Cisco Unified Communications Manager Attendant Console Support in 7.1(2)
If you are upgrading from a compatible Cisco CallManager 4.X release or a compatible Cisco Unified Communications Manager 5.X, 6.X, or 7.X release to Cisco Unified Communications Manager Release 7.1(2), you can continue to use the Cisco Unified Communications Manager Attendant Console. As automated within the Cisco Unified Communications Manager upgrade process, the Cisco Unified Communications Manager Attendant Console plug-in will remain viewable from the Find and List Plugins window in Cisco Unified Communications Manager Administration 7.1(2).
Be aware, however, that Cisco no longer supports the Cisco Unified Communications Manager Attendant Console with new installations of Cisco Unified Communications Manager 7.X. For new installations, the Cisco Unified Communications Manager Attendant Console plug-in does not display in the Find and List Plugins window in Cisco Unified Communications Manager Administration.
If you previously obtained the Cisco Unified Communications Manager Attendant Console 7.0(x) plug-in from the Cisco software download site, you can use that plug-in with Cisco Unified Communications Manager 7.1(x) but only for upgrades of a compatible Cisco Unified Communications Manager 5.X, 6.X, or 7.X release to Cisco Unified Communications Manager Release 7.1(x). Cisco Systems does not authorize the use of the Cisco Unified Communications Manager Attendant Console 7.0(x) plug-in with new Cisco Unified Communications Manager 7.X installations, and its use does not get supported by the Cisco Technical Assistance Center.
If you need attendant console functionality after a Cisco Unified Communications Manager 7.X installation/upgrade, Cisco recommends that you use the Cisco Unified Business Attendant Console, Cisco Unified Enterprise Attendant Console, or the Cisco Unified Department Attendant Console.
http://www.cisco.com/en/US/partner/docs/voice_ip_comm/cucm/rel_notes/7_1_2/cucm-rel_notes-712b.html#wp1236211
If you have a new install there is nothing in the inactive partition so there's not switchback. You need to install 6.X fresh
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