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Specialnetworktelephonereferstoatypeoftelephoneservicethatutilizestheinternetoraprivatenetworktomakecallsinsteadoftraditionaltelephonelines.Itallowsuserstomakecallsusingtheircomputer,tablet,orsmartphone,aslongastheyhaveaninternetconnection.SpecialnetworktelephoneisalsoknownasVoiceoverInternetProtocol(VoIP)service.Withthisservice,userscanmakecallstoanyonearoundtheworldatamuchlowercostcomparedtotraditionalphoneservices.Itisespeciallypopularamongbusinessesandindividualswhomakefrequentinternationalcalls.Tousespecialnetworktelephone,usersneedtodownloadaVoIPapplicationontheirdeviceandcreateanaccount.Theycanthenmakecallsusingtheappbyenteringtherecipient'sphonenumberorselectingacontactfromtheiraddressbook.Overall,specialnetworktelephoneisaconvenientandcost-effectivewaytomakecalls,especiallyforthosewhoneedtomakeinternationalcallsfrequently.Ithasrevolutionizedthewaywecommunicateandhasbecomeanessentialtoolintoday'sdigitalworld.