"Your voice is your password. Only the real you can answer."
A unique numeric/alpha code is created by our secure backend system, valid for only one authentication attempt.
The system delivers the OTP using AI-powered Text-to-Speech (TTS) with randomized voice characteristics.
The user must repeat the code using their microphone within a limited time window.
Speech-to-Text (STT) checks the accuracy of the spoken OTP while voice biometrics verify the speaker's identity.
The system grants or rejects access based on both content match and voice biometric scores.
Prevents recorded playback - Cloned voice won't respond correctly in real time
Adds live interaction layer - To authentication that's hard to fake
Builds trust - Between user and system with voice-based verification
Protects presence - Ensures the real user is present, not just their credentials
Multi-dimensional security - Combines what you know with who you are
Experience our Voice-Back OTP Challenge. The system will generate a code, speak it to you, and you'll need to repeat it back.
Listen carefully to the spoken OTP
Integrate our Voice-Back OTP Challenge into your authentication flow and take your security to the next level.