Most Intelsat General customers pay for satellite usage under contracts that provide a specific amount of transponder capacity over a certain period of time. But customers using mobile satellite services through devices like satellite telephones often are billed based on actual airtime. To better serve these customers, Intelsat General has switched to a specialized airtime billing system called SATbill that is widely used throughout the mobile satellite services industry.
SATbill, developed by Symbiosys Business Solutions of Cheshire, England, streamlines the billing system for customers using Globalstar, Thuraya, or other mobile satellite equipment connected to the Intelsat General network. The system can bill for all call types as well as for value-added services. The system also makes it easy to add new services or modify existing ones.
See more at: http://www.intelsatgeneral.com/case-studies/new-billing-system-to-better-serve-mobile-customers/