Wi-Fi Calling On Apple Watch Series 3 (Cellular)

Make calls over Wi-Fi

If your cellular carrier offers Wi-Fi calling, you can use your Apple Watch to make and receive calls over Wi-Fi instead of the cellular network—even when your paired iPhone isn’t with you or is turned off. Your Apple Watch just has to be within range of a Wi-Fi network that your iPhone has connected to in the past.

To see if your carrier offers Wi-Fi calling, see the Apple Support article Make a call with Wi-Fi calling, and enable Wi-Fi calling on your iPhone.

1. On your iPhone, go to Settings > Phone, tap Wi-Fi Calling, then turn on both Wi-Fi Calling on This iPhone and Add Wi-Fi Calling For Other Devices.
2. Open the Phone app  on your Apple Watch.
3. Choose a contact, then tap .
4. Select the phone number or FaceTime address you want to call.

Note: You can make emergency calls over Wi-Fi, but when possible, use your iPhone over a cellular connection instead—your location information is more accurate. Make sure your emergency address is up to date—on your iPhone, go to Settings > Phone > Wi-Fi Calling, then tap Update Emergency Address. If emergency services can’t locate you, they go to your emergency address.

Are both the watch and phone updated to the latest versions of their respective operating systems?

ASC - Late 2012 Mac mini, macOS 10.14.6; Watch, series 5 GPS/cellular, watchOS 6.2.8; iPad Air 2, ipadOS 13.6.1; iPhone 8+, iOS 13.6.1; TV 4th Gen, tvOS 13.4.8;  HomePods, audioOS 13.4.8 and Airport Express w/ Airplay 2

Great.

The last step is have a chat with your provider, Wi-Fi calling is a carrier feature.

Yeah and your cellular watch sharing iPhone number provided by your carrier.

Use Contact Support link at the top right of this page.