I'm a new Xfinity Mobile customer and purchased two iPhone XS devices and one iPhone XR. All three phones are facing the same issue; while on WiFi calling incoming calls will ring but will fail as soon as answered.
This is a critical issue for me. I work from home, and I do not have reliable network coverage at my house. This basically means that almost every phone call I receive requires a call-back, and is extremely unprofessional.
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