Customers have the option of using the phone in satellite or cellular mode.
They can use it on land or 200 miles and more offshore. They can use a maritime or car kit to increase the phone's utility. Globalstar customers in the U.S. use Qualcomm's Globalstar tri-mode phone, which functions as an analog or digital cellular phone in addition to working in satellite mode. As the exclusive Globalstar service provider in the United States and the Caribbean, Globalstar USA is responsible for marketing, selling and distributing mobile satellite communication service, including billing and customer care operations, as well as building and operating the United States and Caribbean ground stations, or 'gateways,' which switch calls to and from the satellite to the land-based public switched telephone network. Vodafone Group Plc. is the world's largest leading wireless communications company, based in the United Kingdom.