What is Cable?
Cable broadband uses a special network powered by TelstraClear to delivar high speed internet, phone and Digital TV services.

How fast is it?
DOCSIS 3.0 Cable technology has the ability to move data at speeds over 100Mb/s.

What other benefits are there?
In addition to its very high speed, Cable broadband has many benefits over analogue connections. Unlike dial-up connections that require you to "dial-in" to the Internet Service Provider every time you want to retrieve e-mail or access to the Internet, Cable internet connections are always on. That means no more logging on and off, no more busy signals and no more waiting for the connection to happen - it's always there!

Talk & surf on the same line at the same time!
Another major benefit is the ability to use the telephone at the same time you're accessing the Internet; no more missed called or interrupted browsing.

See How stuff works for more information- http://computer.howstuffworks.com/cable-modem.htm