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ThebasicprincipleofanetworktelephoneistotransmitvoicecommunicationovertheinternetusingVoiceoverInternetProtocol(VoIP)technology.Insteadofusingtraditionalphonelines,networktelephonesconvertsoundintodigitaldatapacketsthatarethentransmittedovertheinternettotherecipient.Whenacallismadeusinganetworktelephone,thevoicesignaliscapturedbyamicrophoneandconvertedintodigitaldata.Thisdataisthencompressedanddividedintopacketsthataresentovertheinternettotherecipient'snetworktelephone.Therecipient'sdevicereceivesthepackets,decompressesthedata,andconvertsitbackintoanaudiblevoicesignal.Oneofthekeyadvantagesofnetworktelephonesisthattheycantransmitvoicecommunicationoverlongdistancesatalowercostcomparedtotraditionalphonelines.Additionally,networktelephonesofferfeaturessuchasvideocalling,conferencecalling,andvoicemailthatenhancecommunicationcapabilities.Inconclusion,thebasicprincipleofanetworktelephoneistouseVoIPtechnologytoconvertvoicesignalsintodigitaldatapacketsthataretransmittedovertheinternetforcommunicationpurposes.