does Wi-Fi Calling use cellular minutes?
No, calls route over Wi-Fi and typically don't count against cellular minutes, though carrier policies vary.
Can I use Wi-Fi Calling abroad to avoid roaming?
Some carriers support this, but check specific international Wi-Fi Calling policies first.
Does it work without a SIM?
It generally requires an active line with carrier support, even though the call itself routes over Wi-Fi.
Related settings
- CellularCellular settings control your mobile data connection, including which apps can use cellular data, whether 5G or data roaming is allowed, and how much of your monthly plan each app has consumed.
- Wi-Fi ConnectionWi-Fi settings let you join nearby networks, share passwords instantly between Apple devices, and manage previously joined networks.
- VPNVPN settings let your iPhone route its network traffic through a virtual private network, commonly used to access a workplace network securely or to add an extra layer of privacy on public Wi-Fi.
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