| 摘要 |
PROBLEM TO BE SOLVED: To quickly restart a service while surely executing relief of a session. SOLUTION: A transmitting and receiving part 210 outputs a call ID of a SIP signal received after detecting abnormality to a relief file retrieving part 280. A session control part 220 resecures a call processing resource and instance for a session corresponding to the relief file and stores call processing resource information and instance information in a main storing part 230 once again. The main storing part 230 stores session information included in the relief file once again. A relief file preparing part 240 prepares a relief file. An external storing part 250 stores the relief file. A relief file retrieving part 280 retrieves a relief file that coincides with the call ID output from the transmitting and receiving part 210 from the external storing part 250 and outputs the relief file to the session control part 220 and the main storing part 230. COPYRIGHT: (C)2008,JPO&INPIT
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