APPLICATIONS OF IPHONE 4

                                                  

In addition to gestures, you can use your voice to play music and make a phone call. Just press and hold the home button, listen for the audio prompt, and speak the name of the artist, album, or playlist you want to hear. You can pause, play, change tracks, even shuffle your music. When you want to make a call, speak the name or telephone number of the person you want to call. iPhone 4 and iPhone 3GS understand 21 different languages.

While many iPhone applications let you zoom in and out specific elements such as images in Mail, or web page columns in Safari, Zoom lets you magnify the entire screen of any application you’re using to help you see what’s on the display. Zoom can be enabled on iPhone 4 and iPhone 3GS using iTunes when you’re setting up iPhone, for yourself or someone else, or later, using the Accessibility menu in the Settings application on iPhone.

Zoom works everywhere, including the Home, Unlock, and Spotlight screens—even with applications you purchase from the App store. Two iPhones. The iPhone in the background is displaying the Accessibility Settings screen. The iPhone in the foreground shows the Accessibility Settings screen in reverse video.
                                       
A simple double-tap with three fingers instantly zooms in and out 200% and you can double-tap and drag three fingers to dynamically adjust the magnification between 100% and 500%. Even when zoomed, you can continue using all of the familiar flick, pinch, tap and other iPhone gestures to run your favorite applications. Zoom can also be used with white-on-black (reverse video) and speak auto-text.

For those who need or prefer higher contrast, iPhone 4 and iPhone 3GS provide an option to change the display to White On Black. This reverse video effect works in all applications including the Home, Unlock, and Spotlight screens and can be used with Zoom and VoiceOver.

When typing, iPhone suggests a word before you finish typing it or a correction when a word is misspelled. Speak Auto-text speaks these suggestions so you can hear them when they’re presented. When zoomed, for example, the suggestion might not be visible on screen, but you can hear and accept it without seeing it. If you’re using VoiceOver, you won’t have to interrupt your typing and touch the suggestion to hear it. Speak Auto-text can be enabled even when you’re not using VoiceOver or Zoom.

iPhone includes a few, easily discernible physical buttons used to control the phone: the Sleep/Wake button, located on the top edge; the Ring/Silent switch and volume-control buttons, located on the upper-left edge; and the Home button, centered below the display.

Enjoy hands-free communication using the built-in speakerphone, which you can also use to listen to Visual Voicemail, music, podcasts, and video. Turn the ringer on, and iPhone delivers both audible and visual alerts. You can activate alerts for phone calls, text messages, incoming and sent mail, and calendar events. iPhone also offers an audio option confirming keyboard clicks. You can even set incoming calls to display a full-screen image or photo of the caller. In silent mode, iPhone vibrates instead of playing a tone. To ensure that you never miss a notification, you can also have iPhone vibrate and play an audio alert.

You can assign distinctive ringtones to individuals in your contacts list, using the ringtone as an audible caller ID. Visit the iTunes Store to create, purchase, and download additional ringtones of your favorite songs (sold separately).

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