國(guo)產的:國(guo)威、通利、中聯、申(shen)甌 80元(yuan)—160元(yuan)/線(xian)之間 國(guo)產的:華為(wei)、中興 500-800元(yuan)/線(xian)之間

用在什么(me)環境下(xia)？例(li)如(ru)酒店，企業，還是學校等(deng)(deng)等(deng)(deng)，需要接數(shu)字外線(xian)還是模擬外線(xian)？國產(chan)交換機中(zhong)聯的dk系列(lie)和jsy2000系列(lie)，申甌(ou)機器，進口交換機松下(xia)，nec這兩個價(jia)格

1、工作原理不同程控交換機還要對主叫(jiao)電(dian)(dian)話機送(song)來的(de)模擬聲音(yin)信(xin)號(hao)(hao)電(dian)(dian)流轉換成(cheng)數字信(xin)號(hao)(hao)，以數字信(xin)號(hao)(hao)進(jin)行交換、接續，并(bing)將數字信(xin)號(hao)(hao)還原成(cheng)模擬信(xin)號(hao)(hao)送(song)到被(bei)叫(jiao)電(dian)(dian)話機。普(pu)

所謂程控4006電話電(dian)(dian)(dian)話(hua)是指接(jie)入程控(kong)(kong)電(dian)(dian)(dian)話(hua)交換(huan)機(ji)的電(dian)(dian)(dian)話(hua)。程控(kong)(kong)電(dian)(dian)(dian)話(hua)交換(huan)機(ji)是利用電(dian)(dian)(dian)子計(ji)算機(ji)來(lai)控(kong)(kong)制的交換(huan)機(ji)，它以預先編好的程序來(lai)控(kong)(kong)制交換(huan)機(ji)的接(jie)續(xu)動(dong)作。在程控(kong)(kong)電(dian)(dian)(dian)話(hua)出(chu)現以前(qian)，

看(kan)你(ni)的要(yao)(yao)求和預算了，要(yao)(yao)求高就(jiu)采用(yong)進口的，要(yao)(yao)求低就(jiu)采用(yong)國(guo)(guo)產的。如(ru)果你(ni)要(yao)(yao)購買電(dian)話交換機(ji)，你(ni)首(shou)先要(yao)(yao)知道自(zi)己(ji)需要(yao)(yao)幾(ji)條外(wai)線，幾(ji)個分機(ji)。一般國(guo)(guo)產的，推薦國(guo)(guo)威交換機(ji)