Cisco Cisco Administrative Workstation Guia Da Instalação

It is recommended you create a bootable image of the systems that includes the 
operating system and the network configuration. This backup is a good business 
practice to assure system recovery in case catastrophic conditions occur during 
the upgrade process.

Document and validate your default network routing plan prior to the upgrade. 
When you cross over from your old ICR/ICM production system to your new ICM 
system, you will be down for a period of time until the cross over is complete.

Execute test cases at various stages of the upgrade based on your expectations. We 
recommend that, as a minimum, you test the following areas:

Pre-upgrade Application test

Pre-upgrade System Integrity tests

CTI functionality (as applicable)

Configuration tools

Reporting functionality

Post-upgrade Application test

Post-upgrade System Integrity tests

Perform test cases when side A is upgraded and running in non-fault tolerant 
mode, prior to the upgrade of side B. Perform the test cases again when the ICM 
system is fully upgraded and running in duplex mode.

In addition, schedule appropriate resources to ensure custom CTI functionality 
after an upgrade.

For additional information, refer to 

.