iPhone XR Wifi calling
I have an iPhone XR. Serial No F4***XK7. IOS 16.5.1 Both my wife and myself are on 02 volt and have bad signal strength in doors (1 bar if were lucky) and continually getting missed calls messages. I have successfully set up my wife's iPhone for Wifi calling which has alleviated the issue for her, but I do not seem to have this setting option on my XR. Could anyone possibly advise on this issue. Regards
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iPhone XR, iOS 16