Restore Trust with Digital Call Authentication


Phone scams are increasingly targeting innocent consumers, who are duped out of an estimated $350 million per year. Fraudsters are more cunning in the ways they deceive by spoofing, or changing, the caller ID to look like a neighbor, a local business, a trusted brand, or even a government entity. Subscribers have lost trust in this key communication channel and don’t answer if they’re not certain who is calling.

In Canada and the U.S., regulatory authorities are mandating that communication service providers do more to protect consumers.

  • In November 2017, the Federal Communications Commission (FCC) instituted new rules to allow voice service providers to proactively block ‘likely fraudulent’ robocalls.
  • In January 2018, the Canadian Radio-Television and Telecommunications Commission (CRTC) mandated that voice service providers should implement authentication and verification of caller ID for VoIP calls no later than March 31, 2019.
  • In May 2018, the FCC accepted recommendations of the North American Numbering Council (NANC) that within a year a Governance Authority and Policy Administrator be operational to oversee implementation for STIR/SHAKEN, with some providers capable of signing and validating STIR/SHAKEN calls.

Regulatory bodies and industry groups cite STIR caller authentication standards and the SHAKEN framework as the the most viable way to provide consumers with a measure of trust in the displayed caller name and number

Deliver Certainty with Caller ID

Neustar Certified Caller brings together expertise in caller authentication and verification, secure identity management, and the latest in caller ID to enable communication service providers to verify a call as a ‘trusted communication’. By seeing a seal of approval, subscribers can have more confidence in who is calling and gain trust to answer the call.

Digitally Sign Calls to Detect and Warn of Call Spoofing

Neustar Certified Caller adds a second layer of trust to a call by authenticating the caller identity and verifying the caller certificates between the originating and terminating carrier.

Leveraging the STIR/SHAKEN framework, Certified Caller automates the end-to-end process of generating a private/public key pair for signing, requesting a STI certificate from the Certification Authority, receiving the signed public key certificate, and propagating the certificate as part of the signaling stream. The terminating carrier is then able to verify its caller data by matching the public key certificate. If the certificate is valid, the called party may be presented a visual notification such as a modified Caller ID prefix of “[V]”, or in the case of mobile displays, other images (e.g., a check mark). Conversely, calls that fail verification may display a negative notification.

Caller Intelligence

Neustar Certified Caller and Robocall Mitigation solutions help deliver better subscriber call experiences:

  • Authoritative Data: Reliable, proven data corroborated with a broad range of sources, identify, flag and classify risk of a phone number, and calculates a fraud score
  • Advanced Fraud Detection: Behavior analysis and tracking of abnormal and unexpected calling patterns to detect high volume robocalling, spoofing, and suspicious call activity
  • Subscriber Notification: Override the Caller Name 15-character display to warn subscribers of suspicious calls across 800+ operators (landline, cable, mobile & VoIP)
  • Call Blocking Support: Identification of invalid, unallocated, and unassigned numbers per FCC Report & Order (Nov 2017) to accurately determine which calls to block
  • Blacklisting: Allows verified enterprises to specify inbound-only Do-Not-Originate numbers to help identify caller ID spoofing
  • Register Verified Business Numbers: Allow verified enterprises to specify legitimate outbound numbers to prevent inadvertent blocking or spam mislabeling
  • Web-Based Dashboard: Provides near real-time access to service metrics and analytics
  • Flexible Policy Engine: Defines Caller Name override policies based on regulatory rules and customer requirements

Based on Industry Standards

Meeting the STIR/SHAKEN industry standards, Certified Caller leverages the latest developments in caller authentication.

Neustar is a co-author of the STIR standard and is the exclusive and official host of the ATIS Robocalling Testbed, which enables handset manufacturers, service providers, and app developers to test and validate the effectiveness of their planned implementation of the standards.

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