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When you connect to the Internet, you might connect through a regular modem, through a local-area network connection in your office, through a cable modem or through a digital subscriber line (DSL) connection. DSL is a very high-speed connection that uses the same wires as a regular telephone line.
Here are some advantages of DSL:
- You can leave your Internet connection open and still use the phone line for voice calls.
- The speed is much higher than a regular modem
- DSL doesn't necessarily require new wiring; it can use the phone line you already have.
- The company that offers DSL will usually provide the modem as part of the installation.
But there are disadvantages:
- A DSL connection works better when you are closer to the provider's central office. The farther away you get from the central office, the weaker the signal becomes.
- The connection is faster for receiving data than it is for sending data over the Internet.
- The service is not available everywhere.
To understand DSL, you first need to know a couple of things about a normal telephone line -- the kind that telephone professionals call POTS, for Plain Old Telephone Service. One of the ways that POTS makes the most of the telephone company's wires and equipment is by limiting the frequencies that the switches, telephones and other equipment will carry. Human voices, speaking in normal conversational tones, can be carried in a frequency range of 0 to 3,400 Hertz. This range of frequencies is tiny. For example, compare this to the range of most stereo speakers, which cover from roughly 20 Hertz to 20,000 Hertz. And the wires themselves have the potential to handle frequencies up to several million Hertz in most cases.
The use of such a small portion of the wire's total bandwidth is historical -- remember that the telephone system has been in place, using a pair of copper wires to each home, for about a century. By limiting the frequencies carried over the lines, the telephone system can pack lots of wires into a very small space without worrying about interference between lines. Modern equipment that sends digital rather than analog data can safely use much more of the telephone line's capacity. DSL does just that.
We're here 24/7 as your remote ADSL-DSL Setup help. Just call one of our Personal Technology Experts and we’ll handle everything. The entire process is easy.After you call, one of our Tech Experts will start remotely scanning your computer right away. By using only your Internet connection, we can fix just about any problem you may have—big or small. We're here to help you get the most from your technology.Also, by calling Support.com, there’s no need to go out to a local support center or invite strangers to your home. You’re free to just sit back and relax after we start.
Support.com offers the top-notch support you’ve been looking for. We've been helping people solve their computer problems since 1998.
All of our Personal Technology Experts are full-time employees living right here in North America. Before they can help you, they must first earn their title by passing a series of incredibly rigorous tests. By doing this, Support.com assures you that you’re getting the best customer support possible.
From driver problems to stubborn viruses to a slow computer, if you have a problem with your laptop, desktop or peripheral device, don't wait another minute—Support.com can help you right now.
Call Support.com and get the Dell technical support you need.
