Which statement is not true concerning high availability of the Cisco Unified ICM central controller?

A.
In the event that one Call Router of a duplex pair of Cisco Unified ICM Call Routers fails, the surviving Call Router recognizes the failure when it receives no response to heartbeats over the private LAN.

B.
During Cisco Unified ICM Call Router failover processing, calls in progress in either the Cisco Unified
Customer Voice Portal or Cisco Unified IP IVR will be disconnected, but all new calls will be successfully processed.

C.
There is no impact to call processing during a Cisco Unified ICM Logger failure.

D.
In the event that the private LAN fails, the PGs are used to help determine the active Call Router side of the duplex pair.