WHAT'S INSIDE: PHONES

Telecommunications devices, including cell phones, satellite radio or Voice over IP, connect us to one another and to the world of information at our fingertips. Learn all about the technologies we depend upon for efficient communication.
  • Cell Phones
  • Cell Phone Apps
  • Home Telephones
  • Telephone Technology
  • Wireless

FEATURED: PHONES

Although they can't do much damage at present, in the future cell-phone viruses may be as debilitating as computer viruses. How do cell-phone viruses spread? And how can you protect your phone?

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How does a long-distance call work?

When you make a long-distance call, there is an amazing amount of technology working to make your call happen. To understand the computerized systems used today, it's helpful to go back in time and look at how long-distance calls were first routed.

Inside a Cell Phone

On a "complexity per cubic inch" scale, cell phones are some of the most intricate devices people play with on a daily basis. Take a look inside a cell phone.

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