Isdn
2 edition
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Word Count
72,000 words, Guess
Page Count
288 pages
Physical Format
Paperback
Identifiers
- ISBN-101857284062
- ISBN-139781857284065
- Better World Books9781857284065
- Open LibraryOL8999096M
First Sentence
The abbreviation for integrated services digital network, ISDN, was introduced in about 1979 to represent the objective towards which digital telecommunications development was tending.
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