T-Mobile is reportedly going to be sending out some messages like that too. It seems that the company could be going about it a little differently than at & T.

T-Mobile will reportedly require phones on its network to support voice over LTE (VoLTE) starting in January 2021. That means if your phone does n’t currently support VoLTE, you’ll need to upgrade if you want to be able to keep making calls with that phone on T-Mobile.

The document Android Police shared was shared by Android police. Here are the details of what police shared, and if you’d like to look for yourself.

T-Mobile did n’t confirm the timeline laid out in the document. T-Mobile shared some details that line up.

T-Mobile will be phasing out older technologies over time to free up even more capacity for LTE and 5G. The VoLTE capable device represents the overwhelming majority of devices on the network.

T-Mobile seems to be saying that unless you have n’t upgraded your phone for a very long time, you probably wo n’t run into issues once VoLTE is required.

At & T-Mobile sent an email to customers that their phone is’not compatible with the new network’. Some customers felt the email was so egregious that they believed it was a scam.

At & T plans to shut down its 3G network in early 2022. Some devices will actually stop working until early 2022.