Cisco Cisco Administrative Workstation Installation Guide

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Cisco ICM Enterprise Edition Pre-installation Planning Guide Release 6.0(0)
Chapter 6      CTI Planning
CTI Server
CTI Server Platform Options
The CTI Server runs on a machine that is also running a Cisco ACD (or VRU) PG 
process. The shared platform option is shown in 
.
Figure 6-2
Shared CTI Server Platform
CTI Server Fault Tolerance
You can implement the CTI Server in a duplexed, fully fault-tolerant 
configuration. In a duplexed configuration, the CTI Server is installed on a pair of 
PC platforms. In the event of a failed CTI client connection, the client process can 
automatically reestablish a connection to either side of the duplexed CTI Servers. 
The call’s CTI client history list and any updates to call variables remain in effect 
when the connection is reestablished. 
 shows a duplexed CTI Server 
configuration.