Introduction to VoIP, an Excellent Description of VoIP Technology

Voip technology is able to establish connections between a computer and a telephone or even two computers.

You can use VoIP on computer, on PDA, tablet, smartphone, IP phone, and even on a traditional PSTN phone after enabling it to use VoIP. So it basically supports everything with Internet connection and audio-video input and output.

Ozeki Phone System XE uses VoIP for communication, so it can be connected to anything that uses Internet connection and audio-video input and output.