TNS Call Guardian STIR/SHAKEN Capabilities

Robocalling Epidemic

The FTC received 4.5 million robocall complaints in 2017, up from 3.4 million the prior year. Robocall bad actors continue to adjust their strategy to elude detection. The time is now to improve your subscribers’ call experience.


STIR and SHAKEN use digital certificates, based on common public key cryptography techniques, to ensure the calling number of a telephone call is secure. STIR/SHAKEN will identify Caller ID spoofing, a common technique used by robocallers, by authenticating the Caller ID at the origination point of the call, then validating this Caller ID at the termination point. Operators can use STIR /SHAKEN, in conjunction with Call Guardian real-time analytics, to determine the validity and intent of a call.

Regulators are increasingly applying pressure to carriers to solve the robocalling problem. In the US, FCC Chairman Pai sent letters to 11 voice providers asking those that had not yet established concrete plans to implement the Signature-based Handling of Asserted Information Using toKENs (SHAKEN) framework and the Secure Telephone Identity Revised (STIR) standards to implement such standards without delay. In Canada, the CRTC has mandated deployment of STIR/SHAKEN by March 2019.

Deployment Options

  • Carrier deployed STIR/SHAKEN solution – ingestion of verstat parameter into Call Guardian analytics engine
  • Full STIR/SHAKEN solution in hosted environment
  • Full STIR/SHAKEN solution on-premise
  • Pre-SHAKEN/STIR solution that authenticates calls originating from networks that use TNS Signaling Hub
  • Full compliance with standards in ATIS test bed
    • STIR: RFC 8224, RFC 8225, RFC 8226
    • SHAKEN: ATIS 1000074, ATIS 1000080, ATIS 1000082

Click image below to request a copy of the 2019 TNS Robocall Investigation Report.

TNS Call Guardian STIR/SHAKEN Capabilities Information Sheet

Sign up and get our product information sheet for TNS Call Guardian STIR/SHAKEN Capabilities today.

Please select yes if you are happy for TNS to hold your data for future communication purposes.

TNS Telecom Division @TelecomTNS
14 hours ago

What state files the most #robocall complaints with the @FTC? Find out in this interactive map:…


TNS Telecom Division @TelecomTNS
16 hours ago

While Tier 1 #telecom carriers are moving towards #STIRSHAKEN implementation, the majority of cross-carrier U.S.…


  • Sprint is proud to be partnering with TNS and Cequint to deliver best-in-class robocall identification to improve the experience of our customers. This technology provides a scientific and accurate way of offering a robocall protection solution that integrates seamlessly with our Premium Caller ID service.

    Mark Yarkosky, Director Product Management, Sprint

Details of your local TNS representative can be found on our contact page