Q: Unable to make recieve calls from Apple Watch, using AT&T WIFI calling, when the iPhone is powered off or in Airplane Mode.
I am working on this issue and wanted to get the community involved.
I am testing Apple Watch functionality and have been unable to resolve my issues with WIFI calling. I use AT&T and am connect to 5Ghz band on my Xfinity router.
I am able to make/receive calls from my iPad and Mac laptop when the iPhone is powered off/Airplane Mode; however this functionality is not working on the Watch. I can make and receive calls from the Watch when the phone is on.
Another issue is I'm not able to send and receive messages (blue or green bubbles) from the Watch - again when the phone is off or in Airplane Mode
I am going to copy in 2 portions of the website: http://help.apple.com/watch/
http://help.apple.com/watch/#/apd0443fb403
If your Apple Watch is in range of a Wi-Fi network that iPhone has connected to before, you can still do the following (even if iPhone is turned off):
- Send and receive Digital Touch messages
- Send and receive messages using Messages

- Make and receive phone calls
(if you have Wi-Fi calling enabled and you’re within range of a Wi-Fi network that your iPhone has connected to before) - Check current weather conditions
- Track your stocks
http://help.apple.com/watch/#/apd2fe746e86
Make calls over Wi-Fi
If your cellular carrier offers Wi-Fi calling, you can use Apple Watch to make and receive calls over Wi-Fi instead of the cellular network—even when your paired iPhone is not with you or is turned off. 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, then enable Wi-Fi calling on both your iPhone and Apple Watch.
Note: You can make emergency calls over Wi-Fi, but when possible, use iPhone over a cellular connection instead—your location information will be more accurate.
Enable Wi-Fi calling on iPhone. On iPhone, go to Settings > Phone and turn on both Wi-Fi Calling and Calls on Other Devices.
Enable Wi-Fi calling on Apple Watch. Open the Apple Watch app on iPhone, tap My Watch, tap Phone, then turn on Wi-Fi Calls. If you don’t see the setting, make sure you’ve enabled Wi-Fi calling on iPhone.
Please reply if you're able to perform either of these functions! And any troubleshooting you can think of!!
Apple Support
Posted on May 29, 2016 1:49 PM