Voice Call OTP

Definition

A one-time verification code delivered to a user through a voice call.

How it works

An automated call can speak a verification code instead of SMS; retry limits help prevent abuse. Automated calls and verification flows start from events, rules or schedules. The system records their outcomes to determine subsequent actions.

Business example

A user receives an automated call reading out a code to complete sign-in.

What to consider

Define retry limits, appropriate contact hours and no-answer handling. Check recipient-consent rules and protect one-time verification codes.

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