Haveyoueverreceivedaphonecallfromanunknownnumberandwonderedwhoitcouldbe?Withtheriseofinternetcallingservices,suchasSkype,WhatsApp,andFaceTime,itcanbedifficulttoidentifythepersoncallingyou.However,thereareafewwaystofigureoutwhoisontheotherendoftheline.OnewaytoknowwhoiscallingyouistocheckthecallerIDonyourphone.Ifthepersoniscallingfromaregisterednumber,theirnamemayappearonyourscreen.Anotheroptionistoanswerthecallandaskthepersonwhotheyare.Thismayseemstraightforward,butitcanbeaneffectivewaytoidentifythecaller.Ifyouarereceivingfrequentcallsfromanunknownnumber,youcanalsouseareversephonelookupservice.Theseservicesallowyoutoenterthephonenumberandfindoutthenameandlocationofthecaller.Whilenotalwaysfoolproof,reversephonelookupservicescanprovidevaluableinformation.Inconclusion,whileitmaybechallengingtoknowwhoiscallingyouthroughinternetphoneservices,therearewaystoidentifythecaller.ByusingcallerID,askingthepersondirectly,orusingareversephonelookupservice,youcandeterminewhoisontheotherendoftheline.