I was considering purchasing a Moto X Pure Edition. Found out Lenovo broke VoLTE (for some networks?) on the Android Marshmellow update. Lenovo's suggested work-around? Turn off VoLTE.
Now it seems to me this could be a problem in TMO coverage areas served only by VoLTE, such as northern Michigan. Normally, without band 12 and VoLTE, one would roam onto AT&T's network. But what would happen on a device that's supposed to have VoLTE, so it does work on band 12, but VoLTE's been turned off?
Yes, and that really, really is Lenovo's suggestion. They may fix the problem when and if they release Android N for the Moto X Pure Edition, which they may do this fall. Here's the discussion on their site: https://forums.lenovo.com/t5/Moto-X-Pure-Moto-X-Style/Choppy-call-audio-after-MM-upgrade-w-VoLTE/td-p/3239629