接电话时,若是未等电话机铃声停止,就急忙拿起手机,久而久之,电话机受话器的灵敏度就会降低,杂音会增大,从而影响电话机的使用寿命。 这是因为当电话机振铃时,外线约有80V的振铃电压输入话机,此时若立即拿起手机,振铃电流就会通过耳机受话器,致使受话器中磁铁的磁性减弱,灵敏度降低,甚至会使受话器中的电极和炭精粉烧结成块,失去送话 When answering the phone, if the ringtone of the phone is not stopped, the phone is quickly picked up. In the course of time, the sensitivity of the phone receiver will be reduced and the noise will increase, which will affect the service life of the phone. This is because when the telephone ringing, the external about 80V ringing voltage input phone, then immediately pick up the phone, the ringing current will be through the earphone receiver, causing the magnet in the receiver weakens, the sensitivity decreases, or even Will make the receiver electrode and charcoal powder sintered into pieces, lost sending