Telephone Technology

We'll look at the different telephone technologies that enable us to easily communicate. Learn about Skype and Vonage, caller ID, fiber optics and more.


How MagicJack Works

You may have seen ads for the MagicJack on late night TV or seen them displayed in retail outlets. Can the MagicJack's promise of low-cost phone service be for real?

What should I do if the home button on my iPhone stops working?

Whether it’s slow to respond or flat-out broken, a failing home button is a major iPhone annoyance. Will you have to pay to have it serviced or replaced, or can you address the problem on your own?

How do I take a screen capture on my smartphone?

There are lots of reasons why you might want to snag a screen capture of your smartphone: an epic texting conversation that you want to immortalize, for example. But do you know how to do it?

What's the best e-reader app to use on a smartphone?

Why buy an expensive e-reader when you can e-read any book you want on your phone? Go ahead and download one of these e-reader apps, then devour a juicy novel.

Why are 'unlocked' phones more expensive than locked ones?

In the past, if you wanted to own an iPhone, AT&T was the service provider you had to live with. Now you can get an "unlocked" iPhone and select any carrier you choose -- but it'll cost you.

Does keeping texts on my phone slow its performance?

Is your texting app taking a little longer to open, not responding well to typing or won't send texts quickly? You might have way too many old text messages hanging around.

Do smartphone covers really protect phones from damage?

Protecting a smartphone with a case is a no-brainer for a lot of phone owners. Others, however, don't think smartphone case protection is all it's cracked up to be.

If I put my smartphone in an armband or pocket while I run, can it overheat?

Smartphones can get a little hot when they're engaging in some heavy activity. But can that and their owners' exercise push them over the edge and make them overheat?

How secure is NFC tech?

Sharing photos or business cards by tapping phones together seems pretty nifty, but is this tech really safe? Find out in this article.

How Near Field Communication Works

Fed up with carrying a wallet full of cards and a full ring of keys? Before long, you might be able to keep all of that stuff in your phone. How is it possible, and is your information safe in your phone?