A Create Conference request sent to an Mcu was rejected. It will be retried but if this error continues to occur conferencing ...

A Create Conference request sent to an Mcu was rejected. It will be retried but if this error continues to occur conferencing functionality will be affected.

Mcu: %1 Conference: %2 Error: %3
Cause: Overloaded or incorrectly functioning MCU.
Resolution:
Ensure that the Mcu is functioning correctly.