A startup company wants to deploy the Cisco IP Telephony solution.
Which two actions are appropriate design approaches? (Choose two.)
A . Connect user IP phones to the Ethernet switches of access layer.
B . Connect IP phones to the Ethernet switches of data center module.
C . Connect Cisco Unified Communications manager to the Ethernet switches of data center module.
D . Connect SIP trunks for PSTN connectivity to Ethernet switches of campus core layer.
E . Connect Cisco Unified Communications Manager to the Ethernet switches of the campus core layer.
Answer: AE