Which two actions are performed by the Call Control Discovery service after the local Cisco Unified Communications Manager loses its TCP connection with the primary and secondary Service Advertisement Framework?

A.	Calls are routed to the PSTN gateway after the Call Control Discovery Learned Pattern IP Reachable Duration parameter expires.
B.	All learned patterns are purged from the local cache after the Call Control Discovery PSTN Failover Duration parameter expires.
C.	The Service Advertisement Framework forwarder contacts all the remaining Service Advertisement Framework forwarders in the cluster.
D.	All the remaining Service Advertisement Framework forwarders are notified for their learned patterns.
E.	he Cisco Unified Communications Manager establishes a connection with the primary and secondary Service Advertisement Framework after the Learned Pattern IP Reachable Duration parameter expires.
F.	Call Control Discovery immediately redirects all the calls to the PSTN gateway based on the learned patterns.