We have Unified voice messaging system 4.2 with Exchange 2003. Both Unity servers are installed on Window 2000. Now we want to change the OS from WIndow 2000 to Window 2003. I couldnt find any procedure from cisco.com to replace the operating system.
for Unity 5.X it is given on cisco.com.
Kindly confirm me whether it is possible to change the operating system for 4.2.
Also please share me if you have any doc to upgrade the OS from 2000 to 2003 for unity 4.2. Do we have to take some precautions or just I have to take the backup and reinstall the unity on window 2003 and then restore the backup.