这里介绍的是一种利用载波原理进行同线电话(甲、乙机)互呼的转移呼叫器,其工作频率是35—45KHz的等幅波。 当甲、乙两话机同线并机使用时,只需在甲、乙两机处各并入一只此装置。当有电话打来时,若甲机先摘机,但电话是找乙机的,甲机的受话人不用去喊乙机接电话,而只需按下此呼叫装置的开关。这时,甲、乙两处都会昕到音频叫声。甲机处的叫声起监视互呼装置工作是否正常的作用;乙 Introduced here is a carrier using the principle of the same phone (A, B) mutual paging call transfer, the operating frequency is 35-45KHz amplitude wave. When A, B two phones with the same line and parallel use, just in the A, B two machines at the merger of a device. When there is a call, if a machine first off machine, but the phone is to find the B machine, a machine’s receiver did not go to call the B machine to answer the phone, but simply press the call device switch. At this time, A, B will be Xin to audio calls. A machine at the office of the sound of each device to monitor whether the normal work; B