Hi ​@MeMark ,

I’m really sorry you’re having this issue, I understand how important Wi-Fi Calling is for staying connected.

With iD Mobile, Wi-Fi Calling may appear greyed out if the network has not fully enabled the feature on your line or if the phone settings are not correctly prioritising the eSIM profile.

Please try these steps on your Redmi Note 15:

Make sure the iD Mobile eSIM is selected as the primary SIM for calls
Go to Settings → SIM Cards & Mobile Networks → Wi-Fi Calling and check if it can be enabled
Turn Airplane Mode ON → Turn Wi-Fi ON → Try enabling Wi-Fi Calling again
Restart your phone after checking settings
Ensure your phone software is updated to the latest version

 If Wi-Fi Calling is still greyed out, please send us a private message with your mobile number and postcode, and we will check whether Wi-Fi Calling is activated on your account.

Lamiya

I've done all of that...