VDNs must be assigned to a vector through the ACD system. A VDN can connect calls to a vector when the calls arrive over an assigned automatic-in trunk group or when calls arrive over a dial-repeating, Direct Inward Dialing (DID) trunk group and the final digits match the VDN. The VDN can be dialed to access the vector from any extension that is connected to the switch.
Calls use VDN skills for routing based on the assigned preferences. You can use CMS Supervisor to change the first, second, and third skill preferences assigned to a VDN.