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Single HTTP API Call
Trigger a voice OTP with one endpoint — the same API you already use for SMS OTP.
No DLT Required
Voice OTP for Reliable Verification
When an SMS does not arrive, an automated call reads the code out instead. Same API, works on feature phones, and reaches numbers where SMS delivery is weak.
- Spoken OTP Delivery
- Code Read Out Twice
- Multiple Languages
- Works On Feature Phones
- Single API Call
- Automatic Retries
- Voice OTP From 32 Paise
Incoming Call
WebsHost Verification
Ringing…
Your Voice OTP is
4 8 2 9 1 3
Read out twice · Valid for 5 minutes
Built as a production verification channel, not an add-on
Single HTTP API call, multi-language playback, configurable retries, and full delivery status visibility — everything you need for reliable voice verification.
English, Hindi & Regional
The code is read out in the language your customer uses, including regional Indian languages.
Configurable Retries
Set automatic retries if the call is not answered, so the OTP still reaches your customer.
Reaches DND Numbers
Voice OTP calls are permitted to DND numbers, because verification is user-initiated.
Delivery Status API
Query the status of every call programmatically and reconcile verification events.
No DLT Required
Voice OTP does not need DLT registration — start calling customers immediately.
API Key Authentication
Secure your integration with API key authentication and IP allowlisting.
Available 24x7
Voice OTP calls can be triggered round the clock, including late-night signups.
Voice OTP Plans
Delivery based charging. A call that is not picked up costs you nothing.
Why Choose Us
When the SMS does not arrive, the phone rings instead
Some percentage of your OTP messages will always fail: a weak signal, an overloaded operator, a full inbox, a handset that filters unknown senders. Every one of those is an abandoned signup or a failed payment. A voice call closes that gap.
The same API you already use for SMS OTP takes one extra endpoint. Trigger the call after your SMS timeout, and the customer hears the code read out twice in the language they use. It works on the oldest feature phone in the market and needs no data connection at all.
Code Read Out Twice
The OTP is spoken twice in the call, so customers don't have to replay it.
Multi Language Playback
English, Hindi and regional Indian languages available out of the box.
Works On Any Handset
No app, no data connection, no smartphone required — any phone can receive the call.
No DLT Paperwork
Voice OTP does not require DLT registration, so you can start immediately.
Connects In Seconds
Calls are placed instantly when your API triggers the voice OTP endpoint.
Zero Charge If Not Picked Up
A call that is not picked up costs you nothing — you pay only for connected calls.
Credits Never Expire
Buy a pack now and use your call credits whenever you need them.
24/7 Support
Expert help with API integration, setup, and call delivery issues.
Frequently Asked Questions
Quick answers about Voice OTP, billing and API integration.
Voice OTP is an automated verification call that reads the One-Time Password out loud to your customer. It is used as a fallback when SMS delivery fails, and works on any handset — including basic feature phones with no data connection.
No. Voice OTP does not require DLT registration. You can start calling customers immediately after signing up and integrating our API.
Charging is purely delivery based. A call that is not picked up costs you nothing — you pay only for connected calls. Credits never expire, so you can top up when it suits you.
The same API you already use for SMS OTP takes one extra endpoint. Trigger the call after your SMS timeout, and the customer hears the code read out twice in the language they use. You can also configure automatic retries if the call is not answered.
Yes. Voice OTP calls are permitted to DND numbers, because verification is user-initiated. This ensures your verification message reaches every customer who requests it.