组装黑珍珠无绳电话机,因使用的元器件筛选老化不严格,一些功能会出现时好时坏的现象,较常见的是不论市话还是台机呼叫手机,手机均会出现不能振铃的故障。检修时,只需将手机功能开关拨至待机状态,按下主机呼叫键, The assembly of black pearl cordless phones, due to the aging of the components used in screening is not strict, some of the features will appear when the phenomenon of good times and bad, the more common is that regardless of local calls or machine calls mobile phones, mobile phones will appear can not ring the fault. Overhaul, simply switch the phone function switch to standby, press the host call button,