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Detecting nuisance calls over internet telephony using caller reputation

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Show simple item record Javed, Ibrahim Tariq Toumi, Khalifa Alharbi, Fares Margaria, Tiziana Crespi, Noel 2021-02-09T09:41:41Z 2021-02-09T09:41:41Z 2021
dc.description peer-reviewed en_US
dc.description.abstract Internet telephony permit callers to manage self-asserted profiles without any subscription contract nor identification proof. These cost-free services have attracted many telemarketers and spammers who generate unsolicited nuisance calls. Upon detection, they simply rejoin the network with a new identity to continue their malicious activities. Nuisance calls are highly disruptive when compared to email and social spam. They not only include annoying telemarketing calls but also contain scam and voice phishing which involves security risk for subscribers. Therefore, it remains a major challenge for Internet telephony providers to detect and avoid nuisance calls efficiently. In this paper, we present a new approach that uses caller reputation to detect different kinds of nuisance calls generated in the network. The reputation is computed in a hybrid manner by extracting information from call data records and using recommendations from reliable communicating participants. The behavior of the caller is assessed by extracting call features such as call-rate, call duration, and call density. Long term and short term reputations are computed to quickly detect the changing behavior of callers. Furthermore, our approach involves an efficient mechanism to combat whitewashing attacks performed by malicious callers to continue generating nuisance calls in the network. We conduct simulations to compute the performance of our proposed model. The experiments conclude that the proposed reputation model is an effective method to detect different types of nuisance calls while avoiding false detection of legitimate calls. en_US
dc.language.iso eng en_US
dc.publisher MDPI en_US
dc.relation.ispartofseries Electronics;10, 353
dc.subject VoIP en_US
dc.subject voice-spam en_US
dc.subject nuisance call en_US
dc.title Detecting nuisance calls over internet telephony using caller reputation en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.3390/electronics10030353
dc.contributor.sponsor SFI en_US
dc.contributor.sponsor Horizon 2020 en_US
dc.contributor.sponsor ERC
dc.relation.projectid 13/RC/2094_P2 en_US
dc.relation.projectid 754489 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

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