The Directory Gateway Notification feature is a collection of MCAPI (formerly called IMAPI) enhancements that allow the Enterprise Directory Gateway (EDG) application to be informed when an administrator (or software using an administrator access key) adds, deletes, or changes attributes of one or more subscribers, including changes made to subscribers' Class of Service (COS). This feature is seamless to the subscriber.
The EDG application first registers with the messaging system to be notified when subscriber-administrative attributes are changed. The registration specifies all the subscribers for which the EDG application wants notifications. When subscriber-administrative attributes are changed, the server sends events that are queued locally within the EDG application.
For additional information, see Enterprise Directory Gateway (EDG).