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Taking Your iPhone to the Max, iOS 5 Edition by Erica Sadun, Steve Sande, Michael Grothaus

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Chapter 4

Placing Calls with iPhone

iPhones are versatile devices. They can surf the Web, check the latest stock prices, request a weather report, play thousands of games, and map out directions. But at its core, the iPhone remains a cell phone and that means that making phone calls is its primary function. In this chapter, you'll learn the essential things you need to know in order to maximize your iPhone use for placing and receiving calls. You'll discover ways you can get up to speed and make the most of your iPhone as a cell phone.

Checking the Cell Network Indicator

The bars at the top-left corner of your iPhone screen indicate how strong a signal you're receiving from the local cellular network. Five bars indicate the strongest signal. ...

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