| 摘要 |
PURPOSE:To provide private video speech by a moving image and a large sized monitor by constituting of plural terminal equipment, a center device which controls the plural terminal equipment. a common audio visual line and a digital private branch exchange. CONSTITUTION:A certain person calls a center side by the digital telephone set 1c of the terminal equipment A1. At this time, the video of the certain person photographed by a camera 1a is transmitted from a modulation/ transmission part 1b, and sent to the center device 4 via the common audio visual line 5. An operator awaiting in a center receives the call of a telephone set 4a. The call is displayed on an extension number display part 4c. The operator confirms a reception channel in accordance with a displayed extension number, and selects the same channel. A channel selection reception/ demodulation part 4d displays the photographed video of the camera 1a on a display part 1f by such channel selection. While, the video of the operator by a camera 4g is transmitted, and sent to the terminal A1, and a detecting part 1i detects it. A control part 1h switches a video to a center side camera video. |
