For Cisco Unity Connection to make notification calls, the notification device must be enabled. Disabling a notification device does not delete its settings. Connection considers notification successful if the device answers, even when new messages remain. (For example, notification is considered successful even when an answering machine picks up and records the message.)
You can change the type of events that Connection notifies you of, the callers or phone numbers that trigger a device, your notification schedules, and the contact options for your notification devices only in the Messaging Assistant web tool, not by phone.