to another Bluetooth device such as a headset. When it’s gray, Bluetooth is on but no device is connected. Some Bluetooth-enabled headsets add their own battery charge indicator to the Status bar, so you know when you need to charge your headset.
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Call Forwarding: On GSM models (an unlocked Apple iPhone or an AT&T iPhone, refer to the “Considering iPhone Carriers and Configurations” section in Book I, Chapter 1), appears when you’ve forwarded your calls to another phone number. The call forwarding settings are explained in Book II, Chapter 1.
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Cell Signal: Indicates the strength of the cellular signal your iPhone is connected to. If you have no filled-in circles or just one, the signal is weak – more solid circles, stronger signal. No Service appears when iPhone is unable to pick up a signal from your cellular provider. If Airplane Mode is turned on, you see the airplane icon instead of the cell signal circles. If your carrier offers Wi-Fi calling, you’ve activated it as an option with your carrier, and you turn it on in the Phone section of the Settings app, you see carrier name Wi-Fi.
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Do Not Disturb: Reminds you that you’ve activated the Do Not Disturb feature.
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EDGE (E): Appears when iPhone is connected to your cellular provider’s EDGE data network for accessing the Internet. GSM models support EDGE networks. Read more about Internet access later in this chapter.
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GPRS/1xRTT: GSM models use the GPRS (General Packet Radio Service) network and CDMA models use the 1xRTT (1x Radio Transmission Technology) network to access the Internet when those networks are available. Read more about Internet access in the “Making Connections” section, later in this chapter.
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Location Services: When you see this icon, an app, such as Maps or Reminders, is tracking your current location coordinates in order to provide you with nearby information or other services.
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LTE: Lets you know you have an LTE cellular connection; this icon may be 4G, depending on your carrier.
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Network Activity: Spins when iPhone is accessing a cellular or Wi-Fi network for any app that uses the Internet, such as Safari or the App Store. It also appears when iPhone is syncing iCloud information over the air, or sometimes when an app is performing other data-related activities.
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Personal Hotspot: This icon is active when you’ve connected to another iPhone or a 3G/4G iPad that is providing a Personal Hotspot.
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Orientation Lock: This reminds you that you’ve turned off the landscape view feature. You can turn your iPhone every which way, but the screen remains in portrait position – unless you open an app that only works in landscape position, such as some games or videos.
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Syncing: Indicates that your iPhone is syncing with iTunes or iCloud.
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TTY: Indicates your iPhone is configured to work with a Teletype (TTY) machine.
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UMTS/EV-DO (3G): Indicates when GSM models are connected to the UMTS (Universal Mobile Telecommunications System) network, or CDMA models are connected to the EV-DO (Evolution-Data Optimized) network to access the Internet when those networks are available. Read more about Internet access in the “Making Connections” section later in this chapter.
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VPN: Indicates iPhone is connected to a VPN (Virtual Private Network).
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Wi-Fi: Indicates iPhone is connected to a Wi-Fi network. The more bars, the merrier – er, we mean, the more stable – the connection. Read more about wireless connections in the “Making Connections” section of this chapter.
Understanding Status bar colors
The text of the Status bar may be black or white, whichever shows up better on the background of the app or Home screen. In some situations, however, the background color changes behind the status bar when you’re engaged in one activity, such as a phone call, and begin another activity, such as opening Notes to jot down something your caller is telling you. These are what the different colors mean:
✔ Green: A phone or FaceTime call is active but you’re doing something else. You can continue to converse while you do the other activity; it’s helpful to put the call on speakerphone before opening another app.
✔ Red: Voice Memos or another recording app is recording while you’re doing other things. Tap the red bar to return to Voice Memos, or the recording app, and stop recording.
✔ Blue: Your iPhone is set up as a Personal Hotspot and its Internet connection is being accessed by another device.
Noticing notifications and badges
When iPhone wants to get your attention and tell you something, it communicates via badges and notification alerts (see Figure 2-4) and banners. These are different from alerts, alarms, and reminders that you set on your iPhone in that they contain information iPhone wants to give you.
Figure 2-4: Notification alerts often have buttons that give you a choice of actions to take.
A badge appears as a white number inside a red circle in the corner of certain app icons, such as Mail and Podcasts (refer to Figure 2-3). The number indicates how many unread messages or status updates await you in those apps.
Alerts require a response and appear when you want to do something but iPhone needs something else to happen before it can complete the task. Alerts appear in rectangular boxes in the middle of the screen and typically display buttons you can tap to respond to with a certain action. In the example in Figure 2-4, for instance, you have the choice o f acknowledging the alert by tapping Cancel, or by tapping Disable to turn off Airplane Mode.
Banners appear when you’re doing one thing – say, reading an article on
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