Make and receive calls with Wi-Fi on iPhone and other devices
When your iPhone has a low cellular signal, use Wi-Fi Calling to make and receive calls through a Wi-Fi network. With Continuity, you can make and receive calls on your iPad, iPod touch, and Mac by relaying calls through your iPhone.
To make calls this way, you need iOS 9 or later and OS X 10.10 or later. You must be signed in to iCloud and FaceTime on all your devices using the same Apple ID as on iPhone.
Note: Wi-Fi Calling on other devices is available with some carriers, and cellular charges may apply.
You must first set up your iPhone, then your other devices. If you log out of iCloud or FaceTime on iPhone, Wi-Fi calling is disabled.
Set up Wi-Fi calls on your iPhone
On your iPhone, go to Settings
> Cellular.If your iPhone has Dual SIM, choose a line (below Cellular Plans).
Tap Wi-Fi Calling, then turn on Wi-Fi Calling on This iPhone.
Enter or confirm your address for emergency services.
Note: Emergency calls on your iPhone are routed through cellular service when available. In the event that cellular service isn’t available, and you have enabled Wi-Fi Calling, emergency calls may be made over Wi-Fi, and your device’s location information may be used for emergency calls to aid response efforts, regardless of whether you enable Location Services. Some carriers may use the address you registered with the carrier when signing up for Wi-Fi Calling as your location. When connected to Wi-Fi calling, your iPhone may not receive emergency alerts.
When Wi-Fi Calling is available, “Wi-Fi” is displayed after your carrier name in the status bar, and all your calls go through Wi-Fi.
If you sign out of iCloud or FaceTime on iPhone, Wi-Fi Calling is disabled.
Note: When making calls on iPhone SE, iPhone 6, iPhone 6 Plus, and later, if the Wi-Fi connection is lost, calls switch automatically to your carrier’s cellular network using VoLTE (Voice over LTE), if available and turned on. See View or change cellular settings on iPhone. (VoLTE calls also switch to Wi-Fi when a Wi-Fi connection becomes available.) On earlier iPhone models, and on iPad, iPod touch, or a Mac, a call is dropped if you lose the Wi-Fi connection. Contact your carrier for feature availability.
Allow Wi-Fi calls on your other devices
On your iPhone, go to Settings
> Cellular.If your iPhone has Dual SIM, choose a line (below Cellular Plans).
Do any of the following:
Tap Calls on Other Devices, turn on Allow Calls on Other Devices, then choose the devices where you’d like to make and receive calls.
This allows other devices signed into your iCloud account to make and receive calls when they’re nearby your iPhone and on Wi-Fi.
Tap Wi-Fi Calling, then turn on Add Wi-Fi Calling For Other Devices.
This allows other devices signed into your iCloud account to make and receive calls even when your iPhone isn’t nearby.
Turn on Wi-Fi Calling on your iPad, iPod touch, or Mac
On your other devices, sign in to iCloud and FaceTime with the same Apple ID that you use on your iPhone.
Turn on Wi-Fi calling:
On your iPad or iPod touch: Go to Settings
> FaceTime, then turn on FaceTime and Calls from iPhone. If you’re asked, turn on Wi-Fi calling.On your Mac: Open FaceTime, then choose FaceTime > Preferences > Settings. Select “Calls from iPhone.” If an Upgrade to Wi-Fi Calling button appears, click it, then follow the instructions.
Note: If you enable Wi-Fi Calling, emergency calls may be made over Wi-Fi, and your device’s location information may be used for emergency calls to aid response efforts, regardless of whether you enable Location Services. Some carriers may use the address you registered with the carrier when signing up for Wi-Fi Calling as your location.
Make or receive a Wi-Fi call on your iPad, iPod touch, or Mac
Make a call: Tap or click a phone number in Contacts, Calendar, FaceTime, Messages, Spotlight, or Safari. Or open FaceTime, enter a contact or phone number, then tap
.Note: If you make a call from another device by relaying it through your iPhone with Dual SIM, the call is made using your default voice line.
Receive a call: Swipe or click the notification to answer, ignore, or respond with a quick message.
For more information about Wi-Fi calls, see the Apple Support article Make a call with Wi-Fi Calling.