電話機故障維修
電(dian)(dian)話機(ji)常見(jian)故障(zhang)有電(dian)(dian)源(yuan)指示燈不(bu)亮、單分(fen)機(ji)話機(ji)提機(ji)無音、分(fen)機(ji)話機(ji)提機(ji)噪音、分(fen)機(ji)不(bu)振鈴，可以(yi)先檢(jian)查(cha)故障(zhang)原因，然后檢(jian)查(cha)電(dian)(dian)源(yuan)和線(xian)路故障(zhang)，如果(guo)無法維修(xiu)可以(yi)請專業人士上門維修(xiu)。
電話機原理
電(dian)(dian)話通(tong)信是通(tong)過聲(sheng)能(neng)與電(dian)(dian)能(neng)相(xiang)互轉換(huan)、并利用“電(dian)(dian)”這個媒介(jie)來傳輸語(yu)言的(de)一種通(tong)信技術。打電(dian)(dian)話時聲(sheng)波作用于(yu)送(song)話器上(shang)產生電(dian)(dian)流，電(dian)(dian)流沿(yan)著線(xian)路傳達(da)到對方電(dian)(dian)話機，再將電(dian)(dian)流轉化為聲(sheng)波就完(wan)成(cheng)了遠程通(tong)話。
電話機怎么安裝
首(shou)先(xian)要(yao)選(xuan)(xuan)好分(fen)線(xian)(xian)(xian)(xian)盒，通(tong)常(chang)選(xuan)(xuan)擇(ze)最近的分(fen)線(xian)(xian)(xian)(xian)盒，然后(hou)選(xuan)(xuan)擇(ze)一(yi)(yi)根(gen)配號(hao)線(xian)(xian)(xian)(xian)，在分(fen)線(xian)(xian)(xian)(xian)盒的外面牽一(yi)(yi)根(gen)線(xian)(xian)(xian)(xian)到(dao)家里面，將線(xian)(xian)(xian)(xian)接好電話(hua)，撥111確定端口(kou)號(hao)，確定端口(kou)號(hao)是否正確，在外線(xian)(xian)(xian)(xian)找到(dao)一(yi)(yi)個端口(kou)，用專(zhuan)門的跳線(xian)(xian)(xian)(xian)從內線(xian)(xian)(xian)(xian)的一(yi)(yi)個端口(kou)接到(dao)外線(xian)(xian)(xian)(xian)那(nei)邊的端口(kou)。最后(hou)一(yi)(yi)步就是將保險單元插(cha)到(dao)外線(xian)(xian)(xian)(xian)的端口(kou)。
如何選購電話機
首先要選用與當地交換機制式相適應的電話機，然后要考慮電話機的功能，比如免提揚聲、液晶顯示、錄音應答等功能；購買前還要檢查電話機的外觀質量是否合格，聲音是否清晰無噪聲，聲調是否正常等。建議選擇正規品牌電話機，質量有保障。
步步高
金階
飛利浦
TCL
中諾
摩托羅拉
得力
