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ISDN

Links

isdnshop.com

http://www.isdnshop.com/isdn-basics.html

isdnshop.com - ISDN 101 - An Introductory Survey of ISDN.

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qwest.com

http://www.qwest.com/products/data/isdn/isdn_faq.html

qwest.com - Integrated Services Digital Network FAQs.

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