About the video
View the video (isdn.mpg ~112Mb 10:56)

An animated video produced for the 1985 Open Day explaining the principles of an Integrated Services Digital Network (ISDN) and the transmission problems associated with the delivery of ISDN services to customers.

The video was created within TRL on an Apple II Personal Computer using software called "Graphics Magician".

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Last updated: October 11, 2002