Cisco Systems has lately become aggressive in promoting applications of the IP network infrastructure equipment that the company has traditionally sold. Cisco CallManagerthe subject of Cisco CallManager Fundamentalsis essentially an IPbased 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 callcontrol 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 looking for a detailed understanding of how CallManager works will find themselves delighted. While technicians looking for clickthis, clickthat procedures will be generally disappointed (such didactic techniques are not typical of Cisco Press books), they will find a fair number of sections that explain, in general terms, how to do such administrative work as loading users` names into a CallManager database and routing calls to emergency numbers. David Wall
