Intermittent issues with Consoles going into an "Unknown State" and not being able to take calls. It appears to be related to a CTI issue, however, it intermittently affects all Consoles where a Console goes into an "Unknown State" requiring that it is shut down and restarted. It has been observed that up to two Consoles have been affected at one time.
The issue was caused by the Cisco UCCX configuration.
The UCCX IPCC agent extension had been placed in a line group (and a hunt group). Ask the customer to check the Cisco UCCX configuration and remove all extensions from the affected Consoles from the line groups.