EntityQ1978634· pop 13· linked from 34 articlesIP PBXSign in to savetelephone system that operates on the principles of Internet Protocol technologyConnectionswireless communicationEntityInformation AgeEntityInternetEntityThomas EdisonEntityarchitectureEntityNikola TeslaEntitytelephoneEntitycommunicationEntitymass mediaEntityInternational Standard Book NumberEntityTim Berners-LeeEntityAlexander Graham BellEntitysmartphoneEntitytelecommunicationsEntityGuglielmo MarconiEntitycomputer networkEntitysemiconductorEntitysocial mediaEntitydataEntityvideo recordingEntityCategoriesOffice equipmentTelecommunications equipmentVoIP software