According to an internal document (as reported by Android Police, T-Mobile will no longer allow new line activations with devices that do not support VoLTE (voice calls over LTE). This change will begin on August 4. Source: Android Police T-Mobile offered a statement to Android Police following the report: We’re making great progress building a truly transformative nationwide 5G network. As part of that, we will be phasing out some older technologies over time to free up even more capacity for LTE and 5G. In preparation for that and to give customers the best experience, those...
Source: https://www.gsmarena.com/tmobile_will_begin_requiring_volte_compatible_devices_for_future_line_activations-news-44429.php
