A teleconferencing system for conducting a teleconference among a plurality of participants. The system has a plurality of video display devices, each having associated participant video capture capabilities and participant audio capture and reproduction capabilities. At least one communication path is provided for transmitting signals representing participant audio and video. A graphical rolodex can be displayed on a participant's video display device and includes a scrollable listing of entries of video-enabled potential participants. Also included is a quick dial list, listing icons representing video-enabled potential participants copied from the graphical rolodex. The system is configured to allow an initiating participant to initiate collaboration by selecting at least one participant listed in at least one of the graphical rolodex and quick dial list, and automatically establish one of a plurality of communication types, with a selected participant, upon a communication type being selected or by default when the participant is selected.