I've recently got my upgrade to s22 ultra from the s20 ultra and I'm having problems with my WiFi calling on phone app dropping off. I've spoke to my mobile provider who've told me it's not an issue on there end and most likely WiFi provider. I can't get through to them at moment but have since checked the feature whilst using my friends WiFi and its doing the exact same on hers, whenever I try to make a WiFi call it drops straight away and disconnects the call them come back on. When I had my s20 ultra I never had this issue it's just since updating to s22 ultra, has anyone else had this issue and have any suggestions, thanks 😊