ATMs, cellular phones, voice processing systems, wireless technology, video conferencing, government deregulation, company mergers, buyouts and break-ups, and a host of other revolutionary changes are causing a flood of new products and unbridled competition in the telecommunications industry. The Irwin Handbook of Telecommunications is an indispensable reference guide to the North American telecommunications system offering company-specific examples to illustrate the changing nature of telecommunications. This expanded edition includes new chapters on broadband communications, computer/telephony integration, premise wiring, internetworking, wireless communication and electronic messaging. The Handbook also provides: Authoritative information on telecommunications technology in a non-technical style; Model networks that illustrate how implementing new advances can help companies communicate better; Details on important new standards and legislation since the publication of the Second Edition.