"There are two camps in the VoIP world. There are the traditionalists, and there are the disrupters. The traditionalists are fairly classical in their approach. They sell you traditional-looking, -feeling phone service with the difference that the call goes over your own broadband connection and setup. In that camp you’d put Vonage and Packet8 and AT&T’s CallVantage. So maybe you’d save a few dollars over your traditional phone service, but for the most part it operates the same way.

"The disrupters are companies like Skype and SIPphone, and we believe that all calls are going to zero. Meaning that, if I had a service where you’d have to pay for every email that you sent, and I was going to charge you more if the person you were sending an email to lived farther away, you’d think I was crazy. But that’s how we still think of phone calls today, even though they’re just bits of data traveling along the pipes."