EntityQ206658· pop 14· linked from 51 articlespulse dialingSign in to savepulse, toneConnectionswireless communicationEntityInformation AgeEntitysignalingEntityInternetEntityThomas EdisonEntityIndianaEntityNikola TeslaEntitytelephoneEntitymobile phoneEntitymass mediaEntityTim Berners-LeeEntityAlexander Graham BellEntitysmartphoneEntitytelecommunicationsEntityGuglielmo MarconiEntitycomputer networkEntitysemiconductorEntityWayback MachineEntitysocial mediaEntityRobert HookeEntityCategoriesObsolete technologiesTelephony signals