A videoconferencing system couples to a network for providing
videoconferencing services to a user. The videoconferencing session is
controlled and initiated by a user in a manner consistent with
establishing a conventional audio-only session. In one embodiment, an
independently operable voice-only telephone handset couples to an audio
and video communication device. The videoconferencing session is
established by taking the telephone handset to an off-hook status and
entering a dialed phone number sequence. The audio and video
communication device retrieves a network address corresponding to the
dialed phone number sequence and initiates a call sequence corresponding
to the retrieved network address until the telephone handset goes into an
on-hook status. The audio and video communication device further includes
video interfaces for presenting the video aspects to the user.