Satellite telephony for fixed and mobile applications

The author focuses on the use of satellite telephony for commercial fixed and mobile applications. Currently users can choose between Inmarsat, American Mobile, Iridium and VSAT services. Globalstar, ICO, Thuraya and ACeS should be available within a few years. Each service offers distinct technical capabilities allowing tailored solutions based on individual requirements. The choice of satellite telephony service and equipment depends primarily on the cost and capabilities required. Equipment costs range from $1,000-$40,000. with airtime ranging from $1.19-$6.75 per minute. While all the satellite systems provide basic voice services, they differ dramatically in data related features. Through a system comparison, architecture, coverage areas, features, benefits and drawbacks an educated choice can be made. Commercial satellite telephony usage occurs in industries such as shipping, fishing, yachting, energy, mining and construction. Remote site usage where landline infrastructure is flawed or nonexistent is growing as costs of ownership and operation shrink.