Detection of telephone number spoofing
First Claim
1. A method comprising:
- receiving, at a data-processing system from a calling telephone, a telephone number of the calling telephone and an indication of a telephone type of the calling telephone; and
granting a privilege to the calling telephone, wherein the granting of the privilege is based on whether the telephone type of the calling telephone agrees with what is expected for the telephone number of the calling telephone.
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0 Petitions
Accused Products
Abstract
An apparatus and method are disclosed that enables detecting the spoofing of a telephone number. To validate the identity of a calling terminal, some techniques in the prior art rely on exchanging data that only the legitimate calling system and the called system know about. In contrast, the illustrative embodiment of the present invention validates the identity of the calling terminal by assessing characteristics other than the calling terminal'"'"'s telephone number, such as the telephone type and the signaling protocol. By using characteristics other than telephone number to validate the identity, the data-processing system of the illustrative embodiment makes it more difficult to spoof a legitimate telephone'"'"'s number.
48 Citations
20 Claims
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1. A method comprising:
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receiving, at a data-processing system from a calling telephone, a telephone number of the calling telephone and an indication of a telephone type of the calling telephone; and granting a privilege to the calling telephone, wherein the granting of the privilege is based on whether the telephone type of the calling telephone agrees with what is expected for the telephone number of the calling telephone. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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receiving, at a data-processing system, a telephone number of and an indication of a signaling protocol for a calling telephone, wherein the calling telephone uses the signaling protocol for call origination; and granting a privilege to the calling telephone, wherein the granting of the privilege is based on whether the signaling protocol used by the calling telephone for call origination agrees with what is expected for the telephone number of the calling telephone. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method comprising:
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receiving, at a data-processing system, a plurality of identifiers that identifies a calling telephone, wherein the plurality of identifiers comprises a telephone number of the calling telephone; and granting a privilege to the calling telephone, wherein the granting of the privilege is based on whether the ordering of the identifiers within the plurality that identifies the calling telephone agrees with what is expected for the telephone number of the calling telephone. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification