Computer-less Skype

I have already confessed to confusion about being able to make Skype out calls from my USB Skype phone that connects me with other users "real" phones at a fraction of the cost form BT yet the signal is still carried on the same pair of copper wires into my house and through the same local exchange.

This new Skype phone where the base station connects you the local network in your home and you don't even need a PC doesn't help reduce my confusion.

It's probably something to do with business models ......