Amazon.comCisco Systems has lately become aggressive in promoting applications of the IP network infrastructure equipment that the company has traditionally sold. Cisco CallManager--the subject of Cisco CallManager Fundamentals --is essentially an IP-based Public Branch Exchange (PBX) that enables companies to carry their voice and data traffic on a single network infrastructure. This book explains how CallManager (originally developed by Selsius Systems) goes about providing call-control services to IP telephony devices and performing reliably as a corporate telephone switch, and offers insight into how the product may evolve. The volume provides systems architects, engineers, and implementation technicians with the details they need to build strong CallManager systems. Written by members of the CallManager development team and extensively edited for accuracy, Cisco CallManager Fundamentals uses prose and remarkably clear network diagrams to make its points. People...