If you assign a vector directory number (VDN) extension as the last point in a call coverage path, you apply call vectoring functionality to the coverage point. The programmable vector that is associated with the VDN provides flexibility in call handling.

You can program a vector that is assigned to the VDN in the coverage path to queue a redirected call to a messaging split for call answer operation, and to allow the caller to leave a message at the called extension. The same VDN can also be used to retrieve messages. You can also vary the vector program by split status or time-of-day to provide different types of coverage.

When a redirected call covers to a VDN, the simulated bridged appearance of the called extension is removed when vector processing starts.

When covered calls or direct calls are connected to Communication Manager Messaging or to a messaging split through call vectoring, both the original reason for redirection and the called extension must be passed to the adjunct over the Switch Communication Interface (SCI) link.

Use of a VDN as a coverage point provides integration to Centralized Messaging. That is, the distributed communication system (DCS) message that is sent to the remote switch with Communication Manager Messaging includes the original reason for redirection and the called extension.