| 摘要 |
A call control method of a call control apparatus that establishes a call connection between an originating terminal and a receiving terminal in a network in which a plurality of call control apparatuses are provided is provided. The method includes detecting whether, in the call control apparatus, call connection processing is under congestion conditions, upon detecting that call connection processing is under congestion conditions, transferring, to another call control apparatus in the network, connection information for processing a call connection request from the originating terminal and sending, to the originating terminal, call connecting apparatus identification information with which the originating terminal establishes a call connection using the other call control apparatus, and upon detecting that call connection processing is not under congestion conditions and obtaining the connection information from the call control apparatus, establishing a call connection from the originating terminal included in the connection information.
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