Real-Life Use Case
Eliminate Unwanted Voice Traffic
Manufacturing
This is a real-life Use Case of a Mutare Customer and provides a high-level summary of the scenario and business problems resolved with the Mutare Voice Traffic Filter solution.
The Client
Specialty chemical, fiber, and resin research and production organization with operations in 31 countries, an employee force of more than 11,000, and net worth topping $4B.
Problem Definition
A growing abundance of distracting spam and scam calls were hitting desk phones of plant supervisors, interrupting normal administrative duties, and creating significant safety concerns.
The Story
Supervision of plant operations for this enterprise is provided 24/7 through trained personnel who oversee general operations from control centers. They are tasked not only with assuring operational efficiency but also plant safety and security. However, in recent years, they have experienced a growing onslaught of spam and scam call activity ringing into their desk phones – according to the company’s network administrator, as many as 40 unwanted calls per day, some perceived as potentially nefarious, could be hitting a single line. These calls were not only disrupting normal administrative activities, but they were also taking attention away from control systems monitoring – a critical concern when dealing with volatile chemicals and the disastrous impact should a fire or spill go unnoticed. Plant leadership agreed to a Mutare Voice Traffic Assessment which revealed an unusually high percentage of unwanted calls ringing into supervisors’ desk phones. A Proof of Concept implementation of the entire Voice Traffic Filter five layers of protection confirmed that more than 14% of incoming calls were, indeed, unwanted and included malicious spam storms and other potentially nefarious intrusions. The value of Mutare’s Voice Traffic Filter in terms of plant safety and employee security was easily recognized and the purchase finalized.
%
Total Unwanted Traffic
# of Unwanted Calls Blocked*
Nefarious Calls Diverted*
* Annualized

Key Decision Points
- Eliminates Threat to Plant Safety and Security
- Spam Storm Mitigation
- Voice Fraud Detection and Mitigation
- Improved Operational Efficiency
These considerations, combined with Mutare’s solution capabilities, uncomplicated implementation, and unrivaled customer support, made a clear case for the purchase of the Mutare Voice Traffic Filter.
About Mutare Voice Traffic Filter
The Mutare Voice Traffic Filter (VTF) is enterprise-class software built to provide multiple layers of protection against unwanted traffic. VTF creates a barrier at the network edge, ensuring that malicious and nefarious traffic does not gain access to your network. Our open architecture is designed to work seamlessly with just about every unified communications platform, including Cisco, Avaya, Mitel, Nortel and more.
Key Features
- STIR / SHAKEN Filter
- Proprietary Dynamic DB Filter
- Spoof Radar Filter
- Voice CAPTCHA Verification
- Custom Rules Filter
- Inbound/Outbound Traffic Manager
- Personal Blocklist
- Admin Dashboard
- Admin Email Alerts
- Embedded CDR Reporting (Call Detail Records)
Quick Links
Voice Threat Survey 2026
Understand how technology and cybersecurity leaders view Voice Security as organizations face growing threats, declining trust, and increasing risk.
Voice Security for Cisco
Protection for: CUCM, CUBE, Webex Contact Center, Webex Calling
Voice Security in the Contact Center
In this 45-minute Webinar, our Voice Security experts will delve into trending voice-based threats, which often comprise up to 25% of inbound call traffic, and how you can stop them.
Higher Education, a Primary Target of Voice-Based Attacks
Higher Education is being targeted. Why? Because Educational Institutions create a ripe, irresistible prey for cybercriminals looking for big opportunities with limited resistance.
Financial Institutions Bracing for Tsunami of Voice-Based Cyber Attacks
Protecting the enterprise telephone system from voice-based attacks may be the lynchpin in the battle against the growing wave of cyber-threats in the form of social engineering, vishing and ransomware. It is time to take Voice Security seriously.
Voice Network Threat Survey 2024
The 2024 Voice Threat Survey seeks to understand how technologists and security experts view Voice as a threat vector, and as an organizational asset (critical Infrastructure) to be protected and defended.
