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What is Understanding Integrated Services Digital Network about?
ISDN is a set of communication protocols that allows telephone networks to carry voice, data, and other media over digital lines. It involves digitizing the telephone network. ISDN devices include terminals, terminal adapters, network-termination devices, and line/exchange-termination equipment. ISDN uses Basic Rate Interface (BRI) or Primary Rate Interface (PRI) services. It operates on the bottom three layers of the OSI model, with different specifications for the physical, data link, and network layers t
- Author
- vahidinkorman
- Language
- EN