Voice-Based Authentication
Enhance security with voice-based OTP delivery. Send one-time passwords via automated voice calls for authentication, verification, and secure access. Perfect for users who prefer voice over SMS or in areas with poor SMS delivery.
Voice OTP Features
Secure, reliable, and user-friendly voice-based authentication.
Enhanced Security
Voice OTP provides an additional layer of security that's harder to intercept than SMS, making it ideal for high-security applications.
Instant Delivery
OTP codes are delivered instantly via automated voice calls with clear, natural-sounding speech in multiple languages.
Customizable Length
Configure OTP length from 4 to 10 digits, set expiration times, and customize retry attempts based on your security requirements.
High Success Rate
Voice calls have higher success rates than SMS in many regions, ensuring your users can always receive their authentication codes.
Global Coverage
Deliver voice OTPs to users worldwide with our global voice network and local number support in 100+ countries.
User-Friendly
Perfect for users who prefer voice over text, elderly users, or those with visual impairments who need audio-based authentication.
Voice OTP Use Cases
Discover how different industries use voice OTP for secure authentication.
Banking & Finance
Secure login, transaction verification, and account access with voice-based OTP.
- Account login
- Transaction approval
- Password reset
- Account recovery
E-commerce
Verify purchases, account creation, and payment authentication.
- Purchase verification
- Account registration
- Payment confirmation
- Order updates
Healthcare
Secure patient portal access and appointment verification.
- Patient portal login
- Appointment confirmation
- Medical record access
- Prescription verification
Government Services
Citizen authentication for online government services and benefits.
- Service access
- Benefit verification
- Document requests
- Identity confirmation
Enterprise Security
Employee authentication and secure system access.
- VPN access
- System login
- Admin verification
- Secure file access
Telecommunications
Account management and service activation verification.
- Account access
- Service activation
- Plan changes
- Support verification
Why Choose Voice OTP
Discover the advantages of voice-based authentication over traditional methods.
Higher Security
Voice calls are harder to intercept than SMS, providing enhanced security for sensitive applications.
Better Accessibility
Perfect for users with visual impairments or those who prefer audio-based communication.
Reliable Delivery
Voice calls work even in areas with poor SMS coverage, ensuring consistent OTP delivery.
Fraud Prevention
Reduces SIM swapping and SMS interception attacks that are common with text-based OTP.
Global Reach
Works worldwide without dependency on SMS gateways or carrier-specific limitations.
Voice OTP Pricing
Secure authentication pricing that scales with your business.
Starter
- Up to 1,000 OTP calls/month
- Basic voice delivery
- Standard security
- Email support
- API access
- Basic analytics
Business
- Up to 10,000 OTP calls/month
- Multi-language support
- Enhanced security
- Priority support
- Advanced API
- Detailed analytics
- Custom voice options
Enterprise
- Unlimited OTP calls
- Global delivery
- Enterprise security
- Dedicated support
- Custom integrations
- Real-time monitoring
- SLA guarantee
Frequently Asked Questions
Find answers to common questions about our voice OTP solution.
How quickly are voice OTPs delivered?
Voice OTPs are delivered instantly, typically within 5-10 seconds of the request. The call connects immediately and the OTP is spoken clearly in the user's preferred language.
What happens if the user doesn't answer the call?
If the call isn't answered, the system can automatically retry after a specified interval. You can configure the number of retry attempts and the time between retries.
Can I customize the voice and language?
Yes, you can choose from multiple natural-sounding voices and languages. You can also customize the message format and add your company branding to the voice prompt.
Is voice OTP more secure than SMS OTP?
Yes, voice OTP is generally more secure as it's harder to intercept voice calls compared to SMS messages. It's also not vulnerable to SIM swapping attacks that affect SMS-based OTP.
How do you ensure the OTP is heard clearly?
We use high-quality text-to-speech engines with clear pronunciation. The OTP is repeated multiple times during the call, and users can replay the message if needed.
Ready to Enhance Your Security?
Implement voice-based OTP authentication today and provide your users with a more secure and accessible authentication experience.