CHAPTER 1Voice Channels

Mobile devices and smart phones are obviously not just for talking. You can use them to check e-mail; listen to music; play games; watch videos; download and display TV shows; browse the web; schedule and organize your calendar; get voice-guided directions; and take and send photos and videos. The cell phone is a watch, an alarm clock, a stopwatch, a calculator, an address book, a wallet to pay for bar-coded purchases, and a portal to access thousands of apps. It’s pretty much up to the human imagination as to what one can do with a mobile device today, let alone in the future!

“A self-defense expert taught me that if people are acting suspiciously around me, I should hold up my phone toward them and say they’re live on ...

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