Malicious call detection apparatus, malicious call detecting method and computer program for detecting malicious calls
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United States of America Patent
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May 10, 2016
Grant Date -
May 3, 2012
app pub date -
Apr 28, 2010
filing date -
Apr 30, 2009
priority date (Note) -
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Abstract
To improve detection accuracy of SPIT, first, an identification information gathering apparatus receives various identification information from an IP phone terminal which has transmitted an INVITE message. A PUCI server generates bind identification information by binding or associating various identification information received from an identification information gathering apparatus via an SIP server and registers the bind identification information to a gray list stored in a list storing portion. A SPIT determination portion evaluates the bind identification information in reference to the gray list and determines whether or not the session start request from the IP phone terminal is allowed.
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