A large enterprise is using an Avaya Aura® Core. An Avaya SIP Endpoint, one-X® Communicator, controlled by Avaya Aura® Communication Manager (CM), has been configured with three feature buttons, but none of the buttons appear on the telephone interface. The telephone shows successful registration with Avaya
Aura® Session Manager (SM) at the SIP Level.
What are two possible causes for this feature button failure? (Choose two.)