What Is ISDN?
Beginning of paper
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 te ....
Middle of paper
.... pulses with
a limited number of discrete voltage levels. [Hopkins]
The modem was certainly a big breakthrough in computer technology. It allowed
computers to communicate with each other by converting their digital
communications into an analog format to travel through the public phone network.
However, there is a limit to the amount of information that a common analog
telephone line can hold. Currently, it is about 28.8 kbit/s. [Hopkins] ISDN
allows multiple digital channels to be operated si ....
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