It's working fine for me. Just used it now on a call. Have bad cell service in my house, so it's perfect.
I restarted the phone and reset network settings and nothing.
Working fine for me as well. Do you see any indicator for "T-Mobile Wi-Fi" showing up in the status bar? If not, have you tried toggling wi-fi calling on and off in the settings?
And are you able to make any calls at all? If not, you might need to pay your bill.![]()