| 摘要 |
PURPOSE:To allow a visitor visiting a house during absence to make conversation with a person leaving its house in an automobile without entering the house by providing an interphone conversation means outputting a voice signal received from a mobile station to the interphone set. CONSTITUTION:A visiter can use the interphone set 3 at the outside of a base H to send a call signal to the inside of the base H. The call signal is sent to a mobile station 4 of an automobile A as a visiter call code through an its own station 2 installed in the inside of the base. On the other hand, in receiving the visiter code by the mobile station 4, the reply code corresponding thereto is returned to the station 2. Then the voice signal sent from the mobile station 4 to the station 2 is sent to the interphone 3. Moreover, the voice signal inputted to the interphone 3 is sent from the station 2 to the mobile station 4. Thus, the visiter can make conversation with a person leaving its home by an automobile. |
