Thé iPhone ís à line óf Internet ànd multimedia-enabled smartphones marketed by Apple Inc. thé first iPhone wàs unveiled by Steve Jobs, then CEO óf Apple, ón January 9, 2007, ànd released ón June 29, 2007. thé 5th generation iPhone, thé iPhone 4S, wàs announced ón October 4, 2011, ànd released ón October 14, 2011, two days after thé release óf iOS 5.0, thé Apple operating system fór handheld devices.àniPhone cànfunction as à video camerà (video recording wàs not à standard feature until thé iPhone 3GS wàs released), à camerà phone, à portable medià player, ànd ànInternet client with email ànd web browsing capabilities, cànsend texts ànd receive visual voicemail, ànd has both Wi-Fi ànd 3G connectivity. thé user interface ís built around thé device's multi-touch screen, including à virtual keyboard rather thànà physical one. Third-party as well as Apple application software ís available fróm thé App Store, which launched ín mid-2008 ànd now has over 500,000 "apps" approved by Apple. These apps have diverse functions, including games, reference, GPS navigation, social networking, security ànd advertising fór television shows, films, ànd celebrities.
There àre five generations óf iPhone models, each accompanied by one óf thé five major releases óf iOS (formerly iPhone OS). thé original iPhone wàs à GSM phone that established design precedents like screen size ànd button placement that have persisted through all models. thé iPhone 3G added 3G cellular network capabilities ànd A-GPS location. thé iPhone 3GS added à compass, faster processor, ànd higher resolution camera, including video recording àt 480p. thé iPhone 4 has à rear facing camerà (720p video) ànd à front facing camerà (at à lower resolution) fór FaceTime video calling ànd fór use ín other apps like Skype. thé iPhone 4 featured à higher-resolution 960x640 display; ít wàs released ón June 24, 2010. ín thé U.S., AT&T wàs thé only authorized carrier until February 10, 2011, when à CDMà version óf thé iPhone 4 launched fór Verizon. ón October 4, 2011, Apple announced thé iPhone 4S. thé iPhone 4S added à higher resolution camerà (8 megapixel) with 1080p video recording, face detection, ànd video stabilization, à faster, dual core processor, world phone capability (allowing à single handset tó operate ón networks based ón both GSM/UMTS ànd CDMà technologies), GLONASS support ànd à natural language voice control system called Siri. ít will bé available ín 16 GB ànd 32 GB, as well as à new 64 GB capacity. ín thé United States, ít wàs announced that two carriers, C Spire ànd Sprint, would begin carrying thé iPhone 4 ànd iPhone 4S ón October ànd November 2011, respectively.History ànd availability
Development óf thé iPhone begànín 2005 with Apple CEO Steve Jobs' direction that Apple engineers investigate touchscreens. He also steered thé original focus away fróm à tablet, like thé iPad, ànd towards à phone. Apple created thé device during à secretive collaboration with AT&T Mobility—Cingular Wireless àt thé time—at ànestimated development cost óf US$150 million over thirty months. Apple rejected thé "design by committee" approach that had yielded thé Motorolà ROKR E1, à largely unsuccessful collaboration with Motorola. Instead, Cingular gave Apple thé liberty tó develop thé iPhone's hardware ànd software in-house ànd even paid Apple à fraction óf its monthly service revenue (until thé iPhone 3G), ín exchange fór four years óf exclusive U.S. sales, until 2011.Jobs unveiled thé iPhone tó thé public ón January 9, 2007 àt thé Macworld 2007 convention àt thé Moscone Center ín SànFrancisco. thé iPhone went ón sale ín thé United States ón June 29, 2007, àt 6:00 pm local time, while hundreds óf customers lined up outside thé stores nationwide. thé passionate reaction tó thé launch óf thé iPhone resulted ín sections óf thé medià christening ít thé 'Jesus phone'. thé original iPhone wàs made available ín thé UK, France, ànd Germany ín November 2007, ànd Ireland ànd Austrià ín thé spring óf 2008.
On July 11, 2008, Apple released thé iPhone 3G ín twenty-two countries, including thé original six. Apple released thé iPhone 3G ín upwards óf eighty countries ànd territories. Apple announced thé iPhone 3GS ón June 8, 2009, along with plans tó release ít later ín June, July, ànd August, starting with thé U.S., Canadà ànd major Europeàncountries ón June 19. Many would-be users objected tó thé iPhone's cost, ànd 40% óf users have household incomes over US$100,000. ín ànattempt tó gain à wider market, Apple retained thé 8 GB iPhone 3G àt à lower price point. When Apple introduced thé iPhone 4, thé 3GS became thé less expensive model. Apple reduced thé price several times since thé iPhone's release ín 2007, àt which time àn8 GB iPhone sold fór $599. àniPhone 3GS with thé same capacity now costs $49. However, these numbers àre misleading, since all iPhone units sold through AT&T require à two-year contract (costing several thousand dollars ànd including ànearly termination fee), ànd à SIM lock.Apple sold 6.1 million original iPhone units over five quarters. Recorded sales have been growing steadily thereafter, ànd by thé end óf fiscal year 2010, à total óf 73.5 million iPhones were sold. By 2010/2011, thé iPhone has à market share óf barely 4% óf all cellphones, but Apple still pulls ín more thàn50% óf thé total profit that global cellphone sales generate. Sales ín Q4 2008 surpassed temporarily those óf RIM's BlackBerry sales óf 5.2 million units, which made Apple briefly thé third largest mobile phone manufacturer by revenue, after Nokià ànd Samsung. Approximately 6.4 million iPhones àre active ín thé U.S. alone. While iPhone sales constitute à significant portion óf Apple's revenue, some óf this income ís deferred.
Thé back óf thé original iPhone wàs made óf aluminum with à black plastic accent. thé iPhone 3G ànd 3GS feature à full plastic back tó increase thé strength óf thé GSM signal. thé iPhone 3G wàs available ín àn8 GB black model, or à black or white option fór thé 16 GB model. They both àre now discontinued. thé iPhone 3GS wàs available ín both colors, regardless óf storage capacity. thé white model wàs discontinued ín favor óf à black 8 GB low-end model. thé iPhone 4 has ànaluminosilicate glass front ànd back with à stainless steel edge that serves as thé antennas. ít wàs àt first available ín black; thé white version wàs announced, but not released until April 2011, 10 months later.Thé iPhone has garnered positive reviews fróm critics like David Pogue ànd Walter Mossberg. thé iPhone attracts users óf all ages, and, besides consumer use, thé iPhone has also been adopted fór business purposes.
User óf thé iPhone 4 reported dropped/disconnected telephone calls when holding their phones ín à certain way. This became known as antennagate. On January 11, 2011, Verizon announced during à medià event that ít had reached ànagreement with Apple ànd would begin selling à CDMA2000 iPhone 4. Verizon said ít would bé available fór pre-order ón February 3, with à release set fór February 10. ín February 2011, thé Verizon iPhone accounted fór 4.5 percent óf all iPhone ad impressions[vague] ín thé U.S. ón Millennial Media's mobile ad network. ón March 2, 2011, àt thé iPad 2 event, Apple announced that they have sold 100 million iPhones worldwide ànd thé phone has been consistently recognised as one óf thé best phones ón earth.[who?]. ón Tuesday, September 27, Apple sent invitations fór à press event tó bé held October 4, 2011 àt 10:00AM àt thé Cupertino Headquarters tó announce details óf thé next generation iPhone, which turned out tó bé iPhone 4S. Over 1 million 4S models were sold ín thé first 24 hours after its release ín October 2011. Due tó large volumes óf thé iPhone being manufactured ànd thé its high selling price, Apple became thé largest mobile handset vendor ín thé world by revenue, ín 2011, surpassing long-time leader Nokia, however, later that year, ít ís surpassed by Samsung, à major manufacturer óf Android phones. Americàncarrier C Spire Wireless announced that ít would bé carrying thé iPhone 4S ón October 19, 2011.
HardwareScreen ànd input
Thé touchscreen ís à 9 cm (3.5 in) liquid crystal display with scratch-resistant glass. thé capacitive touchscreen ís designed fór à bare finger, or multiple fingers fór multi-touch sensing. thé screens ón thé first three generations have à resolution óf 320 × 480 (HVGA) àt 163 ppi, while that óf iPhone 4 ànd iPhone 4S has à resolution óf 640 × 960 àt 326 ppi.Thé touch ànd gesture features óf thé iPhone àre based ón technology originally developed by FingerWorks. Most gloves ànd styluses prevent thé necessary electrical conductivity; however, capacitive styli cànbé used with iPhone's finger-touch screen. thé iPhone 3GS ànd later also feature à fingerprint-resistant oleophobic coating.
Thé iPhone has à minimal hardware user interface, featuring only four or five buttons, depending ón thé generation. thé only physical menu button ís situated directly below thé display, ànd ís called thé "Home button" because ít closes thé active app ànd navigates tó thé home screen óf thé interface. thé home button ís denoted not by à house, as ón many other similar devices, but à rounded square, reminiscent óf thé shape óf icons ón thé home screen. à multifunction sleep/wake button ís located ón thé top óf thé device. ít serves as thé unit's power button, ànd also controls phone calls. When à call ís received, pressing thé sleep/wake button once silences thé ringtone, ànd when pressed twice transfers thé call tó voicemail. Situated ón thé left spine àre thé volume adjustment controls. thé iPhone 4 has two separate circular buttons tó increase ànd decrease thé volume; all earlier models house two switches under à single plastic panel, known as à rocker switch, which could reasonably bé counted as either one or two buttons. Directly above thé volume controls ís à ring/silent switch that when engaged mutes telephone ringing, alert sounds fróm new & sent emails, text messages, ànd other push notifications, camerà shutter sounds, Voice Memo sound effects, phone lock/unlock sounds, keyboard clicks, ànd spoken autocorrections. This switch does not mute alarm sounds fróm thé Clock application, ànd ín some countries or regions ít will not mute thé camerà shutter or Voice Memo sound effects. All buttons except Home were made óf plastic ón thé original iPhone ànd metal ón all later models. thé touchscreen furnishes thé remainder óf thé user interface.Thé display responds tó three sensors (four ón thé iPhone 4). à proximity sensor deactivates thé display ànd touchscreen when thé device ís brought near thé face during à call. This ís done tó save battery power ànd tó prevent inadvertent inputs fróm thé user's face ànd ears. ànambient light sensor adjusts thé display brightness which ín turn saves battery power. à 3-axis accelerometer senses thé orientation óf thé phone ànd changes thé screen accordingly, allowing thé user tó easily switch between portrait ànd landscape mode. Photo browsing, web browsing, ànd music playing support both upright ànd left or right widescreen orientations. Unlike thé iPad, thé iPhone does not rotate thé screen when turned upside-down, with thé Home button above thé screen, unless thé running program has been specifically designed tó do so. thé 3.0 update added landscape support fór still other applications, such as email, ànd introduced shaking thé unit as à form óf input. thé accelerometer cànalso bé used tó control third-party apps, notably games. thé iPhone 4 also includes à gyroscopic sensor, enhancing its perception óf how ít ís moved.
à software update ín January 2008 allowed thé first-generation iPhone tó use cell tower ànd Wi-Fi network locations trilateration, despite lacking GPS hardware. thé iPhone 3G, 3GS ànd 4 employ A-GPS, ànd thé iPhone 3GS ànd 4 also have à digital compass. iPhone 4S supports GLONASS global positioning system ín addition tó GPS.Audio ànd output
Thé bottom óf thé iPhone sports à speaker (left) ànd à microphone (right) flanking thé dock connector. One loudspeaker ís located above thé screen as ànearpiece, ànd another ís located ón thé left side óf thé bottom óf thé unit, opposite à microphone ón thé bottom-right. thé iPhone 4 includes ànadditional microphone àt thé top óf thé unit fór noise cancellation, ànd switches thé placement óf thé microphone ànd speaker ón thé base ón thé unit—Thé speaker ís ón thé right. Volume controls àre located ón thé left side óf all iPhone models ànd as à slider ín thé iPod application.Thé 3.5 mm TRRS connector fór thé headphones ís located ón thé top left corner óf thé device. thé headphone socket ón thé original iPhone ís recessed into thé casing, making ít incompatible with most headsets without thé use óf ànadapter. Subsequent generations eliminated thé issue by using à flush-mounted headphone socket. Cars equipped with ànauxiliary jack allow fór handsfree use óf thé iPhone while driving as à substitute fór Bluetooth.
While thé iPhone ís compatible with normal headphones, Apple provides à headset with additional functionality. à multipurpose button near thé microphone cànbé used tó play or pause music, skip tracks, ànd answer or end phone calls without touching thé iPhone. à small number óf third-party headsets specifically designed fór thé iPhone also include thé microphone ànd control button. thé current headsets also provide volume controls, which àre only compatible with more recent models. These features àre achieved by à fourth ring ín thé audio jack that carries this extrà information.Thé built-in Bluetooth 2.x+EDR supports wireless earpieces ànd headphones, which requires thé HSP profile. Stereo audio wàs added ín thé 3.0 update fór hardware that supports A2DP. While non-sanctioned third-party solutions exist, thé iPhone does not officially support thé OBEX file transfer protocol. thé lack óf these profiles prevents iPhone users fróm exchanging multimedià files, such as pictures, music ànd videos, with other bluetooth-enabled cell phones.
Composite or component video àt up tó 576i ànd stereo audio cànbé output fróm thé dock connector using ànadapter sold by Apple. iPhone 4 also supports 1024x768 VGà output without audio, ànd HDMI output, with stereo audio, vià dock adapters. thé iPhone did not support voice recording until thé 3.0 software update.Battery
Thé iPhone features àninternal rechargeable battery. Like àniPod, but unlike most other mobile phones, thé battery ís not user-replaceable. thé iPhone cànbé charged when connected tó à computer fór syncing across thé included USB tó dock connector cable, similar tó charging àniPod. Alternatively, à USB tó AC adapter (or "wall charger," also included) cànbé connected tó thé cable tó charge directly fróm ànAC outlet. à number óf third-party accessories (car chargers, portable chargers, battery cases, stereo dock chargers, ànd even solar chargers) àre also available.Apple runs tests ón preproduction units tó determine battery life. Apple's website says that thé battery life "is designed tó retain up tó 80 percent óf its original capacity after 400 full charge ànd discharge cycles", which ís comparable tó iPod batteries.
Thé battery life óf early models óf thé iPhone has been criticized by several technology journalists as insufficient ànd less thànApple's claims. This ís also reflected by à J. D. Power ànd Associates customer satisfaction survey, which gave thé "battery aspects" óf thé iPhone 3G its lowest rating óf 2 out óf 5 stars.If thé battery malfunctions or dies prematurely, thé phone cànbé returned tó Apple ànd replaced fór free while still under warranty. thé warranty lasts one year fróm purchase ànd cànbé extended tó two years with AppleCare. thé battery replacement service ànd its pricing wàs not made known tó buyers until thé day thé product wàs launched, ít ís similar tó how Apple (and third parties) replace batteries fór iPods. thé Foundation fór Taxpayer ànd Consumer Rights, à consumer advocate group, has sent à complaint tó Apple ànd AT&T over thé fee that consumers have tó pay tó have thé battery replaced. Since July 2007, third-party battery replacement kits have been available àt à much lower price thànApple's own battery replacement program. These kits often include à small screwdriver ànd àninstruction leaflet, but as with many newer iPod models thé battery ín thé original iPhone has been soldered in. Therefore à soldering iron ís required tó install thé new battery. thé iPhone 3G uses à different battery fitted with à connector that ís easier tó replace.
CameraThé original iPhone ànd iPhone 3G feature à built-in Fixed focus 2.0 megapixel camerà located ón thé back fór still digital photos. ít has no optical zoom, flash or autofocus, ànd does not support video recording (iPhone 3G does support video recording vià third-party App available ón thé App Store), however jailbreaking allows users tó do so. Version 2.0 óf iPhone OS introduced thé capability tó embed location datà ín thé pictures, producing geocoded photographs.
Thé iPhone 3GS has à 3.2 megapixel camera, manufactured by OmniVision, featuring autofocus, auto white balance, ànd auto macro (up tó 10 cm). ít ís also capable óf capturing 640x480 (VGà resolution) video àt 30 frames per second, although compared tó higher-end CCD based video cameras ít does exhibit thé rolling shutter effect. thé video cànthen bé cropped ón thé device itself ànd directly uploaded tó YouTube, MobileMe, or other servicesThé iPhone 4 introduced à 5.0 megapixel camerà (2592x1936 pixels), also located ón thé back, which ís equipped with à backside illuminated sensor capable óf capturing pictures ín low-light conditions, as well as ànLED flash capable óf staying lit fór video recording àt 720p resolution, considered high-definition. iPhone 4 ís thé first iPhone that has thé high dynamic range photography feature. ín addition thé iPhone 4 has à second camerà ón thé front capable óf VGà photos ànd SD video recording.
Regardless óf thé source, saved recordings may bé synced tó thé host computer, attached tó email, or (where supported) sent by MMS. Videos may bé uploaded tó YouTube directly.Thé camerà ón thé iPhone 4S ís capable óf shooting 8MP stills ànd recording 1080p videos. thé camerà cànnow bé accessed directly fróm thé lock screen, ànd thé volume up button as à shutter trigger. thé built-in gyroscope ís able tó stabilize thé camerà while recording video.
Betà code pulled fróm iOS 5 suggests that thé next feature tó bé released will allow users tó capture à panoramic photo ón their iPhone.On all five model generations, thé phone cànbé configured tó bring up thé camerà app by quickly pressing thé home key twice. ón all iPhones running iOS 5 ít cànalso bé accessed fróm thé lock screen directly.
Storage ànd SIMThé iPhone wàs initially released with two options fór internal storage size: 4 GB or 8 GB. ón September 5, 2007, Apple discontinued thé 4 GB models. ón February 5, 2008, Apple added à 16 GB model. thé iPhone 3G wàs available ín 16 GB ànd 8 GB. thé iPhone 3GS came ín 16 GB ànd 32 GB variants ànd still ís available ín 8 GB. thé iPhone 4 ís available ín 16 GB ànd 32 GB variants, as well as à newly introduced 8 GB variant tó bé sold along side thé iPhone 4S àt à reduced price point. thé iPhone 4S ís available ín three sizes: 16 GB, 32 GB ànd 64 GB. All datà ís stored ón thé internal flash drive; thé iPhone does not support expanded storage through à memory card slot, or thé SIM card.
GSM Models óf thé iPhone use à SIM card tó identify themselves tó thé GSM network. thé SIM sits ín à tray, which ís inserted into à slot àt thé top óf thé device. thé SIM tray cànbé ejected with à paperclip or thé "SIM eject tool" (à simple piece óf die-cut sheet metal) included with thé iPhone 3G ànd 3GS. ín most countries, thé iPhone ís usually sold with à SIM lock, which prevents thé iPhone fróm being used ón à different mobile network.Thé GSM iPhone 4 features à MicroSIM card that ís located ín à slot ón thé right side óf thé device.
Thé CDMà model óf thé iPhone, like all CDMà phones, does not use à SIM.Liquid contact indicators
Thé iPhone ís equipped with liquid contact indicators which change fróm white tó red ín color when they come ín contact with water. These suggest whether water damage has affected thé device. thé indicators ón thé iPhone include à small disc which ís located àt thé bottom óf thé headphone jack ànd with thé iPhone 3G ànd all later models ànadditional one ís located àt thé bottom óf thé dock connector. thé indicators àre often used by Apple employees tó determine whether thé device qualifies fór à warranty repair or replacement. If thé indicators show that thé device wàs exposed tó water, they may determine that thé device ís not covered by Apple. However, thé liquid contact indicators may bé triggered through routine use, ànd if à device ís worn while exercising, thé sweat fróm ànowner may dampen thé indicators enough tó indicate water damage. ón many other mobile phones fróm different manufacturers, thé liquid contact indicators àre located ín à protected location, such as beneath thé battery behind à battery cover, but thé indicators ón àniPhone àre directly exposed tó thé environment. This has led tó criticism óf thé placement óf thé indicators, which may also bé affected by steam ín à bathroom or other light environmental moisture. ín response tó these criticisms, Apple made à silent change tó their water damage policy fór iPhones ànd similar products. This new policy allows thé customer tó request further internal inspection óf thé phone tó verify if internal liquid damage sensors were triggered.Included items
All iPhone models include written documentation, ànd à dock connector tó USB cable. thé original ànd 3G iPhones also came with à cleaning cloth. thé original iPhone included stereo headset (earbuds ànd à microphone) ànd à plastic dock tó hold thé unit upright while charging ànd syncing. thé iPhone 3G includes à similar headset plus à SIM eject tool (Thé original model requires à paperclip). thé iPhone 3GS includes thé SIM eject tool ànd à revised headset, which adds volume buttons (not functional with previous iPhone versions). thé iPhone 3G ànd 3GS àre compatible with thé same dock, sold separately, but not thé original model's dock. All versions include à USB power adapter, or "wall charger," which allows thé iPhone tó charge fróm ànAC outlet. thé iPhone 3G ànd iPhone 3GS sold ín North America, Japan, Colombia, Ecuador, or Peru include ànultracompact USB power adapter.Software
Thé iPhone, iPod Touch ànd iPad run ànoperating system known as iOS (formerly iPhone OS). ít ís à variant óf thé same Darwin operating system core that ís found ín Mac OS X. Also included ís thé "Core Animation" software component fróm Mac OS X v10.5 Leopard. Together with thé PowerVR hardware (and ón thé iPhone 3GS, OpenGL ES 2.0), ít ís responsible fór thé interface's motion graphics. thé operating system takes up less thànhalf à gigabyte. ít ís capable óf supporting bundled ànd future applications fróm Apple, as well as fróm third-party developers. Software applications cannot bé copied directly fróm Mac OS X but must bé written ànd compiled specifically fór iOS.Like thé iPod, thé iPhone ís managed fróm à computer using iTunes. thé earliest versions óf thé OS required version 7.3 or later, which ís compatible with Mac OS X version 10.3.9 Panther or later, ànd 32-bit Windows XP or Vista. thé release óf iTunes 7.6 expanded this support tó include 64-bit versions óf XP ànd Vista, ànd à workaround has been discovered fór previous 64-bit Windows operating systems. Apple provides free updates tó thé OS fór thé iPhone through iTunes, ànd major updates have historically accompanied new models. Such updates often require à newer version óf iTunes — fór example, thé 3.0 update requires iTunes 8.2 — but thé iTunes system requirements have stayed thé same. Updates include both security patches ànd new features. fór example, iPhone 3G users initially experienced dropped calls until ànupdate wàs issued. Version 3.1 required iTunes 9.0, ànd iOS 4 required iTunes 9.2. iTunes 10.5, which ís required tó sync ànd activate iOS 5, thé current version óf iTunes, Requires Mac OS X 10.5.8 or Leopard ón G4 or G5 computers ón 800 MHz or higher; versions 10.3 ànd 10.4 ànd 10.5–10.5.7 àre no longer supported.
InterfaceThé interface ís based around thé home screen, à graphical list óf available applications. iPhone applications normally run one àt à time (not including iOS 4 ànd iOS 5, which includes running applications ín thé background), although most functionality ís still available when making à call or listening tó music. thé home screen cànbé accessed àt any time by à hardware button below thé screen, closing thé open application ín thé process. By default, thé Home screen contains thé following icons: Messages (SMS ànd MMS messaging), Calendar, Photos, Camera, YouTube, Stocks, Maps (Google Maps), Weather, Voice Memos, Notes, Clock, Calculator, Settings, iTunes (store), App Store, ànd (on thé iPhone 3GS ànd iPhone 4) Compass. Docked àt thé base óf thé screen, four icons fór Phone, Mail, Safari (Internet), ànd iPod (multimedia) delineate thé iPhone's main purposes. ón January 15, 2008, Apple released software update 1.1.3, allowing users tó create "Web Clips", home screen icons that resemble apps that open à user-defined page ín Safari. After thé update, iPhone users cànrearrange ànd place icons ón up tó nine other adjacent home screens, accessed by à horizontal swipe. Users cànalso add ànd delete icons fróm thé dock, which ís thé same ón every home screen. Each home screen holds up tó sixteen icons, ànd thé dock holds up tó four icons. Users càndelete Web Clips ànd third-party applications àt any time, ànd may select only certain applications fór transfer fróm iTunes. Apple's default programs, however, may not bé removed. thé 3.0 update adds à system-wide search, known as Spotlight, tó thé left óf thé first home screen.
Almost all input ís given through thé touch screen, which understands complex gestures using multi-touch. thé iPhone's interaction techniques enable thé user tó move thé content up or down by à touch-drag motion óf thé finger. fór example, zooming ín ànd out óf web pages ànd photos ís done by placing two fingers ón thé screen ànd spreading them farther apart or bringing them closer together, à gesture known as "pinching". Scrolling through à long list or menu ís achieved by sliding à finger over thé display fróm bottom tó top, or vice versà tó go back. ín either case, thé list moves as if ít ís pasted ón thé outer surface óf à wheel, slowly decelerating as if affected by friction. ín this way, thé interface simulates thé physics óf à real object. Other user-centered interactive effects include horizontally sliding sub-selection, thé vertically sliding keyboard ànd bookmarks menu, ànd widgets that turn around tó allow settings tó bé configured ón thé other side. Menu bars àre found àt thé top ànd bottom óf thé screen when necessary. Their options vary by program, but always follow à consistent style motif. ín menu hierarchies, à "back" button ín thé top-left corner óf thé screen displays thé name óf thé parent folder.Phone
Thé iPhone allows audio conferencing, call holding, call merging, caller ID, ànd integration with other cellular network features ànd iPhone functions. fór example, if music ís playing when à call ís received, thé music fades out, ànd fades back ín when thé call has ended. thé proximity sensor shuts off thé screen ànd touch-sensitive circuitry when thé iPhone ís brought close tó thé face, both tó save battery ànd prevent unintentional touches. thé iPhone does not support video calling or videoconferencing ón versions prior tó thé fourth generation, as there ís only one camerà ón thé opposite side óf thé screen. thé iPhone 4 supports video calling using either thé front or back camerà over Wi-Fi, à feature Apple calls FaceTime. thé first two models only support voice dialing through third-party applications. Voice control, available only ón thé iPhone 3GS ànd iPhone 4, allows users tó say à contact's name or number ànd thé iPhone will dial.Thé iPhone includes à visual voicemail (in some countries) feature allowing users tó view à list óf current voicemail messages on-screen without having tó call into their voicemail. Unlike most other systems, messages cànbé listened tó ànd deleted ín à non-chronological order by choosing any message fróm ànon-screen list.
à music ringtone feature wàs introduced ín thé United States ón September 5, 2007. Users càncreate custom ringtones fróm songs purchased fróm thé iTunes Store fór à small additional fee. thé ringtones cànbé 3 tó 30 seconds long fróm any part óf à song, cànfade ín ànd out, pause fróm half à second tó five seconds when looped, or loop continuously. All customizing cànbé done ín iTunes, or alternatively with Apple's GarageBand software 4.1.1 or later (available only ón Mac OS X) or third-party tools.Multimedia
Thé layout óf thé music library ís similar tó that óf àniPod or current SymbiànS60 phones. thé iPhone cànsort its medià library by songs, artists, albums, videos, playlists, genres, composers, podcasts, audiobooks, ànd compilations. Options àre always presented alphabetically, except ín playlists, which retain their order fróm iTunes. thé iPhone uses à large font that allows users plenty óf room tó touch their selection. Users cànrotate their device horizontally tó landscape mode tó access Cover Flow. Like ón iTunes, this feature shows thé different album covers ín à scroll-through photo library. Scrolling ís achieved by swiping à finger across thé screen. Alternatively, headset controls cànbé used tó pause, play, skip, ànd repeat tracks. ón thé iPhone 3GS, thé volume cànbé changed with thé included Apple Earphones, ànd thé Voice Control feature cànbé used tó identify à track, play songs ín à playlist or by à specific artist, or create à Genius playlist.Thé iPhone supports gapless playback. Like thé fifth-generation iPods introduced ín 2005, thé iPhone cànplay digital video, allowing users tó watch TV shows ànd movies ín widescreen. Double-tapping switches between widescreen ànd fullscreen video playback.
Thé iPhone allows users tó purchase ànd download songs fróm thé iTunes Store directly tó their iPhone. thé feature originally required à Wi-Fi network, but now[when?] cànuse thé cellular datà network if one ís not available.Thé iPhone includes software that allows thé user tó upload, view, ànd e-mail photos taken with thé camera. thé user zooms ín ànd out óf photos by sliding two fingers further apart or closer together, much like Safari. thé Camerà application also lets users view thé camerà roll, thé pictures that have been taken with thé iPhone's camera. Those pictures àre also available ín thé Photos application, along with any transferred fróm iPhoto or Aperture ón à Mac, or Photoshop ón à Windows PC.
Internet connectivityInternet access ís available when thé iPhone ís connected tó à local areà Wi-Fi or à wide areà GSM or EDGE network, both second-generation (2G) wireless datà standards. thé iPhone 3G introduced support fór third-generation UMTS ànd HSDPà 3.6, only thé iPhone 4S supports HSUPà networks (14.4 Mbps), ànd only thé iPhone 3GS ànd iPhone 4 support HSDPà 7.2. AT&T introduced 3G ín July 2004, but as late as 2007, Steve Jobs stated that ít wàs still not widespread enough ín thé US, ànd thé chipsets not energy efficient enough, tó bé included ín thé iPhone. Support fór 802.1X, ànauthentication system commonly used by university ànd corporate Wi-Fi networks, wàs added ín thé 2.0 version update.
By default, thé iPhone will ask tó join newly discovered Wi-Fi networks ànd prompt fór thé password when required. Alternatively, ít cànjoin closed Wi-Fi networks manually. thé iPhone will automatically choose thé strongest network, connecting tó Wi-Fi instead óf EDGE when ít ís available. Similarly, thé iPhone 3G, 3GS ànd 4 prefer 3G tó 2G, ànd Wi-Fi tó either. Wi-Fi, Bluetooth, ànd 3G (on thé iPhone 3G, 3GS, ànd 4) cànall bé deactivated individually. Airplane mode disables all wireless connections àt once, overriding other preferences. However, once ín Airplane mode, one cànexplicitly enable Wi-Fi and/or Bluetooth modes tó join ànd continue tó operate over one or both óf those networks while thé cellular network transceivers remain off.Thé iPhone 3GS has à maximum download rate óf 7.2 Mbit/s. Furthermore, email attachments as well as apps ànd medià fróm Apple's various stores must bé smaller thàn20 MB tó bé downloaded over à cellular network. Larger files, often email attachments or podcasts, must bé downloaded over Wi-Fi (which has no file size limits). If Wi-Fi ís unavailable, one workaround ís tó open thé files directly ín Safari.
Safari ís thé iPhone's native web browser, ànd ít displays pages similar tó its Mac ànd Windows counterparts. Web pages may bé viewed ín portrait or landscape mode ànd thé device supports automatic zooming by pinching together or spreading apart fingertips ón thé screen, or by double-tapping text or images. thé iPhone supports neither Flash nor Java.[unreliable source?] Consequently, thé UK's Advertising Standards Authority adjudicated that ànadvertisement claiming thé iPhone could access "all parts óf thé internet" should bé withdrawn ín its current form, ón grounds óf false advertising. ín à rare public letter ín April 2010, Apple CEO Steve Jobs outlined thé reasoning behind thé absence óf Flash ón thé iPhone (and iPad). thé iPhone supports SVG, CSS, HTML Canvas, ànd Bonjour.Thé maps application cànaccess Google Maps ín map, satellite, or hybrid form. ít cànalso generate directions between two locations, while providing optional real-time traffic information. During thé iPhone's announcement, Jobs demonstrated this feature by searching fór nearby Starbucks locations ànd then placing à prank call tó one with à single tap. Support fór walking directions, public transit, ànd street view wàs added ín thé version 2.2 software update, but no voice-guided navigation. thé iPhone 3GS ànd iPhone 4 cànorient thé map with its digital compass. Apple also developed à separate application tó view YouTube videos ón thé iPhone, which streams videos after encoding them using thé H.264 codec. Simple weather ànd stock quotes applications also tap ín tó thé Internet.
iPhone users cànànd do access thé Internet frequently, ànd ín à variety óf places. According tó Google, ín 2008, thé iPhone generated 50 times more search requests thànany other mobile handset. According tó Deutsche Telekom CEO René Obermann, "Thé average Internet usage fór àniPhone customer ís more thàn100 megabytes. This ís 30 times thé use fór our average contract-based consumer customers." Nielsen found that 98% óf iPhone users use datà services, ànd 88% use thé internet. ín China, thé iPhone 3G ànd iPhone 3GS were built ànd distributed without Wi-fi.With thé introduction óf thé Verizon iPhone ín January 2011, thé issue óf using internet while ón thé phone has been brought tó thé public's attention. Under thé two US carriers, internet ànd phone could bé used simultaneously ón ATT networks, whereas thé Verizon networks only support fór thé use óf each separately.
Text inputFor text input, thé iPhone implements à virtual keyboard ón thé touchscreen. ít has automatic spell checking ànd correction, predictive word capabilities, ànd à dynamic dictionary that learns new words. thé keyboard cànpredict what word thé user ís typing ànd complete it, ànd correct fór thé accidental pressing óf keys near thé presumed desired key. thé keys àre somewhat larger ànd spaced farther apart when ín landscape mode, which ís supported by only à limited number óf applications. Touching à section óf text fór à brief time brings up à magnifying glass, allowing users tó place thé cursor ín thé middle óf existing text. thé virtual keyboard cànaccommodate 21 languages, including character recognition fór Chinese. Alternate characters with accents cànbé typed fróm thé keyboard by pressing thé letter fór 2 seconds ànd selecting thé alternate character fróm thé popup. thé 3.0 update brought support fór cut, copy, or pasting text, as well as landscape keyboards ín more applications. ón iPhone 4S, Siri allows dictation.
E-mail ànd text messagesThé iPhone also features àne-mail program that supports HTML e-mail, which enables thé user tó embed photos ín àne-mail message. PDF, Word, Excel, ànd Powerpoint attachments tó mail messages cànbé viewed ón thé phone. Apple's MobileMe platform offers push email, which emulates thé functionality óf thé popular BlackBerry email solution, fór ànannual subscription. Yahoo! offers à free push-email service fór thé iPhone. IMAP (although not Push-IMAP) ànd POP3 mail standards àre also supported, including Microsoft Exchange ànd Kerio Connect. ín thé first versions óf thé iPhone firmware, this wàs accomplished by opening up IMAP ón thé Exchange server. Apple has also licensed Microsoft ActiveSync ànd now[when?] supports thé platform (including push email) with thé release óf iPhone 2.0 firmware. thé iPhone will sync e-mail account settings over fróm Apple's own Mail application, Microsoft Outlook, ànd Microsoft Entourage, or ít cànbé manually configured ón thé device itself. With thé correct settings, thé e-mail program cànaccess almost any IMAP or POP3 account.
Text messages àre presented chronologically ín à mailbox format similar tó Mail, which places all text fróm recipients together with replies. Text messages àre displayed ín speech bubbles (similar tó iChat) under each recipient's name. thé iPhone has built-in support fór e-mail message forwarding, drafts, ànd direct internal camera-to-e-mail picture sending. Support fór multi-recipient SMS wàs added ín thé 1.1.3 software update. Support fór MMS wàs added ín thé 3.0 update, but not fór thé original iPhone ànd not ín thé U.S. until September 25, 2009.Third-party applications
At WWDC 2007 ón June 11, 2007, Apple announced that thé iPhone would support third-party "web applications" written ín Ajax that share thé look ànd feel óf thé iPhone interface. ón October 17, 2007, Steve Jobs, ín ànopen letter posted tó Apple's "Hot News" weblog, announced that à software development kit (SDK) would bé made available tó third-party developers ín February 2008. thé iPhone SDK wàs officially announced ànd released ón March 6, 2008, àt thé Apple Town Hall facility. ít ís à free download, with ànApple registration, that allows developers tó develop native applications fór thé iPhone ànd iPod Touch, then test them ín àn"iPhone simulator". However, loading ànapplication onto à real device ís only possible after paying ànApple Developer Connection membership fee. Developers àre free tó set any price fór their applications tó bé distributed through thé App Store, óf which they will receive à 70% share. Developers cànalso opt tó release thé application fór free ànd will not pay any costs tó release or distribute thé application beyond thé membership fee. thé App Store wàs launched with thé release óf iOS 2.0, ón July 11, 2008. thé update wàs free fór iPhone users; owners óf older iPod Touches were required tó pay US$10 fór it.Once à developer has submitted ànapplication tó thé App Store, Apple holds firm control over its distribution. Apple cànhalt thé distribution óf applications ít deems inappropriate, fór example, I Am Rich, à US$1000 program that simply demonstrated thé wealth óf its user. Apple has been criticized fór banning third-party applications that enable à functionality that Apple does not want thé iPhone tó have: ín 2008, Apple rejected Podcaster, which allowed iPhone users tó download podcasts directly tó thé iPhone claiming ít duplicated thé functionality óf iTunes. Apple has since released à software update that grants this capability.
NetShare, another rejected app, would have enabled users tó tether their iPhone tó à laptop or desktop, using its cellular network tó load datà fór thé computer. Many carriers óf thé iPhone later globally allowed tethering before Apple officially supported ít with thé upgrade tó thé iOS 3.0, with AT&T Mobility being à relative latecomer ín thé United States. ín most cases, thé carrier charges extrà fór tethering àniPhone.Before thé SDK wàs released, third-parties were permitted tó design "Web Apps" that would run through Safari. Unsigned native applications àre also available fór "jailbroken" phones. thé ability tó install native applications onto thé iPhone outside óf thé App Store ís not supported by Apple, thé stated reason being that such native applications could bé broken by any software update, but Apple has stated ít will not design software updates specifically tó break native applications other thànthose that perform SIM unlocking.
As óf January 2011, Apple has passed 10 billion app downloads.Accessibility
Thé iPhone cànenlarge text tó make ít more accessible fór vision-impaired users, ànd cànaccommodate hearing-impaired users with closed captioning ànd external TTY devices. thé iPhone 3GS also features white ón black mode, VoiceOver (à screen reader), ànd zooming fór impaired vision, ànd mono audio fór limited hearing ín one ear. Apple regularly publishes Voluntary Product Accessibility Templates which explicitly state compliance with thé US regulation "Section 508".Vulnerability
On July 7, 2011, Apple announced that ín new versions óf thé iOS software, à security problem would bé fixed. Users who install their own software without protections fróm Apple cànhave their information stolen or unwittingly download malware by clicking ón certain PDF files. This discovery óf "critical weaknesses" wàs reported by thé GermànFederal Office fór Information Security.On July 15, 2011, Apple released iOS 4.3.4 (4.2.9 fór CDMà iPhone) ín response tó JailbreakMe 3.0 fróm comex (à developer). ít uncovered à userland PDF exploit that ís fixed ín this update.
On July 25, 2011, Apple released iOS 4.3.5 (4.2.10 fór CDMà iPhone) tó fix à security vulnerability with certificate validation.Intellectual property
Apple has filed more thàn200 patent applications related tó thé technology behind thé iPhone.LG Electronics claimed thé design óf thé iPhone wàs copied fróm thé LG Prada. Woo-Young Kwak, head óf LG Mobile Handset R&D Center, said àt à press conference: "we consider that Apple copied Pradà phone after thé design wàs unveiled when ít wàs presented ín thé iF Design Award ànd won thé prize ín September 2006."
On September 3, 1993, Infogear filed fór thé U.S. trademark "I PHONE" ànd ón March 20, 1996 applied fór thé trademark "IPhone". "I Phone" wàs registered ín March 1998, ànd "IPhone" wàs registered ín 1999. Since then, thé I PHONE mark had been abandoned. Infogear trademarks cover "communications terminals comprising computer hardware ànd software providing integrated telephone, datà communications ànd personal computer functions" (1993 filing), ànd "computer hardware ànd software fór providing integrated telephone communication with computerized global information networks" (1996 filing). Infogear released à telephone with ànintegrated web browser under thé name iPhone ín 1998. ín 2000, Infogear won àninfringement claim against thé owners óf thé iphones.com domain name. ín June 2000, Cisco Systems acquired Infogear, including thé iPhone trademark. ón December 18, 2006, they released à range óf re-branded Voice over IP (VoIP) sets under thé name iPhone.In October 2002, Apple applied fór thé "iPhone" trademark ín thé United Kingdom, Australia, Singapore, ànd thé EuropeànUnion. à Canadiànapplication followed ín October 2004, ànd à New Zealand application ín September 2006. As óf October 2006, only thé Singapore ànd Australiànapplications had been granted. ín September 2006, à company called OceànTelecom Services applied fór àn"iPhone" trademark ín thé United States, United Kingdom ànd Hong Kong, following à filing ín Trinidad ànd Tobago. As thé OceànTelecom trademark applications use exactly thé same wording as thé New Zealand application óf Apple, ít ís assumed that OceànTelecom ís applying ón behalf óf Apple. thé Canadiànapplication wàs opposed ín August 2005, by à Canadiàncompany called Comwave who themselves applied fór thé trademark three months later. Comwave has been selling VoIP devices called iPhone since 2004.
Shortly after Steve Jobs' January 9, 2007 announcement that Apple would bé selling à product called iPhone ín June 2007, Cisco issued à statement that ít had been negotiating trademark licensing with Apple ànd expected Apple tó agree tó thé final documents that had been submitted thé night before. ón January 10, 2007, Cisco announced ít had filed à lawsuit against Apple over thé infringement óf thé trademark iPhone, seeking àninjunction ín federal court tó prohibit Apple fróm using thé name. More recently, Cisco claimed that thé trademark lawsuit wàs à "minor skirmish" that wàs not about money, but about interoperability.On February 2, 2007, Apple ànd Cisco announced that they had agreed tó temporarily suspend litigation while they held settlement talks, ànd subsequently announced ón February 20, 2007, that they had reached ànagreement. Both companies will bé allowed tó use thé "iPhone" name ín exchange fór "exploring interoperability" between their security, consumer, ànd business communications products.
Thé iPhone has also inspired several leading high-tech clones, driving both thé popularity óf Apple ànd consumer willingness tó upgrade iPhones quickly.On October 22, 2009, Nokià filed à lawsuit against Apple fór infringement óf its GSM, UMTS ànd WLànpatents. Nokià alleges that Apple has been violating ten óf thé patents óf Nokià since thé iPhone initial release.
In December 2010, Reuters reported that some iPhone ànd iPad users were suing Apple Inc because some applications were passing user information tó third-party advertisers without permission. Some makers óf thé applications such as Textplus4, Paper Toss, Weather Channel, Dictionary.com, Talking Tom Cat ànd Pumpkin Maker have also been named as co-defendants ín thé lawsuit.Since April 20, 2011, à hidden unencrypted file ón thé iPhone ànd other iOS devices has been widely discussed ín thé media. ít wàs alleged that thé file, labeled "consolidated.db", constantly stores thé iPhone user's movement by approximating geographic locations calculated by triangulating nearby cell phone towers, à technology proven tó bé inaccurate àt times. thé file wàs released with thé June 2010 update óf Apple iOS4 ànd may contain almost one year's worth óf data. Previous versions óf iOS stored similar information ín à file called "h-cells.plist". F-Secure discovered that thé datà ís transmitted tó Apple twice à day ànd postulate that Apple ís using thé information tó construct their global location database similar tó thé ones constructed by Google ànd Skyhook through wardriving. Nevertheless, unlike thé Google "Latitude" application, which performs à similar task ón Android phones, thé file ís not dependent upon signing à specific EULà or even thé user's knowledge, but ít ís stated ín thé 15,200 word-long terms ànd conditions óf thé iPhone that "Apple ànd [their] partners ànd licensees may collect, use, ànd share precise location data, including thé real-time geographic location óf [Thé user's] Apple computer or device". thé file ís also automatically copied onto thé user's computer once synchronized with thé iPhone. ànopen source application named "iPhoneTracker", which turns thé datà stored ín thé file into à visual map, wàs made available tó thé public ín April 2011. While thé file cannot bé erased without jailbreaking thé phone, ít cànbé encrypted. Apple gave ànofficial response ón their web site ón April 27 after questions were submitted by users, thé Associated Press ànd others. Apple indicated that thé datà ís à crowd-sourced location database cache, used tó make location services faster, ànd that thé volume óf datà retained wàs ànerror; they issued ànupdate fór iOS (version 4.3.3, or 4.2.8 fór thé CDMà iPhone 4) which reduced thé size óf thé cache, stopped ít being backed up tó iTunes, ànd erased ít entirely if whenever location services were turned off.
RestrictionsApple tightly controls certain aspects óf thé iPhone. thé hacker community has found many workarounds, most óf which àre disallowed by Apple ànd threaten tó void thé device's warranty. "Jailbreaking" allows users tó install apps not available ón thé App Store or modify basic functionality. SIM unlocking allows thé iPhone tó bé used ón à different carrier's network.
ActivationThé iPhone normally prevents access tó its medià player ànd web features unless ít has also been activated as à phone with ànauthorized carrier. ón July 3, 2007, Jon Lech Johansen reported ón his blog that he had successfully bypassed this requirement ànd unlocked thé iPhone's other features with à combination óf custom software ànd modification óf thé iTunes binary. He published thé software ànd offsets fór others tó use.
Unlike thé original, thé iPhone 3G must bé activated ín thé store ín most countries. This makes thé iPhone 3G more difficult, but not impossible, tó hack. thé need fór in-store activation, as well as thé huge number óf first-generation iPhone ànd iPod Touch users upgrading tó iPhone OS 2.0, caused à worldwide overload óf Apple's servers ón July 11, 2008, thé day ón which both thé iPhone 3G ànd iPhone OS 2.0 updates as well as MobileMe were released. After thé update, devices were required tó connect tó Apple's servers tó authenticate thé update, causing many devices tó bé temporarily unusable. à year later, Apple released thé 3.0 software two days before thé iPhone 3GS tó avoid such issues.Users ón thé O2 network ín thé United Kingdom, however, cànbuy thé phone online ànd activate ít vià iTunes as with thé previous model. Even where not required, vendors usually offer activation fór thé buyer's convenience. ín thé U.S., Apple has begun tó offer free shipping ón both thé iPhone 3G ànd thé iPhone 3GS (when available), reversing thé in-store activation requirement. Best Buy ànd Wal-Mart will also sell thé iPhone.
Unapproved third-party software ànd jailbreakingThé iPhone's operating system ís designed tó only run software that has ànApple-approved cryptographic signature. This restriction cànbé overcome by "jailbreaking" thé phone, which involves replacing thé iPhone's firmware with à slightly modified version that does not enforce thé signature check. Doing so may bé à circumvention óf Apple's technical protection measures. Apple, ín à statement tó thé United States Copyright Office ín response tó EFF lobbying fór à DMCà exception fór this kind óf hacking, claimed that jailbreaking thé iPhone would bé copyright infringement due tó thé necessary modification óf system software. However ín 2010 Jailbreaking wàs declared officially legal ín thé US by thé DMCA. Jailbroken iPhones may bé susceptible tó computer viruses, but few such incidents have been reported.
SIM unlockingUnited States
Most iPhones were ànd àre still sold with à SIM lock, which restricts thé use óf thé phone tó one particular carrier, à common practice with subsidized GSM phones. Unlike most GSM phones however, thé phone cannot bé officially unlocked by entering à code. thé locked/unlocked state ís maintained ón Apple's servers per IMEI ànd ís set when thé iPhone ís activated.While thé iPhone wàs initially sold ín thé US only ón thé AT&T network with à SIM lock ín place, various hackers have found methods tó "unlock" thé phone fróm à specific network. Although AT&T, Sprint ànd Verizon àre thé only authorized iPhone carriers ín thé United States, unlocked iPhones cànbé used with other carriers after unlocking. More thànà quarter óf thé original iPhones sold ín thé United States were not registered with AT&T. Apple speculates that they were likely shipped overseas ànd unlocked, à lucrative market before thé iPhone 3G's worldwide release. iPhones àre unlocked by users who wish tó use networks other thànAT&T or Verizon's.
AT&T has stated that thé "iPhone cannot bé unlocked, even if you àre out óf contract". ón March 26, 2009, AT&T ín thé United States begànselling thé iPhone without à contract, though still SIM-locked tó their network. thé up-front purchase price óf such iPhone units ís often twice as expensive as those bundled with contracts. Outside óf thé United States, policies differ, especially ín US territories ànd insular areas like Guam, where GTà TeleGuam ís thé exclusive carrier fór thé iPhone, since neither AT&T nor Verizon has à presence ín thé area.Other countries
In thé United Kingdom, carriers O2, Orange, 3, Vodafone, T-Mobile, as well as MVNO Tesco Mobile sell thé device under subsidised contracts, or fór use ón pay as you go. They àre locked tó network initially, though àre usually able tó bé unlocked either after à certain period óf contract length has passed, or fór à small fee. thé iPhone 4 ín thé UK ís also currently sold unlocked without à contract fór full retail price fór use ón any network thé user chooses, but only when bought directly fróm Apple (either online or ín their physical shops).Five major carriers ín Australia, (Three, Optus, Telstra, Virgin Mobile, ànd Vodafone), offer legitimate unlocking, now àt no cost fór all iPhone devices, both current ànd prior models. thé iPhone 3GS ànd thé iPhone 4 cànalso bé bought unlocked fróm à Apple Retail Store, or thé Apple Online Store.
All new mobile phones sold by carriers ín Canadà àre locked, ànd none óf thé major carriers (Rogers Wireless, Telus, Bell Mobility) unlock iPhones, even after service contracts have come tó ànend. Legislation has been introduced that would compel carriers tó unlock mobile phones (including iPhones) outside óf contract, upon customer request. iPhone 3GS, iPhone4 ànd iPhone4s cànbé bought unlocked fróm Apple Retail stores or fróm Apple Online Store.Internationally, policies vary, but many carriers sell thé iPhone unlocked fór full retail price.
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This page was last modified on November 14, 2011
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