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Acer America Corp. is a computer manufacturer of business and consumer PCs, notebooks, ultrabooks, projectors, servers, and storage products.


333 West San Carlos Street
San Jose, California 95110
United States


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July 21, 2021 |

Granite Implements Neustar Trusted Call Solutions in Compliance with STIR/SHAKEN Mandate

Neustar robocall mitigation and call authentication secure and elevate call experience

Neustar Inc., a global information services and technology company and leader in identity resolution, has implemented Trusted Call Solutions across the Granite Telecommunications network, including Certified Caller and Robocall Mitigation. The solutions help authenticate callers and combat illegal robocalls to ensure Granite’s multilocation enterprise and government agency customers benefit from secure, accurate and informed call experiences.

Neustar Trusted Call Solutions have enabled Granite to sign calls and manage end-to-end STIR/SHAKEN call authentication. These solutions help Granite secure its position within an ecosystem of trusted operators seeking to protect enterprise customers from unwanted and illegal robocalls, and enhance the call experience across landline, mobile and VoIP devices.

“We were delighted to be chosen by Granite to ensure there is no interruption of service for their customers across the U.S. and Canada,” said James Garvert, senior vice president of Communications Solutions at Neustar. “Once STIR/SHAKEN is widely adopted, we believe it will be leveraged to do more than just defeat robocallers. It offers many opportunities and is already being incorporated into the analytics used in fraud prevention. The assurance that it provides will have applicability to a variety of other problems in this space.”

“With its tried and tested industry expertise, Neustar enabled us to meet the FCC’s STIR/SHAKEN requirements well ahead of schedule,” said Granite CIO Chris Chapin. “In addition to its industry-leading solutions, the Neustar team was there every step of the way, guiding us through the entire process. We look forward to partnering with Neustar as the scope of STIR/SHAKEN expands, enabling us to continue to enhance our customers’ call experiences.”

Neustar is the industry leader in caller identification solutions, a co-author of the STIR standards, a key contributor to the SHAKEN framework and the exclusive operator of the ATIS Robocalling Testbed for SHAKEN/STIR implementations.

Granite implemented the following Neustar Trusted Call Solutions:

  • Certified Caller – This cloud-based solution offers automated caller identity validation by implementing the latest STIR/SHAKEN call authentication standards, allowing Granite to detect and flag illegally spoofed calls in real time to protect users from phone scams and support trusted communications.
  • Robocall Mitigation – This solution uses advanced call analytics, fraud modeling and numbering expertise to enable Granite to identify illegal calls originating in the network and stop them from reaching subscribers. Robocall Mitigation works alongside STIR/SHAKEN call authentication to help Granite identify unauthorized and suspicious use of phone numbers and detect trends and anomalies in calling patterns.

For more information about Neustar and its full Trusted Call Solutions suite, visit

About Granite
Granite delivers one-stop communications solutions to multi-location businesses and government agencies throughout the United States and Canada. The $1.65 billion company serves more than two-thirds of the Fortune 100 companies in the United States and has 1.75 million voice and data lines under management. Granite launched in 2002 and has grown quickly by helping businesses simplify sourcing and management of local and long-distance phone services with one point of contact and one invoice for all their office locations nationwide. Today, Granite is the leader in aggregating Plain Old Telephone Services (POTS) and has extended its unique value proposition – “one company, one contact, one bill” – to include a range of advanced business communications services, including SD-WAN, wireless WAN, hosted PBX, SIP trunking, POTS replacement, mobile voice and data, mobile device management, managed security, network integration and more. Granite employs more than 2,400 people at its headquarters in Quincy, Mass., and nine regional offices nationwide. For more information, visit

About Neustar
Neustar is an information services and technology company and a leader in identity resolution providing the data and technology that enable trusted connections between companies and people at the moments that matter most. Neustar offers industry-leading solutions in marketing, risk, communications and security that responsibly connect data on people, devices and locations, continuously corroborated through billions of transactions. Neustar serves more than 8,000 clients worldwide, including 60 of the Fortune 100. Learn how your company can benefit from the power of trusted connections here:

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