Systems and methods for detecting call provenance from call audio
First Claim
1. A method comprising:
- receiving, at a computing device, for a first call, placed from a first party at a first communications device, to an intended second party at an address associated with a second communications device, data representing call audio received at the first communications device during the first call;
determining, by the computing device, based on the data representing the call audio received at the first communications device, a first provenance fingerprint indicative of one or more communications devices participating in the first call with the first communications device;
determining, by the computing device, based on the first provenance fingerprint, that a third communications device is likely participating in the first call from the first party at the first communications device, the third communications device being a different communications device from the first and second communication devices; and
responsive to the determining that the third communications device is likely participating in the first call, outputting an indication that a different communications device from the first and second communications devices is likely participating in the first call.
1 Assignment
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Accused Products
Abstract
Various embodiments of the invention are detection systems and methods for detecting call provenance based on call audio. An exemplary embodiment of the detection system can comprise a characterization unit, a labeling unit, and an identification unit. The characterization unit can extract various characteristics of networks through which a call traversed, based on call audio. The labeling unit can be trained on prior call data and can identify one or more codecs used to encode the call, based on the call audio. The identification unit can utilize the characteristics of traversed networks and the identified codecs, and based on this information, the identification unit can provide a provenance fingerprint for the call. Based on the call provenance fingerprint, the detection system can identify, verify, or provide forensic information about a call audio source.
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Citations
30 Claims
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1. A method comprising:
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receiving, at a computing device, for a first call, placed from a first party at a first communications device, to an intended second party at an address associated with a second communications device, data representing call audio received at the first communications device during the first call; determining, by the computing device, based on the data representing the call audio received at the first communications device, a first provenance fingerprint indicative of one or more communications devices participating in the first call with the first communications device; determining, by the computing device, based on the first provenance fingerprint, that a third communications device is likely participating in the first call from the first party at the first communications device, the third communications device being a different communications device from the first and second communication devices; and responsive to the determining that the third communications device is likely participating in the first call, outputting an indication that a different communications device from the first and second communications devices is likely participating in the first call. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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receiving, at a computing device, for a first call, placed from a first party at a first communications device, to an intended second party at an address associated with a second communications device, data representing call audio received at the first communications device during the first call; determining, by the computing device, based on the data representing the call audio received at the first communications device, a first provenance fingerprint indicative of one or more communications devices participating in the first call with the first communications device; determining, by the computing device, based on the first provenance fingerprint, that a third communications device is unlikely to be participating in the first call from the first party at the first communications device, the third communications device being a different communications device from the first and second communication devices; and responsive to the determining that the third communications device is unlikely to be participating in the first call, outputting an indication that a different communications device from the first and second communications devices is unlikely to be participating in the first call.
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15. A method comprising:
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receiving, at a computing device, for a first call, between a first communications device and a second communications device, data representing call audio received at the first communications device during the first call, wherein the first call is associated with an expected network path between the first and second communication devices; determining, by the computing device, based on the data representing the call audio received at the first communications device, a first provenance fingerprint indicative of one or more networks traversed by the first call; determining, by the computing device, based on the first provenance fingerprint, that an unexpected network path is likely being traversed by the first call, the unexpected network path comprising a different sequence of networks from the expected network path; and responsive to the determining that the unexpected communications network path is likely being traversed by the first call, outputting an indication that a different network path from the expected network path is likely being traversed by the first call. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method comprising:
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receiving, at a computing device, for a first call, between a first communications device and a second communications device, data representing call audio received at the first communications device during the first call, wherein the first call is associated with an expected network path between the first and second communication devices; determining, by the computing device, based on the data representing the call audio received at the first communications device, a first provenance fingerprint indicative of one or more networks traversed by the first call; determining, by the computing device, based on the first provenance fingerprint, that one or more networks in the expected network path are likely being traversed by the first call; and responsive to the determining that one or more networks in the expected network path are likely being traversed, outputting an indication that the expected network path is likely being traversed by the first call.
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Specification