A number of resources are available for additional information about ISDN, including facts about hardware and standards. Here's a starting list.
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Service Availability
To find ISDN contacts at your RBOC (Regional Bell Operating Company) and information about ISDN availability in your area, call Bellcore's National ISDN hot line at (800) 992-4736 or connect to ftp info.bellcore.com in the /pub/ISDN directory.
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Tariffs
ISDN rates are generally set by the PUC (Public Utilities Commission) in your area, so if you have a complaint about rates, write to your PUC representative or attend the meetings at which rates are decided. Some areas support ISDN users groups, which can provide you with information or l
obbying power when dealing with the PUC.
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Compatibility and Standards
One common method that hardware vendors use to improve interoperability is the PPP protocol. For more information, see "From Here to There," June 1994 BYTE, and the Internet Engineering Task Force's RFC (Request for Comments) 1618.
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ISDN Equipment
For more information about hardware, see the Usenet news group comp.dcom.isdn and the WWW (World Wide Web) pages at http://alumni.caltech.edu/dank/isdn/ and http://www.icus.com/isdn.html.
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For Further Reading
Frequently Asked Questions list from comp.dcom.isdn and ftp://rtfm.mit.edu/pub/usenet/news.answers/isdn-faq.
Fritz, Jeffrey. "Clearing Away the ISDN Roadblocks." October 1994 BYTE. Also, "Digital Remote Access." September 1994 BYTE.
Other Avenues
