VSAT stands for Very Small Aperture Terminal. It can be used in a variety of voice and data applications. Hughes Network Systems of Germantown, is one of the biggest providers of VSAT equipment and services. To get an overall view of the company, visit their website at http://www.hns.com. To find out more about their products and services, look up http://www.hns.com/5PRODSERV/prodMain.html. The main points to notice are the types of services supported by this technology, the data rates that can be achieved, and ancillary technologies used with it (such as ADPCM).