T-Mobile is currently in the process of connecting with some users of Android phones for testing the StarLink service for emergency communication. They had a cattle call registration in the recent past, and apparently got a huge turnout of volunteers for the trial. I signed up, but so far I have not heard of any iPhone users (I use a 16 Pro Max) being selected for the pilot program. The progress amongst users and hopefuls is a daily topic on Reddit-T-Mobile If you want to check the daily chatter.