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What Is ISDN?
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ISDN, which stands for integrated services digital network, is a system of
digitizing phone networks which has been in the works for over a decade. This
system allows audio, video, and text data to be transmitted simultaneously
across the world using end-to-end digital connectivity.
The original telephone system used analog signals to transmit a s ....
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....rough the same
regular phone jack in a home or office. The change comes about when the
telephone company's switches are upgraded to handle digital calls. Therefore,
the same wiring can be used, but a different signal is transmitted across the
line. [Hopkins] Previously, it was necessary to have a phone line for each
device you wished to use simulta.... |
| Word count: 5167 |
Page count: 19 |
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