Moto G7 Play missing setting for "Enhanced 4G LTE Mode" (volte)

[LSMFT]

New phone in service for 1 month. It's supposed to be VoLTE capable. Motorola Moto G7 Play model XT1952-4 (USA Variant used in USA) Android 9. Has never displayed the setting to enable "Enhanced 4G LTE Mode". The status bar icon displays LTE but there has never been an icon indicating VoLTE. The setting option and a VoLTE icon were present on my old phone using the same T-mobile SIM. The phone has been rebooted many times. The SIM has been removed and reinstalled. The phone has been booted into Safe Mode. None of those remedies corrected the problem. Solutions? Suggestions? Ideas? Help please. Thanks.

Settings > Network & Internet > Mobile Network
and also
Settings > Network & Internet > Mobile Network > Advanced

 

[James L]

The Sprint/Boost versions don't have Volte or Vowifi.

 

[LSMFT]

The Sprint/Boost versions don't have Volte or Vowifi.

Thank you for your reply, however the T-mobile SIM from my old phone worked fine, but when I transferred the SIM my new phone there wasn't any VoLTE. T-mobile's website says the new phone's IMEI has complete compatibility with their service.