Patent ID: 7882241

Claim:
A communication management apparatus that manages a session established between users for communication, the communication management apparatus comprising: a receiver that receives a signal that controls the session between the users; a main memory that stores therein, for each session, data used for managing the session based on the signal received by the receiver; a generator that generates a recovery file for every session and stores the recovery file in an external memory other than the main memory, the recovery file including a part of the data stored in the main memory; an initializer that initializes the main memory when a failure occurs in the communication management apparatus; a retriever that retrieves, when the main memory is initialized by the initializer and a new signal for an established session established before the failure is received by the receiver, the recovery file corresponding to the new signal from the external memory; and a controller that resumes the management of the established session corresponding to the recovery file using the recovery file retrieved by the retriever.