The telephone is a 100-year-old technology. It's time for a change. Charging for phone calls is something you did last century.

It is very similar to companies like Google and other internet companies. When you go and search on Google you don't pay for that. But sometimes you click on an advert and Google makes money on that.

If you could utilize the resources of the end users' computers, you could do things much more efficiently.

Then people started using it more and more and it became the most downloaded software on the internet.

It's extremely hard to build a company with a product that everyone loves, is free and has no business model, and then to innovate a business model. I did that with Kazaa, had half a billion downloads but that wasn't a sustainable business.

If you can use a Web browser, you can use Skype.

Some Internet operators are concerned that video services such as Netflix and YouTube consume lots of the bandwidth on the network. While there is some truth to this, my guess is that the operators wished they could provide the same kind of services with the same success as Netflix and YouTube.