I don't know why but about a month ago, my mobile data stopped working while I am on a phone call. I have an iPhone XR and I'm on the Xfinity Mobile unlimited plan. If I try to use an app or surf the web or get email while I'm on a call, I get a message that says "cellular data is not available during this call".
I called Xfinity twice about this and they told me that Xfinity does not have the abililty for data usage while making a call. This, of course is absolutely wrong and why TWO different tech support reps told me this is just unbelievable. Anyway, my girlfriend pointed out that in "settings" > "cellular" > "cellular data options" > "voice & data" you have to have "LTE, VoLTE On" needs to be checked. Once I checked this, my problem went away and everything worked as it should.
Someone please tell the tech support reps this basic tip and save others from wasting their time.
... View more