Cisco Support Community
Community Member

Unity 3.1 to 4.0 Upgrade Questions

Currently running Unity 3.1.3 UM with Exchange 2K off box and trying to upgrade to 4.0.3.

- Do we need to extend the AD schema again for the 4.0 upgrade? We extended the AD schema for the 3.1.3 install.

- Can we use one services account instead of the two mentioned in the docs? The same one we have now for 3.1.3?

- When prompted to select Exc 2k or 2003, what do you do if have both? or if you have Exc 2K and will be upgrading to 2003 later on?




Re: Unity 3.1 to 4.0 Upgrade Questions

Yes you will need to extend the schema again. 4.0 requires some additional properties.

The only supported security model is the one that we document. 3.X relied heavily on Local System and the Exchange Domain Servers group for Exchange 2000 integrations. Several configurations have problems where Local System is not considered to be a valid security principal and Microsoft continues tinkers with the permissions this group has, often taking away rights that Unity requires. For this reason we required all message store facing services to run with an AD account and explicitly grant right to the account rather than relying on group membership. Our security model for 4.0(3) is pretty solid but yes, you will need two accounts for the services.

If you have Exchange 2003 the Unity partner server must be an Exchange 2003 server and you must have the Exchange 2003 System Manager installed on the Unity server. Once you upgrade to Exchange 2003 you can re-run the Cisco Unity Message Store Configuration Wizard from add/remove programs and upgrade the Exchange System Manager. It’s a pretty painless process.


CreatePlease to create content