Transaction Network Services (TNS), a recognized leader in call authentication and robocall prevention, has unveiled TNS Enterprise Voice Security, a next-generation solution designed to protect enterprises against sophisticated voice-based fraud. The platform addresses threats such as vishing, AI-driven voice cloning, impersonation scams, and IVR exploitation, which are increasingly targeting enterprise contact centers.

Fraudsters are ramping up attacks on mid-to-large businesses by launching highly convincing vishing campaigns and Telephony Denial of Service (TDoS) attacks, exploiting vulnerabilities in Interactive Voice Response (IVR) systems and voice networks. According to TNS, nearly 10% of all inbound voice traffic is deemed high risk, making it a pressing concern for CISOs, customer service leaders, and executive teams.

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“While enterprises have invested heavily in securing data networks and email systems, voice channels—particularly inbound calls—have long been neglected from a cybersecurity perspective,” said Seth Walton, General Manager of TNS Communications Market. “Our Enterprise Voice Security solution delivers full-spectrum protection for inbound traffic, ensuring customers and businesses are safeguarded from fraud and identity theft.”

Core Components of TNS Enterprise Voice Security

The new platform combines two primary capabilities—TNS Voice Firewall and TNS Inbound Authentication—backed by TNS’ managed services. Built on a zero-trust security framework, the solution supports compliance and resilience while delivering measurable protection for enterprises and CCaaS providers.

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Key features include:

  • 360-Degree Call Protection – Uses advanced spam detection algorithms to block spoofed and fraudulent calls, assign reputation scores, and identify AI-generated deepfake voices—eliminating the need for traditional voiceprint authentication.
  • IVR Safeguarding – TNS Voice Firewall automatically detects and blocks robocalls, spam, impersonation attempts, TDoS attacks, and silent AI bot calls, preventing disruption and fraud.
  • Boosting Agent Efficiency – TNS Inbound Authentication replaces traditional knowledge-based verification with passive authentication via API, reducing call queues, cutting operational costs, and enhancing the customer experience.
  • Enterprise-Wide Call Monitoring – Delivers real-time visibility into call traffic with continuous monitoring, reporting, and support from TNS experts to mitigate malicious activity.

With these capabilities, TNS Enterprise Voice Security closes a critical gap in enterprise cybersecurity by fortifying inbound voice channels—helping organizations strengthen customer trust, improve operational efficiency, and stay ahead of rapidly evolving fraud tactics.

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