| 摘要 |
PURPOSE:To transmit a message by a telephone at transmission side to a person located near a facsimile receiver when a telephone reservation signal is transmitted, by directly amplifying it with a loud speaker. CONSTITUTION:A telephone reservation signal is detected at a detector 6, a controller 7 operates an amplifier 8, and the operation of a buzzer 10 is made off, so that the telephone reservation signal can not be inputted to the buzzer 10. An audio signal of a caller fed through a line succeeding to the telephone reservation signal is detected at a pickup coil as a leakage magnetic flux from a hybrid coil 5 and amplified at a speaker 11 through the amplifier 8. |
