Credit: Joe Maring / Android AuthorityT Satellite is now officially available nationwide, even for those without T-Mobile service, but signing up requires a phone call or an in-person visit.I decided to try signing up, and my experience was overall smooth and professional, though others have reported long waits or uninformed reps.I waited around an hour or so, though half this time was due to my own error.Recently, T Satellite officially exited beta and launched nationwide for both existing T-Mobile customers and those on other networks who want to sign up for satellite service only. As our de facto phone service expert, I immediately decided to check it out.While I had skipped the beta since a colleague already covered it, I wanted to see what it was like now that it was officially ready for prime time. Unfortunately, my first disappointment came when I realized the only way to sign up was to either go into a T-Mobile store or call customer service.