A call overflow system 8 and method is provided for transferring, or overflowing, telephonic calls between an originating ACD 12A, a destination ACD 12B and other ACDs 12C. The originating ACD 12A receives a telephonic call, compiles data relating to the telephonic call and overflows the telephonic call based on overflow criteria to the destination ACD 12B. In conjunction with the overflow of the telephonic call, the originating ACD 12A transmits the data to the destination ACD 12B. The data comprises one or more of the type of information of (a) identification of whether the caller attempted to block a caller identification process; (b) identification of whether the call was answered at the originating automatic call distributor prior to transfer to the destination automatic call distributor; (c) identification of a dialed number identification service from the originating automatic call distributor; (d) identification of a trunk number representative of a trunk over which the call was received by the originating automatic call distributor; (e) identification of a call sequence number identifying the call; and (f) identification of a number of dialed number identification service values included with the overflow call. This data is then used by a central processing unit 16B at the destination ACD 12B for accessing information stored in a host computer 23 relating to the call, for providing information to an agent at the destination ACD 12B who handles the call and the like.