Gphone is a VoIP based software application with chat, voice and file transfer functions. Gphone's high quality communication is a result of acheiving nearly ZERO delay in voice transfer. This quality is un-heard in typical VoIP client software. Gphone has a nice, compact interface that supports skins and offers quick access to all functions. You can also use Gphone to text-chat with the other person (in case you don't have a microphone or slow connection) as well as tranfer files between you.