Recently hubby, also with ID for several years, has been told that callers have been unable to reach him because they get a message saying his number is “not registered on the network” This is an occasional, not constant problem. The last person to be told this was his GP ringing for a phone consultation, which is really worrying!.
Best answer by Michelle
Please follow the below steps to turn on WiFi calling:
Navigate to and open the Phone app.
Tap More options (the three vertical dots), and then tap Settings.
Tap Wi-Fi Calling, and then tap the switch to turn the feature on. If you receive a popup asking you to enter your Emergency contact information, review and enter the requested information, and then tap Save.
Wi-Fi calls will now be enabled. To turn Wi-Fi Calling off, just tap the switch again.
On some phones, you can also enable Wi-Fi Calling from the Quick settings panel. Swipe down from the top of the screen using two fingers, and then tap the Wi-Fi Calling icon to turn it on.