CALL PROCESSING DEVICE, CALL CONTROL DEVICE, CALL PROCESSING SYSTEM, AND CALL PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a call processing device, call control device, call processing system, and call processing method for effectively performing a load delivery.SOLUTION: Each call processing device includes: a storage section connected to the other call processing device and a call control device for transferring a call signal to the self device or the other call processing device, and storing call information related to multiple sessions of the call signal transferred from the call control device; a call processing section for performing call processing on the basis of the call information stored in the storage section; a duplication section for copying the call information stored in the storage section to the other call processing device; and a control section for deleting the call information related to a session not belonging to a predetermined group among the multiple sessions from the storage section when the convergence of the call processing occurs in the call processing section, and controlling the call control device to prevent the call signal of the session from being transferred to the other call processing device.