Check Airplane Mode is turned off:
This setting is located at: Home > Settings > Airplane Mode off.
Check Wi-Fi connection:
Turn on Wi-Fi Calling:
This setting is located at: Home > Settings > Apps settings > Phone settings > Wi-Fi Calling > Wi-Fi Calling on This iPhone on.
Re-enter your Wi-Fi password / Forget and rejoin the Wi-Fi network:
Restart your iPhone:
Remove and reinsert the nano SIM:
This will only be applicable to iPhones that use a physical SIM card.
Reset Network Settings:
This setting is located at: Home > Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. This will erase saved Wi-Fi passwords.
You've completed the steps!
