The Cisco VG 224 Analog Phone Gateway enables an IP Telephony solution to continue using traditional analog devices while taking advantage of the productivity afforded by IP infrastructure.The Cisco VG 224 is a Cisco IOS high-density 24-port gateway for analog phones, fax machines, modems, and speakerphones within an enterprise voice system based on Cisco CallManager. Having these devices tightly integrated with the IP-based phone system is advantageous for increased manageability, scalability, and cost-effectiveness. Commercial businesses can also use the Cisco VG 224 in conjunction with Cisco CallManager Express to effectively augment a Full Service Branch router environment. This topology environment supports businesses needs of high concentration of analog voice ports for basic calls, with some supplementary services.The Cisco VG 224 offers Cisco IOS manageability with 24 analog phone lines to be used as extensions to the Cisco CallManager system in a very compact 19-inch rack-mount chassis.