Select all that apply.

• A

  The conference originator of the conference acts as the controller of the conference and is the only participant who can add or remove other participants.

• B

  Any participant can add and remove other conference participants.

• C

  Anyone who has calling privileges to call the directory number while the conference is active can join the conference.

• D

  Multiple ad hoc conference can be added.

• E

  A range of directory numbers must be allocated for exclusive use by the conference.