CallManager Hardware
Although CallManager is a software-based application, it must be purchased as
part of the Cisco Media Convergence Server (MCS).The MCS servers are
Compaq server-class systems.There are several different models of the servers; all
essentially perform the same functions—the only real differences are the hardware
www.syngress.com
Figure 2.1 CallManager Clustering
IP Telephone IP Telephone
Primary Primary Primary Primary Backup Backup Database Pub. TFTP
CallManager Cluster
New World Technologies • Chapter 2 35
features, such as hard drive space, processor speed, and memory capacity.As with
all other servers in your network, you should purchase the MCS that best fits
your organization’s needs. Consult the Cisco Web site (www.cisco.com) for the
most up-to-date MCS server information.There is, of course, an exception to the
rule of only being able to purchase CallManager preloaded on an MCS server
platform. If you have already purchased a Compaq DL320 or DL380 server,
meeting specific system requirements as outlined by Cisco, you can purchase a
software-only version of the CallManager Software.