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Title: The Inner Workings Of the Satellite Phone System Word Count: 399 Summary: The different ways that communicati on between two people is achieved w ith a satellite phone system. Sate llite phones allow communication fr om anywhere in the world. Keywords: satellite phone, cell phone, telepho ne Article Body: In a lot of the very remote places around the world, satellite phones are becoming more and more popular. Since these phones do not require cabling, the need for communicatio n in these areas has been covered b y the use of these satellite phones . A lot of these remote areas just do not have the infa structure ava ilable to allow for a more traditio nal land line phone. Radio frequen cies could be considered as well bu t all the frequencies for radio are for the most part, already occupie d with other things. For communication, satellite phones use what is called low earth orbit ing satellites or LEO for short. T he main advantage to using these ty pes of satellites over other types such as geo stationary satellites, is that there is very little latenc y. Since low earth orbiting satell ites are quite a bit closer to the earth, there is less delay in commu nication. Each satellite phone system include s a number of LEO satellites usuall y called a constellation. The use of many satellites makes sure that there is always a satellite visible to the phone so that calls can be made or received whenever they are needed. This ensure that there are never any missed calls or calls th at get go through to the person tha t you are calling. There are a number of different pro viders that offer these types of ph one services - Iridium and Globalst ar are just a couple and there are a number more. Each of these compa nies use various technologies to ge t the service done but in the end, they are mainly all the same. They all provide the satellite communic ation service. A few of these companies use a mult iple access method of time division to allow and increased number of c alls. This includes connections th at are satellite to satellite and t he phones work directly with these satellites. There are also digital technologies that are used to mana ge the traffic of calls and sometim es this is called, code division mu ltiple access. When division multiple access is us ed, the satellites are used to forw ard the incoming calls directly to the telephone gateways that exist o n the earth. This way, the call ev entually goes through the tradtiona l land telephone network. With the different ways this satell ite phone technology work, the end result does not change. The basic thing is that in the end, you get t hrough to who ever you need to talk to!
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