InCyb ISDN Page Cover of Using ISDN 2nd Edition

Industrial Cyberspace (InCyb) was the first company sponsor member of the Texas ISDN Users' Group and is a charter member of that organization.

James Lee "JJ" Johnson, Internet Software Engineer, is a technical editor and contributor to Special Edition, Using ISDN, published by QUE and written by James Y. Bryce.

What is ISDN?

ISDN, Integrated Services Digital Network

BRI, Basic Rate Service (2B+D)

PRI, Primary Rate Interface (23B+D)

Copyright 1995, 1996, 1997, 1998, 1999 by Industrial Cyberspace, Austin, Texas.