Robocall Mitigation

Robocall mitigation helps communications service providers (CSPs) prevent illegal robocalls from originating on their networks and reaching consumers by blocking or tagging potentially fraudulent calls.

Robocall mitigation leverages behavior analytics and tracking of abnormal and unexpected calling patterns to detect high-volume robocalling, spoofing and suspicious call activity.

Real-time alerts provide CSPs with notifications about calls from numbers that look suspicious, including those from unassigned, inactive and do-not-originate telephone numbers (TNs) so action can be taken quickly. Such calls can be blocked or tagged as spam.

The ability for businesses to designate certain verified inbound-only Do-Not-Originate phone numbers is an important component of robocall mitigation, functioning as a proactive filter against fraud. A DNO list acts as an "outbound-calling blacklist" for numbers — such as inbound-only customer service lines, bank fraud hotlines or unallocated numbers — that should never legitimately originate calls. By identifying these, carriers can instantly recognize and block spoofed calls that often impersonate trusted entities to scam consumers.

Robocall mitigation solutions vary widely by country.

While the STIR/SHAKEN call authentication framework is used across the United States and in Canada, every country has unique requirements and regulations that impact the selection of call authentication standards and solutions. Many businesses will use the STIR portion of STIR/SHAKEN to implement their call authentication framework.

Robocall mitigation is just one, very important piece of the puzzle when it comes to restoring trust in the phone channel. End-to-end call authentication and rich branded calling — along with collaboration across the entire telecom ecosystem — are all components of a global solution.