Refer to the exhibit. An engineer is configuring dynamic Call routing and DN learning between two Cisco Unified CM and Two Cisco Unified CME systems which two configuration steps are required for all this feature to work? (Choose two)
A. Configure routers A and B to use a different autonomous system number for DN routing
B. Configure routers A and B to use EIGRP for IP Routing
C. Configure Cisco Unified CM A+B as service advertisement framework clients
D. Configure router A and B to use OSPF for IP Routing
E. Configure Cisco Unified CME A+B as service advertisements forwarders
F. Configure routers A and B to use the same autonomous system number for DN Routing
