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.

Another differentiator is that Skype is free and simple to set up, and it costs us virtually nothing for a new user to join the Skype network, which is why we can offer the service for free.

We have just started, and if you compare the number of people using Skype to the number using a telephone network around the world, we're still just starting.

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

You have 1 billion people using the Internet with 200 million of those now using broadband internet connections, so the Internet has become a powerful network. It can carry calls.

I try not to dwell on big mistakes but to move on when I make a mistake. I make mistakes most of the times and that's part of the risk profile being an entrepreneur. I guess one big mistake I did was not to start my own company earlier. I spent nine years working for others before starting Kazaa in 2000.

You shouldn't be afraid of failure - when something fails, you think, 'What did I learn from that experience? I can do better next time.' Then kill that project and move on to the next. Don't get disappointed.