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ThebasicprincipleofInternettelephonyistotransmitvoicecommunicationovertheinternetusingatechnologycalledVoiceoverInternetProtocol(VoIP).Insteadofusingtraditionaltelephonelines,VoIPconvertsthevoicesignalintodigitaldatapacketsthataretransmittedovertheinternettotherecipient.WhenacallismadeusingInternettelephony,thevoicesignalisfirstconvertedintodigitaldatabytheVoIPsoftware.Thisdataisthenbrokendownintopacketsandsentovertheinternettotherecipient'sdevice.Atthereceivingend,thedigitaldatapacketsarereassembledandconvertedbackintoavoicesignalthatcanbeheardbytherecipient.OneofthekeyadvantagesofInternettelephonyisthatitisoftencheaperthantraditionalphoneservices,asitbypassestheneedforexpensivephonelines.Additionally,Internettelephonyallowsformoreflexibilityandfeatures,suchasvideocallingandconferencecalling,thatarenotalwaysavailablewithtraditionalphoneservices.Inconclusion,thebasicprincipleofInternettelephonyistoconvertvoicesignalsintodigitaldatapacketsandtransmitthemovertheinternet,providingacost-effectiveandflexiblealternativetotraditionalphoneservices.