Patent · US Active

System and method for spam detection

US8085915B2 · kind B2 · utility

11Cited by

2References

21Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

John Reumann · Ossining, US
Debanjan Saha · Potsdam, US
Zon-Yin Shae · South Salem, US
Kunwadee Sripanidkulchai · White Plains, US

Key dates

Filing date	Jun 2, 2008
Grant date	Dec 27, 2011
Priority date	—
Expiry date	Feb 7, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04L65/1104
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A voice-over-internet protocol (VoIP) caller verification method includes generating a challenge to be sent to a VoIP caller which needs a response from the VoIP caller prior to accepting a VoIP call, wherein the challenge includes a test pattern crafted to create a greater load at a spammer VoIP caller as compared to a human VoIP caller. A response or lack thereof is determined from the VoIP caller, and the response is analyzed relative to an acceptable response to determine whether the VoIP caller is acceptable to communicate with.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.