Forbes article…
Most voice-over-Internet Protocol (VoIP) systems install on a home computer and require a special modem. They can’t be easily set up on multiple machines, and you certainly wouldn’t be able to access your phone account on a public terminal.
Atlanta-based phone company i2 Telecom (otc: ITUI – news – people ) has changed that with the VoiceStick, a software-based VoIP phone that is loaded on a flash-based USB thumb drive, the same bit of hardware that’s become popular for transferring files between PCs.