Contents 1 Types of telecommunication 2 Types of telecommunication networks 3 Aspects of telecommunication transmission 3.1 Telecommunication technology 3.2 Communications media types 3.3 Relationship between media and transmitters 3.4 Multiple access to media 4 History of telecommunication 5 Major telecommunications equipment manufacturers 6 Major telecommunications service providers 7 Telecommunication organizations 8 Telecommunication publications 9 Persons influential in telecommunication 10 See also 11 References 12 External links

Types of telecommunication[edit] E-mail Fax Instant messaging Radio Telephony Television broadcasting Videoconferencing VoIP

Types of telecommunication networks[edit] Telecommunications network Computer networks ARPANET Ethernet Internet Wireless networks Public switched telephone networks (PSTN) Packet switched networks Radio networks Television networks

Aspects of telecommunication transmission[edit] Telecommunication Analog Digital Optics Telecommunication technology[edit] Modulation Amplitude modulation Frequency modulation Quadrature amplitude modulation Nyquist rate Nyquist ISI criterion Pulse shaping Intersymbol interference Communications media types[edit] Physical media for Telecommunication Twisted pair Coaxial cable Optical fiber Telecommunication through Free Space Broadcast radio frequency including television and radio Line-of-sight Communications satellite Terrestrial Microwave Wireless LAN Relationship between media and transmitters[edit] Physical access to media Simplex Duplex (telecommunications) Logical relationships Return channel Two-way alternating Two-way simultaneous Multiple access to media[edit] Multiplexing Analog Digital Time-division multiplexing Statistical multiplexing and Packet switching Media Access Control Contention Token-based Centralized token control Distributed token control

History of telecommunication[edit] History of telecommunication History of telegraphy History of the telephone Invention of the telephone Timeline of the telephone History of radio History of television History of videophones History of mobile phones History of computing hardware History of the Internet

Major telecommunications equipment manufacturers[edit] Alcatel-Lucent Aricent AT&T Avaya Ciena Cisco Systems Ericsson Fujitsu HCL Technologies Huawei NEC Nokia-Siemens Networks (now called Nokia Solutions and Networks) Nortel (bankrupt) ShoreTel Verizon Wildix ZTE

Major telecommunications service providers[edit] List of mobile network operators

Telecommunication organizations[edit] Alliance for Telecommunications Industry Solutions Telecommunications Industry Association

Telecommunication publications[edit]

Persons influential in telecommunication[edit] Edwin Howard Armstrong John Logie Baird Paul Baran Alexander Graham Bell Tim Berners-Lee Jagadish Chandra Bose Vint Cerf Claude Chappe Donald Davies Lee de Forest Philo Farnsworth Reginald Fessenden Elisha Gray Innocenzo Manzetti Guglielmo Marconi Antonio Meucci Alexander Stepanovich Popov Johann Philipp Reis Nikola Tesla Camille Tissot Alfred Vail Charles Wheatstone Vladimir K. Zworykin

See also[edit] Telecommunication portal


External links[edit] Find more abouttelecommunicationat Wikipedia's sister projects Definitions from Wiktionary Media from Wikimedia Commons News from Wikinews Quotations from Wikiquote Texts from Wikisource Textbooks from Wikibooks Learning resources from Wikiversity International Telecommunication Union (ITU) ATIS Telecom Glossary Communications Engineering Tutorials Federal Communications Commission IEEE Communications Society International Telecommunication Union Ericsson's Understanding Telecommunications at the Wayback Machine (archived April 13, 2004) (Ericsson removed the book from their site in September 2005) VoIP, Voice over Internet Protocol and Internet telephone calls Free Telco Dictionary v t e Outlines General reference Culture and the arts Geography and places Health and fitness History and events Mathematics and logic Natural and physical sciences People and self Philosophy and thinking Religion and belief systems Society and social sciences Technology and applied sciences Retrieved from "" Categories: Wikipedia outlinesTelecommunicationsTechnology-related listsTelecommunications listsHidden categories: Webarchive template wayback links

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Outline (list)TelecommunicationTransmission (telecommunications)Signal (electronics)CommunicationElectromagnetic RadiationDrum (communication)Smoke SignalHydraulic TelegraphBeaconSemaphore LineE-mailFaxInstant MessagingOutline Of RadioTelephonyOutline Of Television BroadcastingVideoconferencingVoIPTelecommunications NetworkComputer NetworkARPANETEthernetInternetWireless NetworkPublic Switched Telephone NetworkPacket SwitchingRadio NetworkTelevision NetworkTelecommunicationAnalog SignalDigital DataOpticsModulationAmplitude ModulationFrequency ModulationQuadrature Amplitude ModulationNyquist RateNyquist ISI CriterionPulse ShapingIntersymbol InterferenceTwisted PairCoaxial CableOptical FiberBroadcastingRadio FrequencyLine-of-sight PropagationCommunications SatelliteMicrowaveWireless LANSimplexDuplex (telecommunications)Return ChannelTwo-way AlternatingTwo-way SimultaneousTime-division MultiplexingStatistical MultiplexingPacket SwitchingHistory Of TelecommunicationTelegraphyHistory Of The TelephoneInvention Of The TelephoneTimeline Of The TelephoneHistory Of RadioHistory Of TelevisionVideophoneHistory Of Mobile PhonesHistory Of Computing HardwareHistory Of The InternetAlcatel-LucentAricentAT&TAvayaCienaCisco SystemsEricssonFujitsuHCL TechnologiesHuaweiNECNokia-Siemens NetworksNortelShoreTelVerizonWildixZTEList Of Mobile Network OperatorsAlliance For Telecommunications Industry SolutionsTelecommunications Industry AssociationEdwin Howard ArmstrongJohn Logie BairdPaul BaranAlexander Graham BellTim Berners-LeeJagadish Chandra BoseVint CerfClaude ChappeDonald DaviesLee De ForestPhilo FarnsworthReginald FessendenElisha GrayInnocenzo ManzettiGuglielmo MarconiAntonio MeucciAlexander Stepanovich PopovJohann Philipp ReisNikola TeslaCamille TissotAlfred VailCharles WheatstoneVladimir K. ZworykinPortal:TelecommunicationWikipedia:Wikimedia Sister ProjectsWayback MachineTemplate:Outline FooterTemplate Talk:Outline FooterPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesPortal:Contents/OutlinesHelp:CategoryCategory:Wikipedia OutlinesCategory:TelecommunicationsCategory:Technology-related ListsCategory:Telecommunications ListsCategory:Webarchive Template Wayback LinksDiscussion About Edits From This IP Address [n]A List Of Edits Made From This IP Address [y]View The Content Page [c]Discussion About The Content Page [t]Edit This Page [e]Visit The Main Page [z]Guides To Browsing WikipediaFeatured Content – The Best Of WikipediaFind Background Information On Current EventsLoad A Random Article [x]Guidance On How To Use And Edit WikipediaFind Out About WikipediaAbout The Project, What You Can Do, Where To Find ThingsA List Of Recent Changes In The Wiki [r]List Of All English Wikipedia Pages Containing Links To This Page [j]Recent Changes In Pages Linked From This Page [k]Upload Files [u]A List Of All Special Pages [q]Wikipedia:AboutWikipedia:General Disclaimer

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