My iphone 11 suddenly stopped answering incoming calls on wifi calling. The phone rings. I answer - dead air. Meanwhile its still ringing for the caller like I never answered. Outgoing calls work. and can answer incoming calls if I answer the call waiting while I’m on another call. I can answer the calls when I am in cell service area, but not on wifi calling.
Tried Koodo assist, but the digital help couldnt help and I couldnt request a call back because I cant answer incoming calls.