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ThesoftwarethatblocksinternetcallsiscalledaVoIPblocker.VoIPstandsforVoiceoverInternetProtocol,whichallowsuserstomakephonecallsovertheinternet.However,somepeoplemayreceiveunwantedcallsorspamcallsthroughthistechnology.Topreventthesecalls,userscaninstallaVoIPblockerontheirdevices.AVoIPblockerworksbyfilteringoutunwantedcallsbasedonspecificcriteria,suchascallerIDorkeywords.Itcanalsoblockcallsfromspecificnumbersorblockallcallsexceptforthoseonauser'swhitelist.ByusingaVoIPblocker,userscaneffectivelystopannoyingorharassingcallsfromreachingtheirdevices.Inadditiontoblockingunwantedcalls,aVoIPblockercanalsohelpprotectusers'privacyandsecuritybypreventingmaliciouscallsorphishingattempts.Overall,aVoIPblockerisausefultoolforanyonelookingtohavemorecontrolovertheirinternetcallsandavoidunwantedinterruptions.