Which two configurations should you enable on Cisco Unified Communications Manager for integration with Cisco Unified Communications Manager IM and Presence Service? (Choose two.)

Which two configurations should you enable on Cisco Unified Communications Manager for integration with Cisco Unified Communications Manager IM and Presence Service? (Choose two.)
A . Enable Cisco CallManager service
B . Enable End Users for IM and Presence
C . Create an Application User and associate Presence enabled endpoints with it.
D . Enable Cisco CAR Web service
E . Enable Cisco Extended Functions service

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Answer: AB