I have been reading online blogs where MANY people are having dropped calls with WIFI calling on Xfinity mobile. I am having the same problem. I've worked through the issue and have found the problem.....BUT NO SOLUTION.
When calling on WIFI the phone will show XM WIFI. Calls go through with no issues. When the phone shows XFINITY MOBILE no WIFI calls will go through. The problem is that the phone will switch randomly between the two settings. Thus dropping your calls. I've worked with Tier 1, 2 and 3 people at Xfinity and no resolution. It happens with 3 different models of iphone and a Galaxy phone. I happens with 3 different modems. HEY XFINITY, THIS IS NOT A USER SIDE PROBLEM.
I've been dealing with this issue for a year now. I'm praying we don't have an actual emergency at my home because I'll have to jump in the car and drive a mile down to the road to call for help. XFINITY please work on a resolution, I'm certainly not the only person with this issue.
Here are many examples of users with the same issue.
I have this exact same issue and have had it on 2 iPhones since we switched to xfinity mobile. It's so bad and dysfunctional that I've just had to turn the feature off so that I can get calls. Otherwise, when I attempt to pick up the call it fails. It usually rings, but then just fails and drops.
I have no issue with wifi calling on Moto G7 Power
I never got wifi calling to work with iphone XR since Sep 19
Apple has been supportive and even replaced my iphone.
They said xfinity should fix it.
Problem is with Xfinity software/configuration and their tier 2 is
of no help to resolve. They submit a ticket but dont ever get a response.
Onb iphone wifi calling does not kick in unless one is on airplane mode. And
then when we turn off airplane mode, all incoming calls fail. Then only
way to recover is to turn off wifi calling and\reset network settings.
iphone unusable for wifi calling on xfinity mobile.l I verified this also with Xs.