Which change will ensure that the user is unable to call 2143?

Refer to the exhibit.

An engineer is confining class of control for a user in Cisco UCM.

Which change will ensure that the user is unable to call 2143?
A . Change line partition to Partition_A
B . Change line CSS to only contain Partition_B
C . Set the user’s line CSS to <None>
D . Set the users device CSS to <None>

View Answer

Answer: D