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Real time voice and data downloads of about 14Mbps from LEO test satellite to unmodified phones by AST Spacemobile.

https://www.theverge.com/2023/9/19/23879527/att-cellular-sat...

Yes, it was not for high bandwidth applications. Nevertheless when you can receive something like SMS it seems possible to locate you phone with similar technology.

I think these guys have explainers on their site:

https://lynk.world/