Stop auto switching from wifi-calling to mobile data
Is it possible to stop iPhone automatically switching from wifi-calling to mobile data?
I live in a remote area with terrible reception, so wifi-calling is extremely useful. When just calling through wifi-calling I have no issues. However, occasionally, I get one bar of mobile data mid call and my iPhone seems to automatically switch mid call to that, which then reduces the call quality dramatically - often resulting in me having to end the call and try again via FaceTime audio or WhatsApp!
iPhone 13 Pro, iOS 15