The option of getting internet through the telephone line is very convenient because of the fact you don't need to have new wiring or costly equipment installed. Digital Subscriber Line (DSL), now gives you all the benefits of using your pre-established phone network to provide you high speed broadband with the option to make and receive phone calls while you are online. Prior to DSL internet, you could use only one service at a time and you had to wait for your modem to dialup before you could connect.
DSL gives you an internet connection that is always "on", even when you are using your phone line to make a telephone call. Due to the low frequency of the "analog" data that travels through the copper phone lines and converts into the sounds you hear when the person on the call with you is talking, there is an entire high frequency range available on the line that can be used for broadband. The high frequency space can be used to send digital data through the copper lines that converts to the internet service you enjoy.
DSL is a distance-sensitive internet technology and that means that you will get the best service within three miles of the central office. However you have the option of subscribing to various levels of service to suit your needs. Try the Highspeedinternet.com Internet speed test to see how your current internet compares to DSL.
Now with Broadband DSL you can have all the benefits of high speed broadband using the telephone lines that are already in place in your home or office.
There are currently several high speed internet digital subscriber line (DSL) internet service providers (ISPs) throughout the United States. The number of DSL ISPs has grown rapidly as the demand for broadband internet connectivity has increased due to consumer frustration with the speed limitations of dial-up connections. It has also developed as a result of people’s realization that they cannot fully use the many offerings on the internet without faster speeds.
DSL technology utilizes the existing telephone line network infrastructure to connect the consumer to the internet. Using telephone lines, DSL technology divides the lines into high and low-frequencies. The high-frequency bands are used to transmit internet communications such as data, voice, and video, and the low-frequency bands are used for regular telephone tasks, such as making and receiving calls. Unlike the older dial-up technology, which also uses existing phone lines, DSL allows the user to simultaneously be online and talking on the phone, using the same phone line.
Like most broadband, high speed internet connections, there is a discrepancy in connection speeds with DSL. The speed of the download or downstream connection, which is from the internet to the consumer’s computer, is faster than the upload or upstream connection, which is from the consumer’s computer to the internet.
For all of the DSL ISPs, the consumer will need to have a phone line running into their residence and a DSL modem. The consumer may also need to install specialized phone jacks if they are planning on using the same phone line for both telephone operations and as an internet connection. Some ISPs allow the consumer to perform a self-installation of the required devices and others recommend professional installation.

