Chris  

@purism great news! The #librem5 VoLTE works great on T-Mobile USA!

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Elias
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@kop316

Do you need to do something to enable that, or it works out of the box?

I think there has been some problem with VoLTE, not sure what, but does this mean the problem is solved?

@purism

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Chris  

@eliasr @purism

I think it is carrier dependent, but T-Mobile seems to do pretty well for working out of the box. I followed the instructions here:

source.puri.sm/Librem5/OS-issu

But I do know there are some caveats to it (like some carriers will not allow you to downgrade).

1
Elias  

@kop316 @purism

Thanks, but I'm confused about what this means.

My understanding (could be wrong) is that my L5 moves from 4G down to 3G or 2G when I make a phone call, and that happens because VoLTE is not working. If I select "4G Only" in "Settings-->Mobile-->Network Mode" then I can no longer make calls.

I think that if VoLTE was working, then I would still be able to make calls when having selected "4G Only".

Can you make calls while having "4G Only" selected?

1
Chris  

@eliasr @purism

Your understanding is consistent with my understanding. The only way to make calls with only 4G is VoLTE

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