| 摘要 |
PURPOSE:To attain the communication only with a caller desired by a receipient, by rejecting the request for offer of a call and infomration from a caller or placing the priority, when the number of the caller or the response information is not registrated at the recipient side. CONSTITUTION:When a message is requested from a subscriber side telephone set 1 via electronic exchanges 3 and 4, an electronic computer 8 prepares the response to a request message, after the response information is compared with the information registrated in a storage section 8a in the computer 8, and when the caller number is the registrated information request, the transmission of information or the service by voice response is started to the telephone set 1 or a telephone facsimile 2 via a facsimile control unit 9 or a voice response device 10. Further, the storage section 8a stores the response information to be responded and also the subscriber number desired for a call, collates the telephone number of the transmission terminal, allowing to protect the reception side so as to prevent the communication with the transmission terminal being not desired. |
