Private Branch Exchange Systems and Applications

by Daniel J. Callahan, Charles R. Parsons, Stanley E. Bush

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• Format: Hardcover
• Language: English
• ISBN: 0070097062
• ISBN13: 9780070097063
• Release Date: January 1993
• Publisher: McGraw-Hill Companies
• Length: 192 Pages
• Weight: 1.03 lbs.
• Dimensions: 0.7" x 6.2" x 9.3"