Digiphone is the conferencing software designed to work with VideoTalk hardware to form a complete Internet telephony package. Features unique to this system involve collaborative creation and sharing of video and graphic imaging applications. FreeTel from FreeTel Communications High-quality sound audio conferencing. Text chat and file-transfer. All connections are direct and an asynchronous mixer is used to allow all people able to speak at anytime.
Beta versions are free to download.
IRIS Phone IRIS Phone emulates a normal phone call without long-distance charges. It does offer live video exchange, but at 28.8 bps it is only 5 fps. Net Talk is a full commercial package of hardware and software creating a tightly controlled sound and audio communications system. It is mainly for music and sound engineering projects but it is included here because among all its other functions, the system provides full duplex audio-conferencing with a high degree of sound quality and control. PGPfone, which stands for Pretty Good Privacy Phone, is a software package that turns a computer into a secure telephone.