No computer is need. Other VoIP services often require a computer but theirs is unique in the fact that all setup and use can be done quickly and easily without the need for a computer at any point.  Again, all you need is a high speed internet connection, a regular telephone, and the Vonage Box. You will need to use a computer to access your account online if you want to make any changes to your plan over the web. All of these changes can also be made by calling their customer support number too.