What two configuration options are required for a voice-enabled directory handler to function?

A.	The Voice Enabled option is checked for the directory handler
B.	The Allow Users to Use Voice Recognition option is selected in a class of service that is applied to the user
C.	An external speech recognition server is deployed
D.	A user must have a display name configured on the User Basics page
E.	The phone menu inputs for the user is set to voice recognition