Get the best delivery rate with voice verification
Deliver One Time Passcodes via voice text-to-speech, making sure numbers can still be verified regardless of accessibility or fixed line issues.
The power of voice verification
Simple yet secure
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Reach customers on any device
Make sure you can reach users on any device. If SMS or Flash Call doesn't cut it, voice verification can step in to save the day & deliver the OTP code. -
Country customization
Verifying users on a global scale? No worries, with Sinch you can change your voice prompt depending on where in the world you’re sending to, making sure you always hit the mark when it comes to local customs & language. -
Global reach
Verify users around the corner or around the world! Make sure your voice verification gets delivered to end users no matter where they are - with Sinch you can reach more than 200 countries & territories.
Features
Customizable verification based on your needs
Multiple language support
Let us worry about which language your end user needs their voice call in – our API has it all under control!
Verification compliance
Verify phone, landline or sight impaired individuals & make sure you’re keeping in line with the American Disabilities Act (ADA) in the US.
Callback function
Need confirmation of verification? No problem! We’ve got you covered with a quick callback to your backend when end users have been verified.
Devoted to data protection
Strong privacy, data protection and security are at the heart of our mission - so of course we do our best to make sure we're compliant with GDPR and other privacy policies.
Start elevating your business with Voice Verification
Be in control of your business by adding an additional layer of access security. We are also available to discuss your business needs and find the right solution for you.
Related products
Optimize your conversion rate by combining our various verification methods
