Sharleen,
As the data sheet lists only those hardware models which are tested. If your server model is not found there it means it's not tested & supported even though it is more powerful than required.
To be 200 % sure, I would suggest you open a PDI case ( since you appear to be a Cisco Partner ) from portal www.cisco.com/go/pdihelpdesk so that it can be confirmed directly from Calabrio.
Alternatively, you can open a thread on Cisco Communities, which is monitored by Calabrio folks too. https://communities.cisco.com/community/partner/collaboration/contactcenter/apps?view=discussions
Hope it helps ?
Pls rate helpful posts.
GP.