Call classification through analysis of DTMF events

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United States of America Patent

PATENT NO 10257591
APP PUB NO 20180041823A1
SERIAL NO

15600625

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Abstract

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Systems, methods, and computer-readable media for call classification and for training a model for call classification, an example method comprising: receiving DTMF information from a plurality of calls; determining, for each of the calls, a feature vector including statistics based on DTMF information such as DTMF residual signal comprising channel noise and additive noise; training a model for classification; comparing a new call feature vector to the model; predicting a device type and geographic location based on the comparison of the new call feature vector to the model; classifying the call as spoofed or genuine; and authenticating a call or altering an IVR call flow.

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Patent Owner(s)

Patent OwnerAddress
PINDROP SECURITY INC1115 HOWELL MILL ROAD SUITE 700 ATLANTA GA 30318

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cornwell, John Atlanta, US 9 21
Dewey, David Atlanta, US 38 477
Gaubitch, Nick Atlanta, US 4 15
Kingravi, Hassan Atlanta, US 7 31
Strong, Scott Atlanta, US 38 385

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