In Cisco Unified Business Attendant Console version 8.6.1.9 the standard parked calls can only be picked up by other AC users. How does an operator park a call so that non-AC users can pick it up?

While using Cisco Unified Business Attendant Console version 8.6.1.9, when a second call comes into the Active Calls [F7] area both it and the existing call are greyed out. Neither call can be answered or otherwise controlled via the AC software howe...