Detection of telephone number spoofing
First Claim
1. A method comprising:
- receiving a telephone number and a telephone type for a first telephone; and
granting a privilege to said first telephone based on whether or not said telephone type agrees with what is expected for said telephone number.
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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.
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Citations
20 Claims
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1. A method comprising:
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receiving a telephone number and a telephone type for a first telephone; and
granting a privilege to said first telephone based on whether or not said telephone type agrees with what is expected for said telephone number. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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receiving a telephone number and a signaling protocol for a first telephone; and
granting a privilege to said first telephone based on whether or not said signaling protocol agrees with what is expected for said telephone number. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method comprising:
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receiving a plurality of identifiers that identifies a first telephone, wherein said plurality of identifiers comprises a telephone number; and
granting a privilege to said first telephone based on whether or not the ordering of said identifiers within said plurality agrees with what is expected for said telephone number. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification