Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Voice_over_IP> ?p ?o }
- Voice_over_IP abstract "Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service.The term Internet telephony specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN). The steps and principles involved in originating VoIP telephone calls are similar to traditional digital telephony and involve signaling, channel setup, digitization of the analog voice signals, and encoding. Instead of being transmitted over a circuit-switched network, however, the digital information is packetized, and transmission occurs as IP packets over a packet-switched network. Such transmission entails careful considerations about resource management different from time-division multiplexing (TDM) networks.Early providers of voice-over-IP services offered business models and technical solutions that mirrored the architecture of the legacy telephone network. Second-generation providers, such as Skype, have built closed networks for private user bases, offering the benefit of free calls and convenience while potentially charging for access to other communication networks, such as the PSTN. This has limited the freedom of users to mix-and-match third-party hardware and software. Third-generation providers, such as Google Talk, have adopted the concept of federated VoIP—which is a departure from the architecture of the legacy networks. These solutions typically allow dynamic interconnection between users on any two domains on the Internet when a user wishes to place a call.VoIP systems employ session control and signaling protocols to control the signaling, set-up, and tear-down of calls. They transport audio streams over IP networks using special media delivery protocols that encode voice, audio, video with audio codecs, and video codecs as Digital audio by streaming media. Various codecs exist that optimize the media stream based on application requirements and network bandwidth; some implementations rely on narrowband and compressed speech, while others support high fidelity stereo codecs. Some popular codecs include μ-law and a-law versions of G.711, G.722, a popular open source voice codec known as iLBC, a codec that only uses 8 kbit/s each way called G.729, and many others.VoIP is available on many smartphones, personal computers, and on Internet access devices. Calls and SMS text messages may be sent over 3G/4G or Wi-Fi.".
- Voice_over_IP wikiPageExternalLink oman_and_voip.
- Voice_over_IP wikiPageID "75028".
- Voice_over_IP wikiPageLength "63740".
- Voice_over_IP wikiPageOutDegree "253".
- Voice_over_IP wikiPageRevisionID "708192031".
- Voice_over_IP wikiPageWikiLink 112_(emergency_telephone_number).
- Voice_over_IP wikiPageWikiLink 3G.
- Voice_over_IP wikiPageWikiLink 4G.
- Voice_over_IP wikiPageWikiLink 9-1-1.
- Voice_over_IP wikiPageWikiLink A-law_algorithm.
- Voice_over_IP wikiPageWikiLink ATM_Adaptation_Layer_5.
- Voice_over_IP wikiPageWikiLink Acronym.
- Voice_over_IP wikiPageWikiLink Analog_telephone_adapter.
- Voice_over_IP wikiPageWikiLink Assisted_GPS.
- Voice_over_IP wikiPageWikiLink Asterisk_(PBX).
- Voice_over_IP wikiPageWikiLink Asynchronous_Transfer_Mode.
- Voice_over_IP wikiPageWikiLink Audio_codec.
- Voice_over_IP wikiPageWikiLink Audio_over_IP.
- Voice_over_IP wikiPageWikiLink Authentication.
- Voice_over_IP wikiPageWikiLink Backhaul_(telecommunications).
- Voice_over_IP wikiPageWikiLink Business_telephone_system.
- Voice_over_IP wikiPageWikiLink Cable_modem.
- Voice_over_IP wikiPageWikiLink Call_shop.
- Voice_over_IP wikiPageWikiLink Caller_ID.
- Voice_over_IP wikiPageWikiLink Category:Audio_network_protocols.
- Voice_over_IP wikiPageWikiLink Category:Broadband.
- Voice_over_IP wikiPageWikiLink Category:Videotelephony.
- Voice_over_IP wikiPageWikiLink Category:Voice_over_IP.
- Voice_over_IP wikiPageWikiLink Cellular_network.
- Voice_over_IP wikiPageWikiLink Central_limit_theorem.
- Voice_over_IP wikiPageWikiLink Circuit_switching.
- Voice_over_IP wikiPageWikiLink Codec.
- Voice_over_IP wikiPageWikiLink Communications_Assistance_for_Law_Enforcement_Act.
- Voice_over_IP wikiPageWikiLink Communications_protocol.
- Voice_over_IP wikiPageWikiLink Comparison_of_VoIP_software.
- Voice_over_IP wikiPageWikiLink Comparison_of_audio_network_protocols.
- Voice_over_IP wikiPageWikiLink Data_buffer.
- Voice_over_IP wikiPageWikiLink Data_link_layer.
- Voice_over_IP wikiPageWikiLink Denial-of-service_attack.
- Voice_over_IP wikiPageWikiLink Dial_peer.
- Voice_over_IP wikiPageWikiLink Differentiated_services.
- Voice_over_IP wikiPageWikiLink Digital_audio.
- Voice_over_IP wikiPageWikiLink Digital_subscriber_line.
- Voice_over_IP wikiPageWikiLink Digium.
- Voice_over_IP wikiPageWikiLink Direct_inward_dial.
- Voice_over_IP wikiPageWikiLink Dropout_(communications).
- Voice_over_IP wikiPageWikiLink Dual-tone_multi-frequency_signaling.
- Voice_over_IP wikiPageWikiLink E.164.
- Voice_over_IP wikiPageWikiLink Email_address.
- Voice_over_IP wikiPageWikiLink Encryption.
- Voice_over_IP wikiPageWikiLink Enhanced_9-1-1.
- Voice_over_IP wikiPageWikiLink Ethernet.
- Voice_over_IP wikiPageWikiLink Ethernet_over_coax.
- Voice_over_IP wikiPageWikiLink Ethiopia.
- Voice_over_IP wikiPageWikiLink European_Union.
- Voice_over_IP wikiPageWikiLink Fax.
- Voice_over_IP wikiPageWikiLink Federal_Communications_Commission.
- Voice_over_IP wikiPageWikiLink Federated_VoIP.
- Voice_over_IP wikiPageWikiLink Firewall_(computing).
- Voice_over_IP wikiPageWikiLink Fountain_code.
- Voice_over_IP wikiPageWikiLink G.711.
- Voice_over_IP wikiPageWikiLink G.722.
- Voice_over_IP wikiPageWikiLink G.729.
- Voice_over_IP wikiPageWikiLink G.hn.
- Voice_over_IP wikiPageWikiLink GSM.
- Voice_over_IP wikiPageWikiLink Geosynchronous_satellite.
- Voice_over_IP wikiPageWikiLink Gizmo5.
- Voice_over_IP wikiPageWikiLink Google_Talk.
- Voice_over_IP wikiPageWikiLink Grandstream_Networks.
- Voice_over_IP wikiPageWikiLink H.248.
- Voice_over_IP wikiPageWikiLink H.323.
- Voice_over_IP wikiPageWikiLink Hacker_(computer_security).
- Voice_over_IP wikiPageWikiLink High_bit_rate_media_transport.
- Voice_over_IP wikiPageWikiLink High_fidelity.
- Voice_over_IP wikiPageWikiLink IEEE_802.11.
- Voice_over_IP wikiPageWikiLink IEEE_802.11e-2005.
- Voice_over_IP wikiPageWikiLink IEEE_P802.1p.
- Voice_over_IP wikiPageWikiLink IP_Multimedia_Subsystem.
- Voice_over_IP wikiPageWikiLink IPsec.
- Voice_over_IP wikiPageWikiLink IPv4.
- Voice_over_IP wikiPageWikiLink ITU-T.
- Voice_over_IP wikiPageWikiLink Impedance_matching.
- Voice_over_IP wikiPageWikiLink Incumbent_local_exchange_carrier.
- Voice_over_IP wikiPageWikiLink India.
- Voice_over_IP wikiPageWikiLink Institute_of_Electrical_and_Electronics_Engineers.
- Voice_over_IP wikiPageWikiLink Integrated_services.
- Voice_over_IP wikiPageWikiLink Intel.
- Voice_over_IP wikiPageWikiLink Inter-Asterisk_eXchange.
- Voice_over_IP wikiPageWikiLink Interactive_Connectivity_Establishment.
- Voice_over_IP wikiPageWikiLink Interconnection.
- Voice_over_IP wikiPageWikiLink Internet.
- Voice_over_IP wikiPageWikiLink Internet_Low_Bitrate_Codec.
- Voice_over_IP wikiPageWikiLink Internet_Protocol.
- Voice_over_IP wikiPageWikiLink Internet_access.
- Voice_over_IP wikiPageWikiLink Internet_fax.
- Voice_over_IP wikiPageWikiLink Internet_service_provider.
- Voice_over_IP wikiPageWikiLink Internet_telephony_service_provider.
- Voice_over_IP wikiPageWikiLink Jingle_(protocol).
- Voice_over_IP wikiPageWikiLink Jitter.