[VoiceOps] Looping detection and prevention

Hello list, We are wondering how other VoIP providers/carriers handle incoming SIP call looping. What detection and remediation solutions is the general community out there currently using or have heard good things about. Right now we are currently thinking of a SNORT or some other IPS based solution that can match on repeated SIP requests matching the same caller/called within a certain time frame and then perform some sort of remediation. Any thoughts? Thanks!