1.无绳电话机与普通电话机两种振铃器的不同之处由于无绳电话机的手机和机座二者之间无手机绳联系,只是靠手机及机座中的两只双工无线电发射机所发的电波信号作联系,这就给无绳电话机的用户带来很大方便,即在一定距离内,手机可以脱机使用。同时,也对振铃器提出新的要求,即振铃器的发声器 1. The difference between two types of ringer cordless telephone and ordinary telephone cordless phone as the phone and the base between the two no phone cord, just by the phone and the base of two duplex radio transmitter Machine made by the radio signal to make contact, which gives the user cordless telephone great convenience, that is, within a certain distance, the phone can be used offline. At the same time, new requirements have also been placed on the ringer, namely the ringer’s sounder