Direct Outward Dialing (Dod)
Feature of all modern private branch exchange (PBX) systems under which a caller at any phone extension can be allowed to make outbound calls without the help of an attendant or operator. See also direct inward dialing.
Feature of all modern private branch exchange (PBX) systems under which a caller at any phone extension can be allowed to make outbound calls without the help of an attendant or operator. See also direct inward dialing.
