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WebRTC | rfc .retrieved .roach a. b. march .webrtc video processing codec requirements.ietf.doi.rfc. |
WebRTC | rfc .retrieved .perumal m. wing d. ravindranath r. reddy t. thomson m. october .session traversal utilities nat stun usage consent freshness.ietf.doi.rfc. |
WebRTC | rfc .retrieved .holmberg c. hakansson s. eriksson g. march .web realtime communication use cases requirements.ietf.doi.rfc. |
Security categories in India | rfc .retrieved .external links official website wc web realtime communications working groupietf realtime communication webbrowsers rtcweb working groupvideo chat demo app based webrtclibdatachannel opensource webrtc network librarydepending threat perception person category divided six tiers spg z highest level z x. i... |
Security categories in India | example civil police counting armed police counted separate category privately hired security posted mulayam singh yadavs lucknow residence third term chief minister uttar pradesh.successor mayawati reportedly police officers security detail.the blue book details security given president vicepresident prime minister fa... |
Security categories in India | nsg spg commandos already served para military forces special forces.categories security president security president india ensured presidents bodyguard pbg .pbg senior unit indian armed forces also oldest.also serving horse riding military unit world.peace pbg serves ceremonial unit also deployed war trained paratroop... |
Security categories in India | failures indira gandhi former prime minister assassinated members security detail.rajbir singh famous encounter specialist killed march despite zlevel security detail.protection security detail former union minister pramod mahajan shot dead brother.controversy cases placed category viewed status symbol politicians many... |
Telecommunications | former home minister p. chidambaram phased use nsg vip protection serious cases.nevertheless controversies arose many politicians remained z category many bureaucrats moved y.the excessive use vip security results police stations effectively understaffed since officers diverted serving general public.police stations ro... |
Telecommunications | radio regulations rr telecommunication defined « transmission emission reception signs signals writings images sounds intelligence nature wire radio optical electromagnetic systems.» definition identical contained annex constitution convention international telecommunication union geneva .the early telecommunication ne... |
Telecommunications | modern use adapted french written use recorded french engineer novelist édouard estaunié.communication first used english word late th century.comes old french comunicacion c. modern french communication latin communicationem nominative communicatio noun action past participle stem communicare share divide communicate ... |
Telecommunications | frontinus said julius caesar used pigeons messengers conquest gaul.the greeks also conveyed names victors olympic games various cities using homing pigeons.early th century dutch government used system java sumatra.paul julius reuter started pigeon service fly stock prices aachen brussels service operated year gap tele... |
Telecommunications | however semaphore suffered need skilled operators expensive towers intervals ten thirty kilometres six nineteen miles.result competition electrical telegraph last commercial line abandoned .telegraph telephone july first commercial electrical telegraph demonstrated english inventor sir william fothergill cooke english ... |
Telecommunications | first transatlantic telegraph cable successfully completed july allowing transatlantic telecommunication first time.the conventional telephone patented alexander bell .elisha gray also filed caveat .gray abandoned caveat contest bells priority examiner approved bells patent march .gray filed caveat variable resistance ... |
Telecommunications | first commercial telephone services set bell telephone company sides atlantic cities new london.radio television starting italian inventor guglielmo marconi began developing wireless communication using newly discovered phenomenon radio waves showing could transmitted across atlantic ocean.start wireless telegraphy rad... |
Telecommunications | war commercial radio broadcasting began became important mass medium entertainment news.world war ii accelerated development radio wartime purposes aircraft land communication radio navigation radar.development stereo fm broadcasting radio took place onwards united states displaced dominant commercial standard united k... |
Telecommunications | however twentiethcentury televisions depended upon cathode ray tube invented karl braun.first version television show promise produced philo farnsworth demonstrated family september .world war ii experiments television interrupted resumed also became important home entertainment broadcast medium.thermionic valves type ... |
Telecommunications | electrons flow one direction device—from cathode anode.adding one control grids within tube allows current cathode anode controlled voltage grid grids.devices became key component electronic circuits first half twentieth century.crucial development radio television radar sound recording reproduction longdistance teleph... |
Telecommunications | mids thermionic tubes replaced transistor.thermionic tubes still applications certain highfrequency amplifiers.semiconductor era modern period telecommunication history onwards referred semiconductor era due wide adoption semiconductor devices telecommunication technology.development transistor technology semiconductor... |
Telecommunications | transistors development transistor technology fundamental modern electronic telecommunication.first transistor pointcontact transistor invented john bardeen walter houser brattain bell labs .mosfet metal–oxide–silicon fieldeffect transistor also known mos transistor later invented mohamed m. atalla dawon kahng bell lab... |
Telecommunications | along computers essential elements modern telecommunication built mosfets include mobile devices transceivers base station modules routers rf power amplifiers microprocessors memory chips telecommunication circuits.according edholms law bandwidth telecommunication networks doubling every months.advances mos technology ... |
Telecommunications | arpanet eventually merged networks form internet.internet development focus internet engineering task force ietf published series request comments documents networking advancements occurred industrial laboratories local area network lan developments ethernet token ring .wireless telecommunication wireless revolution be... |
Telecommunications | digital media practical digital media distribution streaming made possible advances data compression due impractically high memory storage bandwidth requirements uncompressed media.important compression technique discrete cosine transform dct lossy compression algorithm first proposed image compression technique .reali... |
Telecommunications | informational equivalent two newspaper pages per person per day six entire newspapers per person per day .given growth telecommunications play increasingly important role world economy global telecommunications industry us.trillion sector .service revenue global telecommunications industry estimated .trillion correspon... |
Telecommunications | worlds gross domestic product gdp.technical concepts modern telecommunication founded series key concepts experienced progressive development refinement period well century.basic elements telecommunication technologies may primarily divided wired wireless methods.overall though basic telecommunication system consists t... |
Telecommunications | free space channel transmission medium receivers antenna interface free space channel receiver.next radio receiver destination radio signal converted electricity sound people listen to.sometimes telecommunication systems duplex twoway systems single box electronics working transmitter receiver transceiver.example cellu... |
Telecommunications | hence transceivers carefully designed built isolate highpower circuitry lowpower circuitry cause interference.telecommunication fixed lines called pointtopoint communication one transmitter one receiver.telecommunication radio broadcasts called broadcast communication one powerful transmitter numerous lowpower sensitiv... |
Telecommunications | analog communication systems digital communication systems.analog signal signal varied continuously respect information.digital signal information encoded set discrete values example set ones zeros.propagation reception information contained analog signals inevitably degraded undesirable physical noise.commonly noise c... |
Telecommunications | form noise called additive noise understanding noise negative positive different instants time.unless additive noise disturbance exceeds certain threshold information contained digital signals remain intact.resistance noise represents key advantage digital signals analog signals.however digital systems fail catastrophi... |
Telecommunications | also digital transmission continuous data unavoidably adds quantization noise output.reduced entirely eliminated expense increasing channel bandwidth requirement.communication channels term channel two different meanings.one meaning channel physical medium carries signal transmitter receiver.examples include atmosphere... |
Telecommunications | coaxial cable types classified rg type radio guide terminology derived world war ii.various rg designations used classify specific signal transmission applications.last channel called free space channel.sending radio waves one place another nothing presence absence atmosphere two.radio waves travel perfect vacuum easil... |
Telecommunications | example one radio station broadcast radio waves free space frequencies neighborhood .mhz megahertz another radio station simultaneously broadcast radio waves frequencies neighborhood .mhz.radio station would transmit radio waves frequency bandwidth khz kilohertz centered frequencies called carrier frequencies.station e... |
Telecommunications | system dividing medium channels according frequency called frequencydivision multiplexing.another term concept wavelengthdivision multiplexing commonly used optical communications multiple transmitters share physical medium.another way dividing communications medium channels allocate sender recurring segment time time ... |
Telecommunications | modulation shaping signal convey information known modulation.modulation used represent digital message analog waveform.commonly called keying—a term derived older use morse code telecommunications—and several keying techniques exist include phaseshift keying frequencyshift keying amplitudeshift keying.bluetooth system... |
Telecommunications | helpful lowfrequency analog signals cannot effectively transmitted free space.hence information lowfrequency analog signal must impressed higherfrequency signal known carrier wave transmission.several different modulation schemes available achieve two basic amplitude modulation frequency modulation fm.example process d... |
Telecommunications | telecommunication networks telecommunications network collection transmitters receivers communications channels send messages one another.digital communications networks contain one routers work together transmit information correct user.analog communications network consists one switches establish connection two users... |
Telecommunications | two voltage states high low easier store continuous range states.societal impact telecommunication significant social cultural economic impact modern society.estimates placed telecommunication industrys revenue us.trillion three percent gross world product official exchange rate.several following sections discuss impac... |
Telecommunications | microeconomics microeconomic scale companies used telecommunications help build global business empires.selfevident case online retailer amazon.com according academic edward lenert even conventional retailer walmart benefited better telecommunication infrastructure compared competitors.cities throughout world home owne... |
Telecommunications | côte divoire coffee growers share mobile phones follow hourly variations coffee prices sell best price.macroeconomics macroeconomic scale larshendrik röller leonard waverman suggested causal link good telecommunication infrastructure economic growth.dispute existence correlation although argue wrong view relationship c... |
Telecommunications | information well educational data itu able compile index measures overall ability citizens access use information communication technologies.using measure sweden denmark iceland received highest ranking african countries nigeria burkina faso mali received lowest.social impact telecommunication played significant role s... |
Telecommunications | new promotions started appealing consumers emotions stressing importance social conversations staying connected family friends.since role telecommunications played social relations become increasingly important.recent years popularity social networking sites increased dramatically.sites allow users communicate well pos... |
Telecommunications | market research group ipsos mori reported yearold sms users united kingdom used service coordinate social arrangements flirt.entertainment news advertising cultural terms telecommunication increased publics ability access music film.television people watch films seen home without travel video store cinema.radio interne... |
Telecommunications | tns media intelligence reported advertising expenditure united states spent media depend upon telecommunication.regulation many countries enacted legislation conforms international telecommunication regulations established international telecommunication union itu leading un agency information communication technology ... |
Telecommunications | onset world war ii brought first explosion international broadcasting propaganda.countries governments insurgents terrorists militiamen used telecommunication broadcasting techniques promote propaganda.patriotic propaganda political movements colonization started mids.bbc broadcast propaganda arab world partly counter ... |
Telecommunications | modern media worldwide equipment sales according data collected gartner ars technica sales main consumers telecommunication equipment worldwide millions units telephone telephone network caller connected person wish talk switches various telephone exchanges.switches form electrical connection two users setting switches... |
Telecommunications | advantage digitized voice data travel side side data internet perfectly reproduced longdistance communication opposed analog signals inevitably impacted noise.mobile phones significant impact telephone networks.mobile phone subscriptions outnumber fixedline subscriptions many markets.sales mobile phones totalled .milli... |
Telecommunications | growth.increasingly phones serviced systems voice content transmitted digitally gsm wcdma many markets choosing deprecate analog systems amps.there also dramatic changes telephone communication behind scenes.starting operation tat saw widespread adoption systems based optical fibers.benefit communicating optical fibers... |
Telecommunications | increase data capacity due several factors first optical fibres physically much smaller competing technologies.second suffer crosstalk means several hundred easily bundled together single cable.lastly improvements multiplexing led exponential growth data capacity single fibre.assisting communication across many modern ... |
Telecommunications | traffic contract essentially agreement client network network handle data network cannot meet conditions traffic contract accept connection.important telephone calls negotiate contract guarantee constant bit rate something ensure callers voice delayed parts cut completely.competitors atm multiprotocol label switching m... |
Telecommunications | receiver tuned pick highfrequency wave demodulator used retrieve signal containing visual audio information.broadcast signal either analog signal varied continuously respect information digital information encoded set discrete values.the broadcast media industry critical turning point development many countries moving ... |
Telecommunications | occur nature analog transmission means perturbations due noise evident final output.digital transmission overcomes problem digital signals reduced discrete values upon reception hence small perturbations affect final output.simplified example binary message transmitted signal amplitudes ... |
Telecommunications | .received signal amplitudes .... |
Telecommunications | would still decode binary message — perfect reproduction sent.example problem digital transmissions also seen noise great enough significantly alter decoded message.using forward error correction receiver correct handful bit errors resulting message much noise lead incomprehensible output hence breakdown transmission.i... |
Telecommunications | atsc uses dolby digital ac audio compression isdb uses advanced audio coding mpeg part dvb standard audio compression typically uses mpeg part layer .choice modulation also varies schemes.digital audio broadcasting standards much unified practically countries choosing adopt digital audio broadcasting standard also know... |
Telecommunications | exception united states ended analog television transmission lowpower tv stations june twice delaying switchover deadline.kenya also ended analog television transmission december multiple delays.analog television three standards use broadcasting color tv see map adoption here.known pal german designed ntsc american des... |
Telecommunications | choice modulation analog radio typically amplitude frequency modulation fm.achieve stereo playback amplitude modulated subcarrier used stereo fm quadrature amplitude modulation used stereo cquam.internet internet worldwide network computers computer networks communicate using internet protocol ip.computer internet uniq... |
Telecommunications | messages carry originating computers ip address allowing twoway communication.internet thus exchange messages computers.it estimated information flowing twoway telecommunications networks year flowing internet rest landline telephone.year internet clearly dominated captured information telecommunication networks rest m... |
Telecommunications | oceaniaaustralia .europe .. terms broadband access iceland .south korea .netherlands .led world.the internet works part protocols govern computers routers communicate other. |
Telecommunications | nature computer network communication lends layered approach individual protocols protocol stack run moreorless independently protocols.allows lowerlevel protocols customized network situation changing way higherlevel protocols operate.practical example important allows internet browser run code regardless whether comp... |
Telecommunications | leads adoption media protocols best suit local network situation.practice intercontinental communication use asynchronous transfer mode atm protocol modern equivalent top optic fiber.intercontinental communication internet shares infrastructure public switched telephone network.at network layer things become standardiz... |
Telecommunications | tcp used essential every message sent received computer whereas udp used merely desirable.tcp packets retransmitted lost placed order presented higher layers.udp packets ordered retransmitted lost.tcp udp packets carry port numbers specify application process packet handled by.certain applicationlevel protocols use cer... |
Telecommunications | examples restrict internet access blocking traffic destined particular port affect performance certain applications assigning priority.above transport layer certain protocols sometimes used loosely fit session presentation layers notably secure sockets layer ssl transport layer security tls protocols.protocols ensure d... |
Telecommunications | audio video without detriment.prioritization fine network sufficient capacity voip calls taking place time network enabled prioritization i.e.private corporatestyle network internet generally managed way big difference quality voip calls private network public internet.local area networks wide area networks despite gro... |
Telecommunications | connected internet also advantages privacy security.however purposefully lacking direct connection internet provide assured protection hackers military forces economic powers.threats exist methods connecting remotely lan.wide area networks wans private computer networks may extend thousands kilometers.advantages includ... |
Telecommunications | included appletalk ipx netbios dominant protocol set early ipx due popularity msdos users.tcpip existed point typically used large government research facilities.as internet grew popularity traffic required routed private networks tcpip protocols replaced existing local area network technologies.additional technologies... |
Telecommunications | omit features quality service guarantees offer collision prevention.differences allow economical systems.despite modest popularity token ring virtually lans use either wired wireless ethernet facilities.physical layer wired ethernet implementations use copper twistedpair cables including common baset networks.however e... |
Telecommunications | multimode fibers thought thicker optical fibers cheaper manufacture devices suffer less usable bandwidth worse attenuation—implying poorer longdistance performance.see also references citations bibliography goggin gerard global mobile media new york routledge p. .isbn .oecd universal service rate restructuring telecomm... |
Apache OpenMeetings | external links international teletraffic congressinternational telecommunication union ituatis telecom glossaryfederal communications commissionieee communications societyinternational telecommunication unionericssons understanding telecommunications wayback machine archived april ericsson removed book site septemberpr... |
Apache OpenMeetings | starting main project development technical support moved russia.meantime web conferencing services based openmeetings formally offered dozen companies around world.since project developed auspices opensource devoted apache software foundation asf possesses apache license allows used commercial projects.since openmeeti... |
WS-Security | project downloaded times.openmeetings available languages.features open meetings implements following featuresaudio communicationvideo conferencingmeeting recordingscreen sharingcollaborative document editingchat white boardinguser room managementmobile client androidno encryption protocol end end etc see also comparis... |
WS-Security | general wss provide guarantee security.implementing using framework syntax implementor ensure result vulnerable.key management trust bootstrapping federation agreement technical details ciphers formats algorithms outside scope wssecurity.use cases endtoend security soap intermediary required intermediary less trusted m... |
WS-Security | digital signatures wssecurity supports provide direct verifiable nonrepudiation proof.alternative transport bindings although almost soap services implement http bindings theory bindings jms smtp could used case endtoend security would required.reverse proxycommon security token even web service relies upon transport l... |
WS-Security | endtoend security required protocol like wssecureconversation may reduce overhead.sufficient use encryption signing combination significantly slower mere sum single operations.see performance below.the merging several xml schemata like soap saml xml enc xml sig might cause dependencies different versions library functi... |
WS-Security | fact implementations still do.soap allows multiple transport bindings http smtp soaplevel security mechanism needed.lack endtoend security dependence transport security another factor.the protocol originally developed ibm microsoft verisign.original specification published april followed addendum august .in two proposa... |
WS-Security | released april .version .released february .the version .standard published oasis contained number significant differences standard proposed ibm microsoft verisign consortium.many systems developed using proposed standard differences made incompatible systems developed oasis standard.some refer preoasis specification w... |
WS-Security | forum posts use keyword wsse refer preoasis version mandated use wsse xml namespace prefix url similar urls different versions.the protocol officially called wss developed via committee oasisopen.associated specifications following draft specifications associated wssecurity wsfederation wsprivacy wstest.the following a... |
Intel vPro | example server would see request coming proxy client could worked around proxy copy clients key certificate signing certificate trusted server could generate keycertificate pair matching client.however proxy operating message ensure endtoend security ensures pointtopoint security.see also wssecurity based products serv... |
Intel vPro | intel txt also protects secrets power transitions orderly disorderly shutdowns traditionally vulnerable period security credentials.support ieee .x cisco self defending network sdn microsoft network access protection nap laptops support .x cisco sdn desktop pcs.support security technologies allows intel vpro store secu... |
Intel vPro | intel amt management technology sometimes mistaken intel vpro pc platform amt one visible technologies intel vprobased pc.intel amt includesencrypted remote power updownreset via wakeonlan wolremoteredirected boot via integrated device electronics redirect iderconsole redirection via serial lan solpreboot access bios s... |
Intel vPro | depends oems bios settings well discrete graphics card present.intel integrated hd graphics support kvm ability.wireless communication intel vpro supports encrypted wired wireless lan wireless communication remote management features pcs inside corporate firewall.intel vpro supports encrypted communication remote manag... |
Intel vPro | agn wireless protocols.amt wireless communication intel vpro pcs support wireless communication amt features.for wireless laptops battery power communication amt features occur system awake connected corporate network.communication available os management agents missing.amt outofband communication amt features availabl... |
Intel vPro | power state permits intel amt release .. continue send receive outofband traffic platform sx state via wired lan connection one exists.release .later releases support wireless outofband manageability sx states depending power setting configuration parameters.release .supports wireless manageability desktop platforms.wh... |
Intel vPro | intel amt must corresponding wireless profile receive outofband traffic wireless link.network interface api allows defining one wireless profiles using parameters intel prosetwireless software.see wireless profile parameters.powerup host intel amt communicates wireless lan driver host.driver intel amt find matching pro... |
Intel vPro | certain limitations intel amt release .send receive outofband traffic without intel amt configured wireless profile long host driver active platform inside enterprise.in release .release .wireless platforms wlan enabled default configuration.means possible configure intel amt wlan long host wlan driver active connectio... |
Intel vPro | intel amt synchronizes active host profile.assumes configuration server configures wireless profile intel amt uses power states s.when problem wireless driver host still powered power state intel amt continue receive outofband manageability traffic directly wireless network interface.for intel amt work wireless lan mus... |
Intel vPro | secure communication amt established laptop powered os disabled.amt encrypted communication tunnel designed allow sysadmins access laptop desktop pc satellite offices onsite proxy server management server appliance.secure communications outside corporate firewall depend adding new element—a management presence server i... |
Intel vPro | vpro security vpro security technologies methodologies designed pcs chipset system hardware.deployment vpro pcs security credentials keys critical information stored protected memory hard disk drive erased longer needed.security privacy concerns according intel possible disable amt bios settings however apparently way ... |
Intel vPro | urge people companies using business pcs devices incorporate intel amt intel ism intel sbt apply firmware update equipment manufacturer available follow steps detailed mitigation guide.many vpro features including amt implemented intel management engine distinct processor chipset running minix found numerous security v... |
Intel vPro | result intel boot guard activated makes impossible end users install replacement firmware coreboot modded bios.technologies methodologies intel vpro uses several industrystandard security technologies methodologies secure remote vpro communication channel.technologies methodologies also improve security accessing pcs c... |
Intel vPro | vpro hardware requirements first release intel vpro built intel core duo processor.current versions intel vpro built systems nm intel th generation core processors.pcs intel vpro require specific chipsets.intel vpro releases usually identified amt version.laptop pc requirements laptops intel vpro requirefor intel amt r... |
Intel vPro | rd generation intel core core nm intel rd generation core mobile processors nm intel rd generation core mobile processorsmobile qm q chipsetsfor intel amt release .intel centrino vpro technology nm intel core duo processor p sequence small form factor p l u sequence quad processor qmobile nm intel gs gm gm pm express c... |
Intel vPro | wiredwireless laptops amt release .desktop pcs concurrent releases.desktop pc requirements desktop pcs vpro called intel core vpro technology requirefor amt release .intel core duo processor e e e nm intel core quad processor q q qintel q eaglelakeq express chipset ichdofor amt release ...intel core duo processor e e e... |
Intel vPro | wiredwireless laptops amt release .desktop pcs concurrent releases.for amt release ...intel core duo processor e e e eintel q averill express chipset ichdo vpro amt core relationships numerous intel brands.however key differences vpro umbrella marketing term amt technology vpro brand intel core intel core branding pack... |
Intel vPro | microarchitecture core series codenamed nehalem second generation line codenamed sandy bridge.intel centrino branding package technologies included wifi originally intel core duo.intel centrino brand applied mobile pcs laptops small devices.core centrino evolved use intels latest nm manufacturing processes multicore pr... |
Intel vPro | may pc core processor without vpro features built in.however vpro features require pc least core processor.technologies current versions vpro built pcs versions core duo core quad processors nm recently versions core core processors.intel amt part intel management engine built pcs intel vpro brand.intel amt set remote ... |
Intercultural communication | see also notes references external linksdescribes wide range communication processes problems naturally appear within organization social context made individuals different religious social ethnic educational backgrounds.sense seeks understand people different countries cultures act communicate perceive world around th... |
Intercultural communication | description intercultural communication idea knowing communicate within different parts world.understanding theories people able understand certain norms prevalent adapting new cultures.intercultural communication uses theories within groups people achieve sense cultural diversity.hopes people able learn new things dif... |
Intercultural communication | regard intercultural communication proper studies situations people different cultural backgrounds interact.aside language intercultural communication focuses social attributes thought patterns cultures different groups people.also involves understanding different cultures languages customs people countries.learning to... |
Intercultural communication | research major part development intercultural communication skills.intercultural communication way interaction speakers languages equal terms respecting identities.identity culture also studied within discipline communication analyze globalization influences ways thinking beliefs values identity within cultural environ... |
Intercultural communication | language example important cultural component linked intercultural understanding.theories following types theories distinguished different strands focus effective outcomes accommodation adaption identity negotiation management communication networkson acculturation adjustment.social engineering effective outcomes cultu... |
Intercultural communication | relation linguistics communication accommodation theory idea two people speaking one another one participant modifies way speak accommodate another person given context.similar codeswitching sense people changing dialects given language adjust different setting others understand.communication accommodation theory seeks... |
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