VoiceSentry is an application-aware security system that protects voice networks against Telephony Denial of Service (TDoS) and other malicious attacks. The VoiceSentry system monitors voice traffic (both TDM and SIP) in real time to identify suspicious, malicious and machine-generated calls, then allows the network management team to take appropriate real-time defensive actions. It gives enterprises and government agencies a way to safeguard their voice networks from new SIP and voice-based attacks, prevent networks costs from escalating and keep services running for their customers.
Strong Voice Network Security
The VoiceSentry's anomaly detection function defends call centers by analyzing call-signatures and Call Detail Records (CDRs) to detect voice SPAM and TDoS attacks. It mitigates those attacks with a Rules and Policy Change Engine as well as intelligent media interception. The VoiceSentry system learns behaviors as it goes and uses what is has learned about malicious traffic to prevent future attacks. The system also includes an optional feature for voice CAPTCHA that screens out machine-generated voice traffic using a series of audio prompts/challenges similar to the data CAPTCHA tools used on commercial Web sites like ticket reservation systems. Depending on the results of the CAPTCHA test, the VoiceSentry system can disconnect the call or route it to an appropriate destination.
VoiceSentry Solution Features
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Sophisticated management and reporting tools including visual dashboard, alarm center and historical analysis
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Configuration and policy management for CAPTCHA complexity settings, rules input, alarm thresholds and system settings
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System features two unique solution components: VoiceSentry Analyzer for call analysis/anomaly detection and VoiceSentry Guardian for CAPTCHA processing
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Additional security software elements available for the Sonus PSX Centralized Route Server, NBS5200 and NBS9000 Network Border Switches.