SentryPeer

SentryPeer is a fraud detection tool designed to protect SIP servers from malicious activity by tracking and logging attempts to make phone calls from bad actors. Its primary use case involves monitoring outbound calls from VoIP PBXs to notify users of potentially harmful interactions based on an extensive database of probing phone numbers. Notable features include a RESTful API for easy integration, real-time notifications to service providers, and support for Syslog and Fail2ban for enhanced security logging and management.