TY - BOOK AU - Bates,Regis J. AU - Gregory,Donald W. TI - Voice and data communications handbook SN - 0072131888 AV - TK5105 B373V 2001 PY - 2001/// CY - New York, N.Y. PB - McGraw-Hill KW - TELECOMMUNICATION KW - HANDBOOKS, MANUALS, ETC N1 - Spine and cover title : Voive & data communications handbook; Includes index ER -