| 摘要 |
PURPOSE:To attain effective utilization of a voice data by utilizing a telephone line, offering the information service from an information center storing lots of information to a subscriber and relieving the charge of individuals. CONSTITUTION:An information service center 1 consists of a voice transmission section 5, a voice data storage section 6, a line control section 2, an incoming call detecting section 3, a DTMF decoder section 4, a logical control section 7 and a recording section 8, is connected to a line network 10 via a telephone line 9, lots of voice data are stored and the objective voice data is retrieved and transmitted by using a control signal in voice from a terminal device 11. Moreover, the terminal device 11 used by the user is provided with a line control section 12, a switch 13, a keyboard 14 and a speaker 15, connected to a line network 10 via a telephone line 16, the control signal in voice is generated and transmitted to the telephone line 16 and the voice signal is outputted from the speaker. |
