Globalstar's technology over everyone else. They've just been crude bent pipes up in the sky. They still are. C-3 is just a bunch of new radio repeaters.

Globalstar's original network was just CDMA over the bent pipe satellite link, their second-gen Duplex network (sold as Sat-Fi 2) was an attempt to go WCDMA, then Apple dangled a lot of cash at them to build out and drop the entire Sat-Fi 2 product, the entire WCDMA core, and go roll Apple's new toys out for them. I'm assuming C3 is going to be heavily LTE-based if it isn't already at this point.

(I had a Sat-Fi 2 device and it was an interesting and short-lived experience. I was also there for the weird interim 201x satellite failure era - I remember having to pull up the Optimal Satellite Availability Tool to go see exactly how many long ~2-10 minute windows I could make phone calls in with a GSP-1600.)

((Double-fun-fact: The GSP-1600 is still actively used on Globalstar today, and it's one of the only tri-mode phones that existed of the era. It was satellite via GSTAR, then had CDMA for local calling and AMPS for the sticks. I had my GSP-1600 activated on a Verizon MVNO for local calls, which was a blast to use.))