### Verify the validity of an OTP code via Voice Verify that the OTP code entered by the end user matches the OTP code that was sent. The Verify OTP code endpoint completes the OTP via Voice flow for: - [Sign-Up](/api/otp/phone/sign-up) - [Sign-In](/api/otp/phone/sign-in) - [Sign-In with Auto Sign-up](/api/otp/phone/sign-in-auto-sign-up) - [Update Phone](/api/otp/phone/update-phone) The response object includes the session JWT `sessionJwt` and refresh JWT `refreshJwt` when it completes successfully, and the end user will be signed in. For an update phone number flow, the new phone number will replace the original phone number. ### See Also - See [The User Object](/api/overview#the-user-object) for further details on how to identify users and their contact information such as email address and phone number. ### Endpoint Authentication Use authorization bearer header with the following format: `Authorization: Bearer <Project ID>`