SIP & Network
The percentage of call attempts that are actually answered, used as both a route-quality measure and a fraud indicator.
Normal ASR varies by destination and traffic type but commonly falls between 40% and 70%. Illegal robocall and scanning traffic produces very low ASR because most calls go unanswered or are blocked.
An unusually high ASR paired with very short durations can indicate answering-machine detection or auto-answer equipment rather than genuine conversations.
A sudden ASR collapse on a customer's traffic usually means either their numbers are being blocked or their campaign is not legitimate — both need investigating today, not next month.
The mean length of answered calls, used alongside ASR to distinguish genuine conversations from automated or fraudulent traffic.
The rate at which new call attempts are offered to a network, and one of the clearest early indicators of an automated dialing campaign.
An automatically dialed call that delivers a pre-recorded or artificial voice message, legal only with the right consent or exemption.
Analytics-driven tags such as 'Scam Likely' or 'Spam Risk' that terminating carriers and handsets apply to inbound calls.
SipShield scores live SIP traffic with patented AI so the controls behind this term run automatically — and leave the audit trail regulators expect.