Introduction

Verified Numbers are phone numbers that have been confirmed to belong to the user and are authorized to display as the CLI on calls made through the Telnyx platform.

This verification process helps to ensure that the number being used as the CLI is accurate and belongs to the user, which can improve the caller's trustworthiness and professionalism.

Verifying a phone number on Telnyx is a simple process that allows non-Telnyx numbers to display as the calling line identification (CLI) on calls made through the Telnyx platform.

This document provides a step-by-step guide to verifying a phone number on Telnyx.

Step-by-Step Guide:

Using a phone number obtained from a different provider, not Telnyx, as the Caller ID for your outgoing calls is simple.

A verified number is a phone number that has been confirmed to belong to the user and is authorized to display as the calling line identification (CLI) on calls made through the Telnyx platform.

This verification process helps to ensure that the number being used as the CLI is accurate and belongs to the user, which can improve the caller's trustworthiness and professionalism.

Verifying your phone number is straightforward with Telnyx, as Telnyx offers two methods for doing so.

See the following instructions and information for a step-by-step guide.

To access your Verified Numbers, go to the Mission Control Portal, select "Numbers" from the navigation menu, and then choose "My Numbers."

This will take you to the "My Numbers" screen where you can view all Telnyx numbers associated with your account.

In the top section, select "Verified Numbers”.

This will take you to the "Verified Numbers" section where you can verify and manage your non-Telnyx phone numbers.

Verifying a non-Telnyx number is straightforward.

Simply enter the non-Telnyx number you want to verify and select your preferred method, either SMS for SMS-capable devices or a voice call.

If you opt for SMS, a validation code will be sent to your non-Telnyx number via SMS.

If you choose the Call option, a voice call will be placed to your non-Telnyx number and an IVR will play the validation code twice.
​

After entering the Verification Code, simply press the "Verify Number" button, and your number will appear on the list of Verified Numbers.

Once completed, your phone number will be verified and authorized to display as the calling line identification on calls made through the Telnyx platform.

A call attempt using a non-Telnyx number that has not been verified will be rejected with a "403 Unverified Caller Origination Number D51" SIP error.

You can find more information on our SIP Responses here and an FAQ.

Please take note once numbers are verified and you make outbound calls from them, our caller ID policy will apply.

Specifically:

Which headers from the SIP INVITE can carry the Caller ID Number?

Below listed is the following SIP headers that are accepted for Caller ID, ordered by priority (1 highest and 4 lowest priority)

You need to make sure that you send the now verified number in one of these headers and take into account the order priority.

Pay only for every successful Number verification, when an end-user's token matches the OTP code generated by Telnyx.
​
All Verified Number requests incur a separate charge based on the user destination and channel used to send the verification request.