Robocall Mitigation Solutions

Restore Trust to Voice with Robocall Protection

Empower Subscribers

Trust between you and your subscribers is mission critical for your business. As robocalls, spam and user fraud increase across networks, restore that trust by arming your subscribers with the data and protection they need to block unwanted communications.

When your subscribers need to trust you, trust TNS to manage complexity and provide you with the insight you need to enhance customer experience. TNS has one of the most extensive user bases of any robocall protection solution, leveraging information from more than one billion call events a day.


Ready to Learn More?

Discover more about how TNS robocall protection services help your subscribers and expand your network.

Leading Analytics Solution

Get the Data You Need via TNS Call Guardian Analytics

Robocall Blocking Capabilities

TNS Call Guardian is an industry-leading analytics solution that uses cross carrier real-time call events and crowd-sourced data to create accurate and comprehensive call reputation profiles. These profiles differentiate legitimate users from abusive, fraudulent or unlawful ones.

TNS Call Guardian has a leading-edge platform in robocall blocking accuracy with capabilities for Do Not Originate, invalid, unallocated, unassigned numbers, machine learning and STIR/SHAKEN. Deliver a better customer experience to your subscribers, which can help reduce churn, enhance your reputation and win more business.


Accuracy with STIR/SHAKEN Attestation

Combat Robocall Protection Pressure

STIR/SHAKEN ensures the number of a telephone call is secure by identifying caller ID spoofing, authenticating the enhanced caller ID at the origination point and validating at the termination point. For more on how to use STIR/SHAKEN to respond to increasing robocall protection pressures, contact TNS.


Enhance Experience

Keep Loyal Customers

When subscribers are happy, you win. Using Call Guardian helps customers understand the reputation of incoming calls, makes them less likely to call into customer care and reduces the number of reported spam calls for your care team to address. Enhancing your robocall protection keeps customers loyal.


Protect Your Reputation

Increase New Business Opportunities

TNS Call Guardian maintains all standards of data encryption, consumer and carrier privacy policies while providing you with the robocall mitigation analytics you need. Increase Net Promoter Score and win new business by providing your subscribers with the tools to combat unwanted calls.


Flexibility in Deployment

The Right Fit for Your Business

As with all TNS’ infrastructure-as-a-service solutions, choose what’s right for your network from flexible deployment options, including TNS intercarrier signaling and routing, data from the VoLTE registry, STIR/SHAKEN either carrier deployed, hosted or on-prem and more. Contact TNS to determine what’s right for you.

Where More Data Means Higher Accuracy

TNS Call Guardian has the largest base of covered subscribers in the United States and coverage in key global carrier networks. This not only helps you scale, but also improves accuracy and speed of robocall identification and remediation.

Of the top five wireless carriers deployed.
Call events analyzed every day.
Operators with call event analysis and insight daily.
Telephone numbers with reputation profiles.

Solutions for Smaller Carriers

Robocall Protection with TNS Call Guardian Authentication Hub

Managed End-to-End Service

Smaller carrier looking for the same data that TNS Call Guardian applies? Look no further than TNS Call Guardian Authentication Hub. TNS CGAH combines the capabilities of Call Guardian Analytics and Metaswitch’s MetaSphere Qcall SIP application server, a division of Microsoft, that analyzes real-time call events and enables you to differentiate legitimate users from those with abusive or fraudulent profiles. Managed end-to-end, the CGAH allows you to provide the information your subscribers need for robocall protection.


Power Complete Compliance

Reduce Your Network Costs

TNS’ call authentication framework helps operators meet all FCC requirements, follow the direction of Tier-1 providers and ensures full compliance with standards in ATIS test bed. All while reducing network costs by blocking calls in the network allowed by the FCC and CRTC.


Engage with an Elevated Platform

A Fully Managed Solution

Leverage a fully managed network-level solution that can be used to seamlessly deploy branded calling and enhanced caller ID.


Get Detailed Insights

1.5 Billion Daily Call Events

TNS’ call authentication solution enables analysis of over one billion call events daily across more than 500 operators and caller reputation on over one and a half billion telephone numbers.

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Scale with a Flexible Solution

Can Work for Any Size

Built on an OPEX-based model, TNS’ call authentication solution can scale up or down to any size network, supporting multiple network protocols (SIP, HTTP) and integrates with all major network elements.

A Paid For Subscriber App

Change the Way We Connect with Enhanced Caller ID

Improve the Customer Experience

Enhanced Caller ID empowers identity and facilitates trust with your key asset: your network via a paid app that subscribers can activate on their phone handset. Provide your subscribers with more data – with name, text, spam, and business identification. This robocall protection tool can help enhance experience, keep loyal customers and win new business.


Deliver Name, Spam and Business ID

Knowledge is Power for Subscribers

Empower your subscribers with calling name information on every call, even if the number is not in their contact list.

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Reduce Calls into Customer Care

Fewer Open Fraud Investigations

Reduce the calls into your care organization to report spam, which can help reduce the burden on your care team to investigate fraud.


Mitigate Customer Churn

Superior Customer Experiences

Deliver the best experience for your subscribers regardless of terminating device and decrease the chance they fall prey to scams and fraud.


Powerful Features for Subscriber Security

Empower Subscribers

Enable your subscribers to manage spam lists, block calls by level of risk and send to voicemail.

Contact Us

Contact TNS to learn more about how our robocall protection services enhance your reputation and expand your business.

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