BATES R. AND GREGORY D. VOICE and DATA COMMUNICATIONS HANDBOOK 5TH ED Textual Documents - 01-01-2008 - TATA MC GRAW HILL PUB.CO.LTD., NEW DELHI - XXVII/644 24*18 13932 ISBN: 13-978-0-07-064766-4 P.B. Subjects--Index Terms: VOICE NETWORK (B.E.) Dewey Class. No.: 005.71 / BAT/GRE