"The AbleComm Guide to Phone Systems" provides the information people need to select phone systems and related telecommunications equipment for professional offices, small- and medium-size businesses and homes This book will help people choose and use their telephone system properly, to get the most out of it and to keep it working; озщуе and will even help people who sell phone equipment Products covered include simple and complex phone systems, voicemail, auto-attendant, headsets, back-up power, music on hold, cordless phones, tools and more There are extensive sections on telecom terminology, technology trends, choosing a phone system, phone system features, wire and cable, installation, and troubleshooting The book also covers the various technologies for making phone calls: analog, DSL, VoIP, ISDN, wireless, T1 and cable The extensive acronym section covers such terms as LECs, CLECs, ILECS and BLECs plus LANs, MANs and WANs, and even POPs, POTS, SIM, SIC and SNAFU Readers will learn how to locate their octothorpe and how Stephen Baldwin, Paul Teutul and others waste time on the telephone Although the book deals with technical subjects, it is easy to understand and often humorous It will be valuable for anyone contemplating the purchase of a telephone system for business or home, and will also help those who already have systems, and even those who sell them.  Это методическое2009 г Мягкая обложка, 216 стр ISBN 0981661734.