T-Mobile Wants to Turn Off 2G and 3G—But Not Quite Yet

“What do we do first, 3G or 2G? That’s primarily driven by what you can do on voice.” With 70 perecent of T-Mobile’s phone calls now on voice-over-LTE (VoLTE), and all of T-Mobile’s recent phones supporting VoLTE, it’s all about peeling longer-term …
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