Most of the winter road does not have cellular network coverage but if you have access to a Wi-Fi hotspot you can still call or text with WiFi calling. Not all devices or mobile network operators support Wi-Fi calling. Most of the winter road does not have cellular network coverage but if you have access to a Wi-Fi hotspot you can still call or text with WiFi calling. Not all devices or mobile network operators support Wi-Fi calling.

Here is how to enable Wi-Fi calling on Android and iOS:

Android

  • Open the Phone app .
  • Tap More  And then Settings.
  • Tap Calls.
  • Tap Wi-Fi calling. If you don’t see this option, it’s because your carrier or phone doesn’t support this feature.

For more information read here:
https://support.google.com/phoneapp/answer/2811843?hl=en

iOS

  • Turn on Wi-Fi calling in Settings > Phone > Wi-Fi Calling. You might need to enter or confirm your address for emergency services.*
  • If Wi-Fi Calling is available, you’ll see Wi-Fi after your carrier name in the status bar. Then your calls will use Wi-Fi Calling.

For more information read here:
https://support.apple.com/en-us/HT203032

Consult your cellular network provider for any further support.