Cynthia is EASY. If Charles wants to speak with Wayne, Charles says to his computer, “Cynthia, call Wayne”, and Wayne’s Cynthia (the synthetic voice) speaks to him saying, “Charles is calling”. If Wayne says, “Yes, Cynthia,” then they are connected and can speak to each other. When they're finished, either one can say “Cynthia, disconnect”. That’s all there is to it!

Cynthia also features room monitoring, simultaneous conferences among multiple users, and voice paging. Communication is through existing LAN connections and there is no limit to the number of computers which can be connected or to the number of simultaneous conversations. A mouse-driven GUI is also available for users who prefer it.