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ISDN or Integrated Services Digital Network is a circuit-switched telephone network
system, designed to allow digital transmission of voice and data.
ISDN services will not only enhance your telephone service with clear digital calls,
it can give your business a competitive edge by making it more productive.
Upgrading existing PSTN lines to ISDN you can save time and money by being able
to transmit data, video, and image economically and at speeds much faster than analogue
modems. Also, in most cases you can still keep your existing telephone number.
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