USSD code for keeping your customers engaged.
USSD MOBILE APPLICATION Witsmind Co. Ltd is working on a Mobile Application that uses Unstructured Supplementary Service Data a.k.a USSD code to capture information from different data sources and display it to the user in a custom way for both feature phones and smart phones for purposes of improving farming.
,%20a%20successor%20of%20the%20discontinued%20Firefox%20OS.KaiOS%20brings%20support%20of%204G/LTE,%20GPS,%20and%20Wi-Fi,%20as%20well%20as%20HTML5-based%20apps%20and%20longer%20battery%20life,%20to%20non-touch%20devices.%20It%20has%20an%20optimized%20user%20interface%20for%20smart%20feature%20phones,%20needs%20little%20memory,%20and%20consumes%20less%20energy%20than%20other%20operating%20systems.%20It%20also%20comes%20with%20the%20KaiStore,%20which%20enables%20users%20to%20download%20applications%20in%20categories%20like%20social%20media,%20games,%20navigation,%20and%20streaming%20entertainment. p%20style=text-align:%20center;img%20class=alignnone%20size-medium%20wp-image-1760%20src=http://witsmind.com/wp-content/uploads/2019/03/03-737x388-1-300x158.jpg%20alt=%20width=300%20height=158%20//pp%20style=text-align:%20center;/p TechnologiesKaiOS%20apps%20are%20based%20on%20web%20technologies%20– a%20href=https://developer.mozilla.org/en-US/docs/Web/HTMLHTML/a, a%20href=https://developer.mozilla.org/en-US/docs/Web/CSSCSS/a,%20and a%20href=https://developer.mozilla.org/en-US/docs/Web/JavaScriptJavaScript/a and%20are%20run%20by%20Gecko%20runtime.%20If%20you%20have%20written%20a%20web%20page%20you%20already%20know%20the%20basics.Rendering%20is%20done%20by%20parsing%20HTML/CSS%20and%20painted%20using%20graphic%20APIs.%20JavaScripts%20are%20executed%20by%20the%20JS%20engine a%20href=https://developer.mozilla.org/en-US/docs/Mozilla/Projects/SpiderMonkeySpiderMonkey/a and%20connected%20to%20C++%20components%20by a%20href=https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XPCOM/Language_bindings/XPConnectXPConnect/a and a%20href=https://developer.mozilla.org/en-US/docs/Mozilla/WebIDL_bindingsWebIDL%20bindings/a.%20Applications%20and%20the%20core%20process%20communicate%20only%20through a%20href=https://wiki.mozilla.org/IPC_ProtocolsIPC%20protocols/a defined%20by a%20href=https://developer.mozilla.org/en-US/docs/Mozilla/IPDL/TutorialIPDL/a.Additionally%20a%20set%20of%20core%20components%20including%20file%20and%20memory%20management,%20threads%20and%20data%20structures%20etc.%20are%20provided%20through%20the a%20href=https://en.wikipedia.org/wiki/XPCOMXPCOM/a component%20object%20model.KaiOS%20seemingly%20came%20out%20of%20nowhere.%20A%20few%20months%20ago,%20we%20didn’t%20even%20have%20a%20website.%20Now%20our%20operating%20system%20is%20running a%20href=https://www.kaiostech.com/meet-kai-technologies-force-behind-30-million-phones-counting/on%20over%2030%20million%20phones/a in%20India%20and%20North%20America.%20By%20the%20end%20of%202018,%20we%20plan%20to%20offer%20KaiOS%20in%20more%20than%20100%20countries%20across%20the%20globe.This%20didn’t%20happen%20overnight.%20Here’s%20the%20real%20story%20about%20our%20name,%20history%20with%20Firefox,%20and%20purpose.KaiOS%20is%20not%20Firefox%20OS.%20Our%20platform%20is%20based%20on%20the%20original%20Mozilla%20project.%20We%20even%20have%20people%20from%20the%20original%20Mozilla%20team%20in%20our%20engineering%20and%20UX%20departments.%20But%20KaiOS%20has%20been%20developed%20into%20something%20much%20more%20robust%20and%20expanded%20than%20the%20original%20Firefox%20OS.%20Think%20of%20us%20as%20distant%20cousins,%20not%20siblings%20nor%20children.That%20brings%20us%20to%20the%20name.%20When%20the%20current%20stakeholders%20took%20over%20the%20project%20from%20Mozilla,%20we%20wanted%20something%20that%20would%20reflect%20our%20ambition%20to%20be%20accessible%20and%20open%20to%20all%20members%20of%20society.%20We%20also%20wanted%20a%20name%20that%20would%20work%20in%20both%20Western%20and%20Asian%20languages.While%20it%20could%20be%20mistaken%20for%20a%20person’s%20name,%20“Kai”%20originates%20from%20the%20Chinese%20word%20for%20open:%20开%20(kāi).%20The%20meaning%20fits%20and%20the%20sound%20is%20pronounceable%20in%20almost%20every%20tongue.%20Which%20brings%20us%20to%20the%20most%20important%20part:%20why%20does%20Kai%20exist?We%20believe%20the%20world%20doesn’t%20need%20another%20expensive%20smartphone.%20There%20are%20still%20vast%20groups%20of%20people%20locked%20out%20of%20the%20digital%20revolution.%20In%20emerging%20markets,%20over%20three%20billion%20(!)%20people%20don’t%20have%20basic%20internet%20access.%20In%20mature%20markets,%20close%20to%2020%20percent%20of%20mobile%20users%20still%20use%20basic%20phones%20because%20they%20can’t%20or%20don’t%20want%20to%20use%20a%20smartphone.%20For%20all%20these%20people,%20not%20being%20connected%20means%20missed%20opportunities%20in%20education,%20health,%20communication,%20entertainment,%20and%20business.Kai%20exists%20to%20unlock%20these%20opportunities.%20Together%20with%20our%20partners,%20we’re%20focused%20on%20creating%20products%20that%20make%20that%20happen.%20In%202017,%20we%20launched%20phones%20with%20Sprint,%20T-Mobile%20and%20AT&T%20in%20North%20America,%20and%20with%20Jio%20in%20India.%20This%20is%20just%20the%20beginning.%20Many%20other%20countries%20and%20partners%20will%20join%20us%20on%20this%20mission%20in%20the%20months%20ahead. p%20style=text-align:%20center;img%20class=alignnone%20size-medium%20wp-image-1761%20src=http://witsmind.com/wp-content/uploads/2019/03/kaios-300x154.png%20alt=%20width=300%20height=154%20//p We%20believe%20genius,%20happiness,%20and%20wealth%20are%20waiting%20to%20blossom%20in%20new%20places.%20All%20that’s%20needed%20is%20access%20to%20the%20digital%20revolution,%20just%20like%20it%20has%20sparked%20these%20things%20in%20other%20parts%20of%20the%20world.%20We%20believe%20Kaios%20can%20play%20a%20small%20part%20in%20making%20this%20happen,%20which%20is%20why%20our%20team%20of%20close%20to%20200%20people%20comes%20to%20work%20every%20day%20in%20our%20offices%20around%20the%20world. ){kind=link}
.Scheduling:%20Find%20the%20optimal%20schedule%20for%20a%20complex%20set%20of%20tasks,%20some%20of%20which%20need%20to%20be%20performed%20before%20others,%20on%20a%20fixed%20set%20of%20machines,%20or%20other%20resources.Bin%20packing:%20Pack%20as%20many%20objects%20of%20various%20sizes%20as%20possible%20into%20a%20fixed%20number%20of%20bins%20with%20maximum%20capacities.In%20most%20cases,%20problems%20like%20these%20have%20a%20vast%20number%20of%20possible%20solutions—too%20many%20for%20a%20computer%20to%20search%20them%20all.%20To%20overcome%20this,%20OR-Tools%20uses%20state-of-the-art%20algorithms%20to%20narrow%20down%20the%20search%20set,%20in%20order%20to%20find%20an%20optimal%20(or%20close%20to%20optimal)%20solution.OR-Tools%20includes%20solvers%20for:stronga%20href=https://developers.google.com/optimization/cpConstraint%20Programming/a/strongA%20set%20of%20techniques%20for%20finding%20feasible%20solutions%20to%20a%20problem%20expressed%20as emconstraints/em (e.g.,%20a%20room%20can't%20be%20used%20for%20two%20events%20simultaneously,%20or%20the%20distance%20to%20the%20crops%20must%20be%20less%20than%20the%20length%20of%20the%20hose,%20or%20no%20more%20than%20five%20TV%20shows%20can%20be%20recorded%20at%20once).stronga%20href=https://developers.google.com/optimization/lp/lpLinear%20and%20Mixed-Integer%20Programming/a/strongThe a%20href=https://developers.google.com/optimization/lp/glopGlop/a linear%20optimizer%20finds%20the%20optimal%20value%20of%20a%20linear%20objective%20function,%20given%20a%20set%20of%20linear%20inequalities%20as%20constraints%20(e.g.,%20assigning%20people%20to%20jobs,%20or%20finding%20the%20best%20allocation%20of%20a%20set%20of%20resources%20while%20minimizing%20cost).%20Glop%20and%20the%20mixed-integer%20programming%20software a%20href=http://scip.zib.de/SCIP/a are%20also%20available%20via%20both a%20href=https://developers.google.com/optimization/lp/add-onGoogle%20Sheets/a and a%20href=https://developers.google.com/apps-script/reference/optimizationGoogle%20Apps%20Script/a.stronga%20href=https://developers.google.com/optimization/routingVehicle%20Routing/a/strongA%20specialized%20library%20for%20identifying%20best%20vehicle%20routes%20given%20constraints.stronga%20href=https://developers.google.com/optimization/flowGraph%20Algorithms/a/strongCode%20for%20finding%20shortest%20paths%20in%20graphs,%20min-cost%20flows,%20max%20flows,%20and%20linear%20sum%20assignments.The a%20href=https://developers.google.com/optimization/introduction/get_startednext%20section/a will%20get%20you%20started%20using%20OR-Tools%20quickly. p%20style=text-align:%20center;img%20class=alignnone%20size-medium%20wp-image-1764%20src=http://witsmind.com/wp-content/uploads/2019/03/or-300x73.png%20alt=%20width=300%20height=73%20//p strongVehicle%20Routing%20with%20Pickups%20and%20Deliveries/strongIn%20this%20section%20we%20describe%20a%20VRP%20in%20which%20each%20vehicle%20picks%20up%20items%20at%20various%20locations%20and%20drops%20them%20off%20at%20others.%20The%20problem%20is%20to%20assign%20routes%20for%20the%20vehicles%20to%20pick%20up%20and%20deliver%20all%20the%20items,%20while%20minimizing%20the%20length%20of%20the%20longest%20route.strongSolving%20the%20example%20with%20OR-Tools/strongThe%20following%20sections%20describe%20how%20to%20solve%20the%20VRP%20with%20pickups%20and%20deliveries.%20Much%20of%20the%20code%20is%20borrowed%20from%20the a%20href=https://developers.google.com/optimization/routing/vrp#entire_program1previous%20VRP%20example/a,%20so%20we'll%20focus%20on%20the%20parts%20that%20are%20new.strongCreate%20the%20data/strongThe%20data%20for%20the%20problem%20includes%20the%20distance%20matrix%20from%20the%20previous%20VRP%20example,%20along%20with%20a%20list%20of%20pairs%20of%20pickup%20and%20delivery%20locations, data%5B'pickups_deliveries'%5D,%20corresponding%20to%20the%20directed%20edges%20in%20the%20diagram%20above.%20The%20code%20below%20defines%20the%20pickup%20and%20delivery%20locations.a%20href=https://developers.google.com/optimization/routing/pickup_delivery#pythonPython/aa%20href=https://developers.google.com/optimization/routing/pickup_delivery#c++C++/aa%20href=https://developers.google.com/optimization/routing/pickup_delivery#javaJava/aa%20href=https://developers.google.com/optimization/routing/pickup_delivery#cC#/adata%5B'pickups_deliveries'%5D%20=%20%5B%5B1,%206%5D,%5B2,%2010%5D,%5B4,%203%5D,%5B5,%209%5D,%5B7,%208%5D,%5B15,%2011%5D,%5B13,%2012%5D,%5B16,%2014%5D,%5DFor%20each%20pair,%20the%20first%20entry%20is%20index%20of%20the%20pickup%20location,%20and%20the%20second%20is%20the%20index%20of%20the%20delivery%20location.strongDefine%20pickup%20and%20delivery%20requests/strongThe%20following%20code%20defines%20pickup%20and%20delivery%20requests,%20using%20pickup%20and%20delivery%20locations%20in data%5B'pickups_deliveries'%5Da%20href=https://developers.google.com/optimization/routing/pickup_delivery#pythonPython/aa%20href=https://developers.google.com/optimization/routing/pickup_delivery#c++C++/aa%20href=https://developers.google.com/optimization/routing/pickup_delivery#javaJava/aa%20href=https://developers.google.com/optimization/routing/pickup_delivery#cC#/afor%20request%20in%20data%5B'pickups_deliveries'%5D:pickup_index%20=%20manager.NodeToIndex(request%5B0%5D)delivery_index%20=%20manager.NodeToIndex(request%5B1%5D)routing.AddPickupAndDelivery(pickup_index,%20delivery_index)routing.solver().Add(routing.VehicleVar(pickup_index)%20==%20routing.VehicleVar(delivery_index))routing.solver().Add(distance_dimension.CumulVar(pickup_index)%20<=distance_dimension.CumulVar(delivery_index))For%20each%20pair,%20the%20commandrouting.AddPickupAndDelivery(pickup_index,%20delivery_index)creates%20a%20pickup%20and%20delivery%20request%20for%20an%20item.The%20following%20line%20adds%20the%20requirement%20that%20each%20item%20must%20be%20picked%20up%20and%20delivered%20by%20the%20same%20vehicle.routing.solver().Add(routing.VehicleVar(pickup_index)%20==routing.VehicleVar(delivery_index))Finally,%20we%20add%20the%20obvious%20requirement%20that%20each%20item%20must%20be%20picked%20up%20before%20it%20is%20delivered.%20To%20do%20so,%20we%20require%20that%20a%20vehicle's%20cumulative%20distance%20at%20an%20item's%20pickup%20location%20is%20at%20most%20its%20cumulative%20distance%20at%20the%20delivery%20location.routing.solver().Add(distance_dimension.CumulVar(pickup_index)%20<=distance_dimension.CumulVar(delivery_index))strongRunning%20the%20program/strongThe%20complete%20programs%20for%20the%20VRP%20with%20pickups%20and%20deliveries%20are%20shown%20in%20the%20next%20section.%20When%20you%20run%20the%20program,%20it%20displays%20the%20routes. p%20style=text-align:%20center;img%20class=alignnone%20size-medium%20wp-image-1767%20src=http://witsmind.com/wp-content/uploads/2019/03/googletools-300x180.jpg%20alt=%20width=300%20height=180%20//p ){kind=link}
USSD%20(Unstructured%20Supplementary%20Service%20Data)%20is%20a%20Global%20System%20for%20Mobile(a%20href=https://searchmobilecomputing.techtarget.com/definition/GSMGSM/a)%20communication%20technology%20that%20is%20used%20to%20send%20text%20between%20a%20mobile%20phone%20and%20an%20application%20program%20in%20the%20network.%20Applications%20may%20include%20prepaid%20roaming%20or%20mobile%20chatting.USSD%20is%20similar%20to%20Short%20Messaging%20Service%20(SMS),%20but,%20unlike%20SMS,%20USSD%20transactions%20occur%20during%20the%20session%20only.%20With%20SMS,%20message%20scan%20be%20sent%20to%20a%20mobile%20phone%20and%20stored%20for%20several%20days%20if%20the%20phone%20is%20not%20activated%20or%20within%20range.The%20Wireless%20Application%20Protocol%20(a%20href=https://searchmobilecomputing.techtarget.com/definition/WAPWAP/a)%20supports%20USSD.%20USSD%20is%20defined%20in%20the%20GSM%20standard%20documents%20GSM%2002.90%20and%20GSM%2003.90.strongSS7%20USSD%20Center%20|USSD%20gateway%20|USSD%20platform/strongThe%20USSD%20platform,%20Unrestricted%20Supplementary%20Service%20Data%20(USSD),%20is%20used%20by%20the%20mobile%20interaction%20business%20to%20send%20text%20between%20a%20mobile%20phone%20and%20an%20application%20program%20interacting%20promptly%20with%20end-user.%20USSD%20gateway%20transactions%20only%20take%20place%20while%20mobile%20phones%20are%20turned%20on.%20USSD%20messages%20travel%20over%20SS7%20signaling%20channels,%20providing%20a%20fast%20way%20for%20customer%20connections%20and%20data%20transfer.%20USSD%20platform%20transactions%20respond%20in%20less%20than%20a%20second.The%20USSD%20platform%20solution%20is%20suitable%20for:Mobile%20initiated%20and%20network%20initiated%20USSD%20for%20mobile%20user%20interaction.News%20with%20use%20of%20RSS%20feedsChat%20servicesQuiz,%20survey,%20Q&A%20servicePolling%20serviceBanking p%20style=text-align:%20center;img%20class=alignnone%20size-medium%20wp-image-1771%20src=http://witsmind.com/wp-content/uploads/2019/03/ussd-graph-site-011-300x182.png%20alt=%20width=300%20height=182%20//p strongEnabling%20VAS%20based%20on%20USSD%20gateway%20interaction%20and%20cost%20savings/strongThe%20USSD%20center%20has%20full%20SS7%20interfaces%20and%20flexible%20IP%20interfaces%20that%20allow%20interfaction%20with%20applications%20that%20manage%20value%20added%20services.Operators%20in%20the%20ICT%20industry%20can%20use%20the%20USSD%20gateway%20for%20management%20of%20USSD%20transactions%20between%20mobile%20and%20the%20internet-based%20part%20of%20the%20industry.This%20enables%20the%20operators%20of%20the%20USSD%20center%20to%20offer%20value%20added%20services%20based%20on%20USSD%20interactions%20with%20mobile%20end%20users%20and%20to%20save%20costs%20in%20the%20operations.strongSpecifications%20for%20USSD%20platform:/strongUp%20to%208%20SS7%20TDM%20E1%20lines,%20up%20to%2016%20signalling%20time%20slots%20per%20E1SIGTRAN%20M3UARuns%20on%20industry%20standard%20x86-64%20server%20hardware%20with%20digital%20interface%20cards%20(e.g.%20Digium,%20Sangoma,%20Openvox)Network%20initiated%20(Mobile%20Terminated)%20USSDUser%20initiated%20(Mobile%20Originated)%20USSDUp%20to%2060,000%20simultaneous%20sessions p%20style=text-align:%20center;img%20class=alignnone%20size-medium%20wp-image-1770%20src=http://witsmind.com/wp-content/uploads/2019/03/ussd-example-300x146.png%20alt=%20width=300%20height=146%20//p Distributed%20architecture%20(USSD%20service%20and%20E1/SIGTRAN%20MTP3%20service%20on%20different%20servers) ){kind=link}
