HTC U11 unlocked version received an update to Android Pie on Tuesday, May 28th. Will the Sprint version of the U11 receive an update in near future? Will we ever get VoLTE?
After checking this area and this phone, I see that VoLTE should be available in the Chicago area. I'm also not seeing this device listed at one that is compatible with VoLTE.
It just means that at this time the U11 hasn't been fully tested and enabled on the network for VoLTE. We don't have a particular date to know exactly when the U11 will be ready to go for VoLTE, but we are working on adding more devices all the time.