O2

Hi I have an Iphone XR and the WIFI calling goes on and off constantly. The phone sits next to the router with full signal. However in the same house, an Iphone 7 Plus stays connected to WIFI calling pretty much all of the time, on the same WIFI netw...

Hi I have an Iphone XR and the WIFI calling goes on and off constantly. However in the same house, an Iphone 7 Plus stays connected to WIFI calling 'most' of the time, on the same WIFI network. Both pay monthly sims. Any ideas why this happens please...