TY - BOOK AU - Proakis,John G. ED - Gnostic Concepts, Inc. TI - Digital communications SN - 0071181830 (pbk) U1 - 621.382 19 PY - 2001///c CY - Menlo Park, Calif. (2710 Sand Hill Road, Menlo Park 94025) PB - Mcgraw Hill KW - Telecommunication equipment industry KW - United States KW - Teleconferencing equipment industry KW - Data transmission equipment industry KW - Market surveys N1 - Index included ER -