Which three are essential considerations for a dial plan in a Cisco Unified MeetingPlace solution? (Choose three.)

A.
Cisco Unified MeetingPlace requires at least one dial-in number.

B.
Implementing dialing restrictions can affect Cisco Unified MeetingPlace functionality.

C.
Calling partitions and calling search spaces can affect Cisco Unified MeetingPlace functionality.

D.
Calling partitions and calling search spaces do not affect Cisco Unified MeetingPlace functionality.

Explanation:
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