A Telephony Denial of Service (TDoS) attack is an attempt to make the telephone system inaccessible to users by blocking incoming and/or outgoing calls. To do this, attackers successfully overflow all available telephone resources, so that there is no free telephone line.
Attackers use TDoS attacks, demanding a ransom to stop the attack. TDoS are also used to block bank notifications about unauthorized transfers of funds, etc. Sometimes TDoS attacks occur as a result of errors or peak loads of legitimate users. TDoS attacks can be short or last for several days.
Regardless of the TDoS attack’s nature, we offer an effective remediation set for peak loads:
Analysis and testing of telecommunication security A) PBX IP interface test in gray-box mode. Simulation of various attacks on VoIP. B) Сonfiguration аnalysis in white-box mode. The report includes recommendations for addressing security vulnerabilities and configuration flaws. | |
Implementation of call filtering and voice menu Development and implementation of a system for recognizing suspicious incoming calls based on Machine Learning. Building an Interactive Voice Response (IVR) where suspicious calls will be automatically redirected. | |
Implementation of a fault-tolerant telecom platform Development of a fault-tolerant platform with the use of several trunks to different telecom operators. Consultations on how to make arrangements with the operators so that they filter calls and put them in blocklists in addition to local protection. |
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