(This Hardware Description and Reference provides information on the hardware available for AvayaAura? Communication Manager. Use this book to find information about Avaya servers and gateways, circuit boards, media modules, phones, and other hardware used with CommunicationManager software. This book includes information on the following hardware: ? Linux-based servers ? DEFINITY-based servers ? Other servers ? Media gateways and integrated gateways ? Circuit boards, channel service units, and power supplies ? Media modules ? Network switches are used for each hardware component, and overviews and descriptions are provided in this book. In addition, information on model, configuration, components, LED indicators, specifications, supported related hardware, reliability and survivability, and high capacity is provided based on actual needs.)