Satellite constellations: Earth caught in the net

We have fully entered the era of information globalization and need global communication systems. What is that?
Handle any type of information - text, image, sound, video - very quickly and from anywhere in the world. To do this, the solution that major telecommunications companies have found are satellite constellations, satellite networks. There are several systems and projects, but the most important for the average user are the Teledesic, Iridium and Globalstar systems.