T-mobile support

However, on the webinar they had with their community, they stated that T-Mobile VoLTE will require an update to enable, so they might not be finished with T-Mobile's certification process yet.
 
ZTE's no stranger to the T-Mobile network. TMo even offers the ZTE Falcon® Z-917 WiFi Hotspot so's you can "Take your WiFi everywhere you want to be." If the A7 hasn't passed TMo certification yet, it should get it fairly quickly. Kind of like the Nexus 5X and 6P last year.
 
I spoke with some Product folks at ZTE recently. ZTE is trying their hardest to get this working with all of the major carrier features.

Posted via the Android Central App on the Moto X Pure Edition