I have had to use Wifi calling at home and school as service is poor in these locations. Yesterday, I came home to find my wifi calling was suddenly not working. I have tried to restart my phone, reset my network settings, turn on and off airplane mode, turn on and off wifi calling - nothing works. My phone is up-to-date with the latest iOS.
I called the support number and their solution was to try to fix the poor service, but I live in a basement suite so that has not been any help (I have accepted that the service is just consistently poor regardless of provider). Has anyone had this before and found a solution? Super frustrating as I either have to use WhatsApp/Messenger to make calls or go outside as of now.