| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To efficiently extract data meeting a prescribed condition from, for example, large quantities of call control data generated in real time. <P>SOLUTION: A data capture part 101 stores VoIP packets captured from a VoIP network 200 at every minute into a per-minute capture files. A key generation part 102 generates keys including SIP parameters of VoIP packets stored in the capture files, for each Call-ID and stores the keys into the per-minute key files. A key update part 103 adds an SIP parameter of a key newly stored, to keys stored in a key file wherein a key having the same Call-ID as the key newly stored has been first stored. A data management part 105 sorts VoIP packets stored in the capture files by Call-ID and stores them into the per-minute data files. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
