I wouldn’t touch an action trailer. I know a few people that have had issues with the trailers from that place. Service department I hear isn’t the best either.  They’re cheap pricing lures people in. Spend a little extra and get a Beckner. 

I have a 7x14’ enclosed Beckner. Awesome trailers and definitely solid builds! Good pricing too

I think for emergency use I would either use the satellite service on an iphone or the inreach.      Dedicated Sat phones are way too expensive unless you are working somewhere totally out of service range with no wifi.      My buddy has a cabin north of Red Lake with zero cell service and he kept a Sat phone there for emergency but now says the Iphone works fine now.   

So, if this is a "phone" thing through Globalstar (purty sure that T-mobile is through Starlink) then - is this a service that you buy from Globalstar directly?   Does Globalstar have a decent reputation for coverage these days? When I left Globalstar, they were FAR from what they were in 2000.   .