Which option should you use in the Cisco Unified Communications Manager End Users
Configuration page to ensure that a user can use a desk phone both for calls and for Cisco Unified
Presence?

A.
Enable Cisco Unified Presence Communicator

B.
Allow Control of Device from Cisco Computer Telephony Integration

C.
Allow Cisco Unified Personal Communicator Integration

D.
Allow Cisco Unified Presence Control over IP Phone

Explanation: