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Voice Defense Professional Service

Keep your call center protected and productive.

Stop voice threats from impacting productivity.

Increasing robocalls, telephony denial of service (TDoS) attacks and other threats make it hard to operate a contact center efficiently.

Verizon Voice Defense Professional Service adds a layer of contact center security to help reduce no-value calls and boost productivity. The solution can help you control infrastructure expenses, protect against TDoS attacks—potentially a form of ransomware—and help reduce the risk of fraudulent activity.

What is Voice Defense Professional Service?

Voice Defense Professional Service is a network-based inbound voice security solution that protects against TDoS attacks, as well as other profitability threats such as arbitrage, PIN hacking, traffic pumping, spoofing, phishing, spamming and more. We not only can monitor your inbound traffic, but we have visibility across the entire Verizon network, including wholesale ingress routes.

How does Voice Defense Professional Service work?

Voice Defense Pro enables you to monitor, analyze and understand your inbound telephony traffic and its origins. It helps you take proactive steps to mitigate risks by blocking or redirecting calls before they disrupt your company’s infrastructure. It requires no customer premises equipment, so setup is quick and easy.

Features & benefits

Voice Defense Pro is a full-service voice security solution. Our teams work closely with you to establish the toll-free numbers to monitor and their expected and historical use so that the solution can implement features such as:

  • Real-time monitoring. Get alerts based on unusual or unexpected behavior
  • In-network mitigation. Filter out calls before they reach your contact center
  • Monthly reports. Get easy-to-read charts, notes on interesting activity, details on actions taken and recommendations


professional services consultants across the globe


years of contact center experience


times we were named a leader in Gartner Magic Quadrant Managed Security Services ¹

Understand the Voice Defense Professional Service process.

From setup to the filtering of bad calls, nine steps can help you achieve better security for your contact center.

1 Gartner, Magic Quadrant for Managed Security Services, Worldwide, Toby Bussa, Kelly M. Kavanagh, Sid Deshpande, Pete Shoard, 2 May 2019.

The Gartner report is available upon request from Verizon Gartner does not endorse any vendor, product or service depicted in our research publications, and does not advise technology users to select only those vendors with the highest ratings or other designation. Gartner research publications consist of the opinions of Gartner's research organization and should not be construed as statements of fact. Gartner disclaims all warranties, expressed or implied, with respect to this research, including any warranties of merchantability or fitness for a particular purpose. GARTNER is a registered trademark and service mark of Gartner, Inc. and/or its affiliates in the U.S. and internationally, and is used herein with permission. All rights reserved.

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