"T-Mobile says it’s getting rid of mobile dead zones, thanks to a new partnership with SpaceX’s Starlink satellite internet, at an event hosted by T-Mobile CEO Mike Sievert and Elon Musk. With their “Coverage Above and Beyond” setup, mobile phones could connect to satellites and use a slice of a connection providing around 2 to 4 Megabits per second connection (total) across a given coverage area.
That connection should be enough to let you text, send MMS messages, and even use “select messaging apps” whenever you have a clear view of the sky, even if there’s no traditional service available."
https://www.theverge.com/2022/8/25/23320722/spacex-starlink-t-mobile-satellite-internet-mobile-messaging
"Last year, Elon Musk and T-Mobile CEO Mike Sievert announced Coverage Above and Beyond, a joint initiative to bring Starlink satellite coverage to compatible T-Mobile phones and other devices. Less than a year later, during a panel at the Satellite Conference and Exhibition 2023, SpaceX VP Jonathan Hofeller said the company would "start getting into testing" its satellite-to-cell service this year."
https://www.engadget.com/the-morning-after-spacex-prepares-for-starlink-satellite-to-cell-phone-service-112432565.html
SpaceX to Serve T-Mobile Phones With Second-Gen Starlink Satellites
https://www.pcmag.com/news/spacex-to-serve-t-mobile-phones-with-second-gen-starlink-satellites