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 | Voice Over IP (2nd Edition) by Uyless N. Black, Walter P. Metzger Paperback, 352 Pages, Published 2001 ISBN-10: 0-13-065204-0 / 0130652040 ISBN-13: 978-0-13-065204-1 / 9780130652041 In his most recent book, Voice Over IP, author Uyless Black proves himself a brave man by tackling the daunting subject of Internet telephony. This is the world of private branch exchanges (PBXs), local exchange carriers (LECs), plain old telephone service (POTS), and a slew of other acronyms that a | |