| 摘要 |
PURPOSE:To automatically set a communication line between a caller and a called party, by registering the telephone number of the caller in a callout response control exchanger and retrieving the telephone number of the caller from a called number transmitted from the called party. CONSTITUTION:A callout response controlling exchanger 1 is connected to subscriber exchangers 2 and 7 and an antenna 6 via a relay exchangers 4 and 9 and a radio callout controlling station 5. When the caller dials an instruction code and a callout number with a telephone set 3, a controller 1b stores the caller number to a callout registration file 1e corresponding to the callout number and calls out a pocket bell 14 via the controlling station 5. When the callout party responds with a telephone set 8, the controller 1b retrieves the file 1e, reads out the caller number corresponding to the callout number and calls out the telephone set 3 to communicate with the telephone set 8. |
