Correct. Globalstar is a "bent pipe analog repeater" network. They have ground gateway stations that provide connectivity from their satellites to the public switched telephone network and internet. In order for your handheld to work, you need a satellite in view and that satellite must have a ground gateway station in view. Iridium doesn't have that latter requirement. I won't be getting rid of my InReach Mini anytime soon.
On the other hand, that "bent pipe" nature is what allowed Globalstar to support a (presumably) completely new type of protocol and modulation over existing, decades-old satellites!
Apple has also been adding new ground stations as part of their agreement with Globalstar, which has, among other things, added coverage to Hawaii. I'm pretty sure they have much larger plans for this than just emergency texting.
