This book provides an understanding of the current Cisco VoIP solutions and tools to put them to work, shows how to configure all of Cisco's core VoIP products-among them Cisco CallManager software, Cisco 7910 series phones, and server-based IP PBX. Cisco has placed high priority on security and here readers will find complete coverage of all Cisco security products such as PIX firewall product suite, Network Address Translation (NAT), Cisco VPN Concentrator and IPSec, Cisco Authentication, Authorization, and Accounting (AAA) , Content Services Switch (CSS), and Network Cisco Secure Intrusion Detection System. - The book that covers all major Cisco Internetworking concepts and configurations. - The only topic of Cisco internetworking book cross references: Voice Over IP, Remote Access, Wireless, AVVID, and QoS.