What Is Broadband ISDN?
ISDN stands for "Integrated Services Digital Network," a type of Internet and phone connection providing a variety of services. It originally worked using the same physical network as traditional phone and Internet data. Broadband ISDN describes a specific variety of ISDN connections.
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ISDN Basics
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ISDN uses a completely digital connection, unlike older analog phone lines, and thus transmits a signal without any interference. ISDN provides a universal set of protocols for handling all the connection needs of modern technology. The connection works with phones, faxes, Internet transmissions and any other service that accepts digital input.
Narrowband ISDN
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The ISDN acronym usually refers to the older, "narrowband" version of the technology. Narrowband ISDN connects to phones and computers using traditional copper phone lines and has a limited transfer rate, commonly 56 kilobits per second, 64 kilobits per second or 144 kilobits per second.
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B-ISDN
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Broadband ISDN, commonly notated as "B-ISDN," requires a fiber-optic connection to run. It conforms to the same basic standards as ISDN, but allows much faster connections and will not function on traditional copper phone lines. While similar in intent, B-ISDN represents a complete overhaul of the connection technology.
Use
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Traditional ISDN connections do not adequately service the bandwidth needs of video streaming or video conferencing, two increasingly popular services. ISDN remains serviceable for voice communication and lower-impact Internet use.
Coverage
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Most homes and businesses do not yet have the wiring necessary for B-ISDN connections, but networks providing fiber-optic connections continue to grow. Contact phone and Internet providers in your area for specific coverage information.
Cost
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If phone companies in your area offer connections compatible with fiber cables and B-ISDN, your home or office may still require rewiring at a cost that may be thousands of dollars, depending on the size of the project. Monthly access fees also increase for access to broadband ISDN connections.
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References
- Photo Credit network cable image by Radoslav Lazarov from Fotolia.com
