Identifies the name of the login interface that the question is associated with.
Valid values include:
UI_LOGIN_CONFIG_DISPLAY_NAME_ALL_INTERFACES
UI_LOGIN_CONFIG_DISPLAY_NAME_ADMIN_INTERFACE
UI_LOGIN_CONFIG_DISPLAY_NAME_CLI_INTERFACE
UI_LOGIN_CONFIG_DISPLAY_NAME_DEFAULT_USER_INTERFACE
UI_LOGIN_CONFIG_DISPLAY_NAME_IVR_INTERFACE
UI_LOGIN_CONFIG_DISPLAY_NAME_QUESTION_INTERFACE
UI_LOGIN_CONFIG_DISPLAY_NAME_USER_INTERFACE