Fail-Safe Authentication

Reliable Voice OTP
for Every User.

Don't let SMS delays or DND filters block your users. Our Voice OTP delivers verification codes via automated phone calls, ensuring 100% delivery for your apps and portals.

The Smart Alternative to SMS

DND-Proof Delivery

SMS OTPs often get blocked by "Do Not Disturb" (DND) settings. Voice calls bypass these filters to ensure every user gets verified.

Global Accessibility

Perfect for elderly users or those with visual impairments. Automated voices read out the OTP clearly for better accessibility.

Higher Security

Voice OTPs are harder to intercept than text messages, providing an extra layer of security for high-value transactions.

How Our Voice API Works

01

Request

Your app sends a request to InfoTek's API with the user's phone number.

02

Generate

Our system generates a unique 4-6 digit code and initiates a call.

03

Voice Call

The user receives a call, and the automated voice reads the code twice.

04

Verify

The user enters the code into your app, and access is granted instantly.

Ready to integrate Voice Verification?

Get access to our developer sandbox and start sending Voice OTPs today.