EntityQ1140664· pop 21· linked from 371 articlesIP Multimedia SubsystemSign in to savearchitectural framework of telecommunicationsConnectionsH.248EntitySystem Architecture EvolutionEntity3GEntityGeneral Packet Radio ServiceEntityLong Term EvolutionEntityUniversal Mobile Telecommunications SystemEntitySession Initiation ProtocolEntitypublic switched telephone networkEntitypulse-code modulationEntity3GPPEntityVoLTEEntityUnstructured Supplementary Service DataEntity3rd Generation Partnership Project 2Entitymedia gatewayEntitysession border controllerEntitymobile phoneEntityInternational Standard Book NumberEntitytelecommunicationsEntityIP addressEntitydigital object identifierEntityCategories3GPP standardsAudio network protocolsIMS servicesLTE (telecommunication)MultimediaNetwork architectureTelecommunicationsTelecommunications infrastructureVideotelephonyVoice over IP