One-way satellite internet system
In a one-way satellite system, which is also known as a hybrid system, the information downloads rapidly to your computer via the satellite. However, information travels up to the Internet via your standard phone line. This works very well if you primarily use the Internet for downloading Web pages.
If you want access, at home or the office, in an area where other high speed services, such as DSL or cable, are not available.
Ref:
http://www.speedanywhere.com/higspeedsati.html
Two-ways satellite internet system
These two way satellite services employ bi-directional receive/transmit satellite links, connecting remotely located subscribers directly to a terrestrial teleport facility. The teleport routes the connection further to the Public IP space or a privately owned network.
The Federal Communications Commission (FCC) states that only licensed professionals can install any two-way satellite Internet access system in USA.
Asia & CIS Satellite Internet Plans
http://www.groundcontrol.com/Asia_Satellite_Internet.htm
