SMSFLARE
Voice OTP

Deliver one-time passwords through automated voice calls

Extend verification beyond SMS. SMSFLARE can transform an OTP request into a voice call, read the code to the recipient and return delivery information to your system.

Reliable verification

Use voice where SMS alone is not enough

SMS fallback

Trigger a voice call when the SMS route times out or returns a configured failure.

Localized prompts

Deliver verification instructions and codes in the language required by your audience.

API-driven workflow

Start Voice OTP from the same application workflow used for authentication.

Delivery reporting

Track call attempts and outcomes for operational review and reconciliation.

Simple flow

From OTP request to verified user

1

Your application submits the phone number and one-time code.

2

SMSFLARE applies the configured SMS and voice delivery policy.

3

The platform places a call and reads the code using the selected prompt.

4

Delivery information is returned for monitoring and follow-up logic.

Add an independent path for critical OTP traffic

Combine SMS routing and automated voice calls in one managed SMSFLARE instance.

Discuss the integration