Improve Your Phone Number’s Reputation with Voice Integrity.

Modified on: Tue, 22 Jul, 2025 at 1:31 AM

Overview

Voice Integrity is a powerful new feature that helps restore trust in your phone calls by registering your US numbers with top caller ID analytics firms (First Orion, Hiya, TNS). This eliminates “Spam Likely” flags, improves pickup rates, and boosts brand credibility.


TABLE OF CONTENTS


Why Turn On Voice Integrity?


If your business numbers are flagged or blocked, Voice Integrity helps you:

  • Fix bad reputations and clear “Spam Likely” labels from legitimate calls.

  • Increase pickup rates—recipients are more likely to answer when your caller ID shows a verified, trusted name.

  • Ensure your calls are seen as authentic, not suspicious.

  • Boost call answer rates with a verified and trusted caller ID

  • Help prevent your numbers from being blocked or ignored

  • Maintain a positive caller reputation over time

  • Establish trust and credibility with recipients

  • Support consistent branding through accurate caller ID display


Requirements Before You Start


To use Voice Integrity, you’ll need the following:

  • SHAKEN/STIR Certification (Required)
    This protocol verifies that your call is authentic and hasn't been spoofed.

  • CNAM (Recommended)
    A branded caller name (like your business name) further improves trust.

  • US Phone Numbers Only
    This feature only applies to U.S.-based traffic. International numbers are currently not supported.


How to Enable Voice Integrity


You can easily set up Voice Integrity in just a few steps:

  1. Go to Labs and Enable Voice Integrity

  2. Navigate to:
    Settings > Phone Numbers > Trust Center > Voice Integrity

  3. Fill Out the Form
    Provide the requested business and phone number details.

  4. Submit Your Application
    Applications are typically processed within 2 business days.

  5. Check Application Status
    Track progress under the “Submitted Applications” section in the Trust Center.


What Happens After You Register?


Once you submit your information, each of the analytics providers—Hiya, TNS, and First Orion—will review your registration separately.




Note-To get started with Voice Integrity, your business must first be registered for SHAKEN/STIR, which requires a valid Employer Identification Number (EIN). However, if you're a sole proprietor or do not yet have an EIN, you can still improve your phone number reputation using the Free Caller Registry


What is the Free Caller Registry?


The Free Caller Registry is a centralized platform that allows businesses to submit their phone numbers for review by the three major U.S. providers. These providers determine how your calls are labeled on recipients’ devices. Registering your numbers helps establish your legitimacy and reduce the chances of your calls being marked as “Spam Likely.” The Free Caller Registry is specifically designed for use within the United States and is intended to support U.S. domestic phone numbers.


What You’ll Need Before Registering


Preparing your information in advance will help you complete the registration process quickly and accurately:


  • Phone numbers

  • Caller ID display names

  • Contact information (name, phone, and email)

  • Company details (name, address, and website)

  • Monthly call volume estimates

  • Service provider(s) or carrier name


How to Register on the Free Caller Registry


Follow these simple steps to register your numbers:




  • Fill out the form using the details listed in the "What You’ll Need Before Registering” section above

  • Complete the email verification step by entering the code sent to your inbox

  • Submit the form to finalize your registration



Form Field FAQs


Use this reference to correctly complete each part of the Free Caller Registry form. This improves accuracy and increases the likelihood of a successful registration.


Phone Numbers to Register:


List the tracking or outbound numbers you want to register. Each number should be in the format +15554443333 (must include country code, no spaces). Also include the Display Name—this is what you want customers to see on their caller ID, such as "ABC Roofing".

Tip: If you’re submitting more than 20 numbers, use the Upload Additional Numbers option.



Business Category:

Under “I believe my calls are…”, select the option that best matches your industry or call intent. This helps analytics providers understand your use case.


Contact & Company Information:


  • Contact Name: Full name of the person managing phone systems

  • Company Phone: Your main business line

  • Email Address: Will be used to send a verification code


Calling Company Details:


  • Calling Company Name: Your legal business name

  • Company Address: Full business address (street, city, state, ZIP code)

  • Company Website (URL): Your main, active business website


Technical Details:


  • Service Provider: Name of your VoIP or telecom provider (e.g., Twilio, Bandwidth, RingCentral)

  • Calls per Month: An estimate of your typical monthly outbound call volume


Optional – Feedback on Incorrect Labeling:


If customers have told you that your number is showing as "Spam Likely" or being blocked, include a brief note in the final optional field. This context can help the analytics teams review your submission more effectively
.


If Registration Doesn’t Work


If your calls are still being flagged as “Spam Likely” after registration, don’t worry—there are additional steps you can take.


Frequently Asked Questions


Q: How long does registration take?
Usually 3–7 business days. Each provider works independently, so timing may vary.

Q: What if I don’t get a confirmation?
Check your spam/junk folders. If still missing after a week, contact the analytics provider directly.

Q: Will registration guarantee that my number won’t be marked as spam?
Not guaranteed, but it significantly reduces the risk. Consistent and responsible call behavior is also important.

Q: Can I register VoIP or toll-free numbers?
Yes, just ensure the service provider is accurately listed.

Q: Do I need to update my registration?
Yes, if your call patterns or numbers change significantly.

Q: Does this affect SMS spam labels too?
No. This registry only affects voice calls. For SMS, ensure you're registered under A2P 10DLC compliance.

Q: Is the Free Caller Registry available outside the U.S.?
The registry is for U.S.-based numbers. If you're calling into the U.S. from abroad, you can still register those numbers. For other regions, check with your local telecom authority or provider for equivalent solutions.



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