In order for Cisco Unified Presence to show the presence status of an IP phone, which two configuration steps must be completed in the Cisco Unified Communications Manager server? (Choose two.)

In order for Cisco Unified Presence to show the presence status of an IP phone, which two configuration steps must be completed in the Cisco Unified Communications Manager server? (Choose two.)
A . Check the Allow Presence Status check box.
B . Associate the end device with the user.
C . Allow the SIP publish trunk to forward presence status messages.
D . Associate the directory number with the user.
E . Enable Cisco Unified Personal Communicator Status flag.

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Answer: BD