According to internal T-Mobile documents, the carrier plans to rapidly fast track plans to shut down its 2G and 3G voice networks, and affected customers could be forced to upgrade handsets or leave the network in a matter months. Most carriers have already shut down their legacy 2G networks, so the frequencies can be re-used for LTE and 5G, and 3G’s expiration date is rapidly approaching. AT&T started warning customers yesterday that phones without 4G voice calling would no longer work starting in 2022.
An internal T-Mobile document obtained by Android Police pictured below states that starting August 4th of this year — mere weeks from now — T-Mobile will require all new devices on the network to support Voice over LTE (VoLTE). Existing customers with a non-compatible phone won’t be immediately impacted, but starting in January 2021, all incompatible devices will no longer be able to use T-Mobile, possibly at all. Affected customers will receive a text informing them of the change “in the near future.”