發布者：新航通 　 發布時間： 2014-12-12 17:01　瀏覽次數：

相(xiang)信還(huan)(huan)有不少的人對(dui)網絡電(dian)(dian)話(hua)還(huan)(huan)是心存(cun)疑慮的吧(ba)，“網絡電(dian)(dian)話(hua)服務(wu)究竟(jing)是什么？是不是又(you)是騙人的？”大家對(dui)待新事物的過(guo)于(yu)謹慎，導致了現今網絡電(dian)(dian)話(hua)普(pu)及率(lv)的地下(xia)，下(xia)面我(wo)就為(wei)大家簡(jian)單的介紹一下(xia)網絡電(dian)(dian)話(hua)。

  網(wang)絡電話是(shi)什么

  VOIP電話(hua)也被(bei)普遍稱為(wei)網絡電話(hua)，就是(shi)Voice over Internet Protocol，即先對語(yu)音信(xin)號進行編碼數字化和(he)壓縮(suo)處理，然(ran)后(hou)轉換為(wei)IP數據包在IP網絡上傳(chuan)輸，從而(er)完成語(yu)音通話(hua)的業務。COCO通訊(xun)就是(shi)采(cai)用這(zhe)種技術，這(zhe)也是(shi)官方的概念解釋。

  VOIP的概念

  VOIP網(wang)(wang)(wang)絡(luo)電(dian)話(hua)是一(yi)種利用Internet技術或(huo)網(wang)(wang)(wang)絡(luo)進(jin)行(xing)語(yu)音通(tong)(tong)(tong)信的(de)新業務(wu)。從通(tong)(tong)(tong)訊市場來看(kan)，目(mu)前有(you)兩種方式比較流行(xing)：一(yi)種是利用Internet網(wang)(wang)(wang)絡(luo) 進(jin)行(xing)的(de)語(yu)音通(tong)(tong)(tong)信，就是我們所說的(de)網(wang)(wang)(wang)絡(luo)電(dian)話(hua)；另一(yi)種是利用IP技術，通(tong)(tong)(tong)過與運營商之(zhi)間點(dian)對點(dian)聯結進(jin)行(xing)的(de)語(yu)音通(tong)(tong)(tong)信，有(you)人稱(cheng)之(zhi)為經濟電(dian)話(hua)或(huo)廉價(jia)電(dian)話(hua)。兩者(zhe)的(de)區別 在(zai)(zai)于網(wang)(wang)(wang)絡(luo)電(dian)話(hua)有(you)投資費用省，通(tong)(tong)(tong)話(hua)價(jia)格低的(de)優(you)勢，但也(ye)存(cun)在(zai)(zai)著服務(wu)等(deng)級不清楚和(he)通(tong)(tong)(tong)話(hua)質(zhi)(zhi)量(liang)不能保(bao)證(zheng)的(de)缺陷。現(xian)在(zai)(zai)，網(wang)(wang)(wang)絡(luo)電(dian)話(hua)多被計(ji)算機公(gong)司和(he)數據網(wang)(wang)(wang)絡(luo)服務(wu)公(gong)司所采 用。而經濟電(dian)話(hua)呢，相對于網(wang)(wang)(wang)絡(luo)電(dian)話(hua)而言，投資較大，價(jia)格較高，由于是專門用于電(dian)話(hua)通(tong)(tong)(tong)信，有(you)一(yi)定的(de)服務(wu)等(deng)級，通(tong)(tong)(tong)話(hua)質(zhi)(zhi)量(liang)也(ye)可以得到保(bao)證(zheng)，。這就是網(wang)(wang)(wang)絡(luo)電(dian)話(hua)和(he)傳(chuan)統 電(dian)話(hua)的(de)區別之(zhi)處。

  傳(chuan)統(tong)電(dian)(dian)話(hua)(hua)(hua)(hua)(hua)用(yong)(yong)(yong)電(dian)(dian)話(hua)(hua)(hua)(hua)(hua)網作為語(yu)(yu)(yu)音傳(chuan)輸的(de)(de)媒介(jie)，而(er)VOIP網絡(luo)電(dian)(dian)話(hua)(hua)(hua)(hua)(hua)則是(shi)(shi)將語(yu)(yu)(yu)音信(xin)號在公眾電(dian)(dian)話(hua)(hua)(hua)(hua)(hua)網和Internet之間進行轉(zhuan)(zhuan)換(huan)，壓(ya)縮封裝完語(yu)(yu)(yu)音信(xin)號后再轉(zhuan)(zhuan)換(huan)成IP 包，同時(shi)，IP技(ji)術(shu)(shu)(shu)可讓多個用(yong)(yong)(yong)戶(hu)同時(shi)享有同一(yi)(yi)帶(dai)寬資(zi)源，改(gai)變了(le)傳(chuan)統(tong)電(dian)(dian)話(hua)(hua)(hua)(hua)(hua)由單(dan)個用(yong)(yong)(yong)戶(hu)獨(du)占(zhan)一(yi)(yi)個信(xin)道的(de)(de)方(fang)式，省(sheng)去了(le)用(yong)(yong)(yong)戶(hu)單(dan)獨(du)使用(yong)(yong)(yong)信(xin)道的(de)(de)資(zi)費(fei)(fei)。再者，基于技(ji)術(shu)(shu)(shu)的(de)(de)進 步(bu)和市場的(de)(de)推動，語(yu)(yu)(yu)音轉(zhuan)(zhuan)化IP包的(de)(de)技(ji)術(shu)(shu)(shu)已變得(de)更(geng)為實用(yong)(yong)(yong)和便宜。另(ling)外VOIP網絡(luo)電(dian)(dian)話(hua)(hua)(hua)(hua)(hua)的(de)(de)核(he)心元件之一(yi)(yi)數字(zi)信(xin)號處理器的(de)(de)價格在下(xia)降，硬(ying)件的(de)(de)下(xia)降使電(dian)(dian)話(hua)(hua)(hua)(hua)(hua)費(fei)(fei)用(yong)(yong)(yong)大(da)(da)大(da)(da) 降低，特別是(shi)(shi)在長途電(dian)(dian)話(hua)(hua)(hua)(hua)(hua)通信(xin)費(fei)(fei)用(yong)(yong)(yong)上尤為明顯(xian)，這也是(shi)(shi)VOIP網絡(luo)電(dian)(dian)話(hua)(hua)(hua)(hua)(hua)迅速發展的(de)(de)重要原因之一(yi)(yi)。

  現(xian)在(zai)網(wang)絡(luo)電(dian)話(hua)的技術已經發展到(dao)相對成熟的階段(duan)，具備穿透防火(huo)墻(qiang)、通(tong)話(hua)質量清(qing)晰、支持多(duo)種語言等功能(neng)。用(yong)戶只要(yao)在(zai)手(shou)機(ji)上下載安(an)裝mync通(tong)訊，包月套餐(can)不需(xu)要(yao)額外費(fei)用(yong)就可以隨心所欲撥打(da)全國各地的固定(ding)電(dian)話(hua)或手(shou)機(ji)，方便又(you)實惠。