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Integrated Services
Digital Network (ISDN), originally "Integriertes Sprach- und
Datennetz" (German for "Integrated Speech and Data Net"), is a
circuit-switched telephone network system, designed to allow digital
transmission of voice and data over ordinary telephone copper wires,
resulting in better voice quality than an analog phone. It offers
circuit-switched connections (for either voice or data) in increments of
64 kbit/s. One of the major use cases is Internet access, where ISDN
typically provides a maximum of 128 kbit/s (which cannot be considered
to be a broadband speed). More broadly, ISDN is a set of protocols for
establishing and breaking circuit switched connections, and for advanced
call features for the user.
Integrated Services refers to ISDN's ability to deliver
at minimum two simultaneous connections, in any combination of data,
voice, video, and fax, over a single line. Multiple devices can be
attached to the line, and used as needed. That means an ISDN line can
take care of most people's complete communications needs at a much
higher transmission rate, without forcing the purchase of multiple
analog phone lines.
If you have further questions please do not hesitate to
call our office.
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