Phonexia Voice Guardian™
Phonexia Voice Guardian™ is a voice fraud prevention and authentication platform
built as an alternative to Nuance Gatekeeper — identifying deepfakes and fraudsters,
authenticating callers in seconds, and staying ahead of AI-driven voice threats.
Real-Time & Post-Call Fraud Prevention
Data Control & Privacy
Intuitive UI for Agents & Analysts
Phonexia Voice Guardian™ Features
Real-Time & Post-Call Fraud Prevention
Deepfake detection catches synthetic and cloned voices the moment they speak. Speaker clustering exposes fraudsters operating across multiple accounts and identities — even ones your team hasn't caught yet.
Instant Voice Authentication
Genuine customers get verified passively, from less than two seconds of speech — no extra questions, no friction. Just shorter handle times and a smoother call.
Absolute Privacy & Data Control
Your voice data stays yours. Phonexia cannot access it without encryption keys that stay in your hands. Your cloud data lives safely in the region of your choice.
Intuitive UI for Agents & Fraud Analysts
Contact center agents get real-time on-screen notifications that identify genuine customers and flag suspected fraudsters. Fraud analysts get a dedicated post-call interface to trace fraudsters across accounts.
We Handle the Entire Migration for You
Mapping
Phonexia maps your current setup — call volumes, existing fraud tools, integration points, and compliance requirements. This gives us a clear picture before we design a bespoke migration plan.
Testing
Phonexia evaluates and validates Phonexia Voice Guardian™'s performance on your calls in a secure testing environment, fully under your control, to confirm it meets expectations before anything goes live.
Migrating
Phonexia handles the entire migration for you — we create new high-quality voiceprints from call audio you already hold. We ensure minimum impact on customer experience and daily operations.
Switching
Phonexia Voice Guardian™ runs alongside your current system first. Once validated and approved, we do the switch. Your customers authenticate seamlessly from their very first call and your analysts won’t need extensive retraining.
20+ Years of Voice Experience
We have spent over 20 years at the forefront of speech technology, building the voice biometrics and speech recognition software that governments and enterprises rely on.
18+ Years of NIST Excellence
Since 2008, we've continuously put our accuracy to the test in NIST evaluations, refining how machines understand the human voice every round.
Military-Grade Reliability in 60+ Countries
Our solutions are trusted to process audio at scale in many demanding environments — proven in forensic, government and enterprise use since before deepfakes existed.
A real conversation with a voice biometrics expert
A first look at how migration from Gatekeeper would work for your setup
No commitment required
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