in fig9 are explained in greater detail below the teleconferencing robot 100 includes the micro controller 28 which controls the attention getting mechanism 90 as well as various other teleconferencing robot components represented by block 99 the micro controller 28 also controls the vertical lifting and lowering mechanism 70 and mobile ground unit 80 when provided both of these units being optional now referring to fig1 the schematic layout of remote teleconferencing unit 120 is shown remote teleconferencing unit 120 u201c rtu 120 u201d includes a microphone 121 to pick up the voice of the remote conferee and send a rtu outgoing audio signal u201c rtuoas u201d to audio video data communications controller 128 u201c avdcc 128 u201d the avdcc 128 controls the transmission and reception of all of the various rtu signals to and from an equivalent communications controller avdcc 129 shown in fig9 located at the local group meeting site rtu 120 further includes a video camera 122 to capture an image of the remote conferee the video camera 122 sends an rtu outgoing video signal u201c rtuovs u201d to avdcc 128 amplified speaker 123 receives an rtu incoming audio signal u201c rtuias u201d from avdcc 128 the rtuias originates from the teleconferencing robot 100 shown in fig9 and typically consists of the voices of the local conferees at the group meeting site rtu 120 further includes a teleconferencing robot remote control system 119 which remotely controls the operation of the teleconferencing robot 100 of fig9 the teleconferencing robot remote control system 119 comprises a video monitor 124 an operations panel 125 a graphics overlay unit 126 and a main control unit 127 the remote conferee controls the teleconferencing robot 100 of fig9 by means of input at the operations panel 125 operations panel 125.