Cisco Cisco IP Contact Center Release 4.6.1 Installation Guide

If you get a ReadOnly File Detected dialog, click Do not display this message 
again, then click Yes.

Reboot as directed.

The ICM processes should not be started until after the Central Controller Side B 
has been upgraded.

Enable configuration updates for all instances by setting the registry variable in 
the CallRouter. The following registry change should be made on the CallRouter:

HKEY_LOCAL_MACHINE\Software\

Cisco Systems, Inc.\ICM\<instance name>\RouterA\Router\

CurrentVersion\Configuration\Global\

.

Test that configuration updates have been enabled.

A test plan is utilized at various stages of the upgrade process. It is up to you to 
develop the actual test cases with actual dialed numbers, labels, targets, and 
expected results. The key areas in which to develop test cases follow.

The most crucial test is the ability of the system to route calls to defined peripheral 
targets. Side A of the ICM system is upgraded to ICM 5.0 first, then returned to 
service. Monitor the ICM call routing decisions to determine if it is making the 
appropriate routing decisions. The Key AWs, upgraded prior to the side B Central 
Controller, are used to monitor call routing.