Building a More Secure and Trusted Communication Experience.

Validate your CLIP No Screening numbers before 7 October 2026

Your business caller ID helps customers recognise your calls and get back to you with confidence. Validate your CLIP No Screening numbers to continue displaying your business phone number while supporting a more secure and trusted communications experience.

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Stay recognisable to your customers.

Your phone number is more than just a way to make calls, it's part of your business identity.

When customers recognise who's calling, they're more likely to answer the phone, trust the conversation and easily get back in touch if they miss your call.

Validating your CLIP No Screening numbers helps ensure your business caller ID continues to be displayed after 7 October 2026.

Make it easy fo your customers to return missed calls and continue important conversations.

Validate your numbers in three simple steps.

We've made the validation process straightforward.

1. Find your numbers

Identify the phone numbers you use with CLIP No Screening that are not owned by or ported to NFON.

2. Gather your documents

Prepare one of the following:

  • An invoice from your telecommunications provider showing ownership of the phone number.

  • An authorisation document confirming your right to use the number.

3. Submit your validation request

Send your validation request through your NFON Partner or email us directly.

Please include:

  • the phone number(s) you want to validate;

  • your supporting documentation.

What happens after you submit your request.

Our team will review your request and validate your numbers. Validation typically takes up to five working days.

If your numbers haven't been validated by 7 October 2026, your calls will still go through, but your caller ID will temporarily be displayed as Anonymous instead of your business phone number.

As soon as your numbers have been successfully validated, your business caller ID will automatically be displayed again.

Why it matters.

By validating your numbers, you'll continue to enjoy the benefits of displaying your business caller ID:

  • Be recognised instantly – Customers know who's calling before they answer.

  • Make it easy to call you back – Your business number remains visible for missed calls.

  • Build trust – Displaying your business number creates a more professional and trusted calling experience.

Frequently asked questions

Below is a list of frequently asked questions:

Why am I being asked to validate my numbers?

As part of our ongoing investment in secure and compliant cloud communications, we're validating CLIP No Screening numbers to ensure that only authorised phone numbers are displayed as caller IDs. This helps protect businesses and their customers from caller ID misuse.

Will my business communications be interrupted?

No, your outbound calls will continue to be completed as usual.

If your numbers haven't been validated, your caller ID will be displayed as Anonymous until validation has been completed.

Can I validate multiple phone numbers at the same time?

Yes. You can include multiple phone numbers in a single validation request together with the required supporting documentation.

What documents do I need to submit?

Please provide one of the following:

  • an invoice from your telecommunications provider showing ownership of the phone number; or

  • an authorisation document confirming your right to use the number.

Do I need to take action?

You only need to validate your numbers if you:

  • use an NFON SIP Trunk service in Germany;

  • use CLIP No Screening; and

  • display phone numbers that are not owned by or ported to NFON.

If you only use numbers owned by or ported to NFON, no action is required.

How long does validation take?

Validation typically takes up to five working days. We recommend submitting your request as early as possible to ensure everything is completed well before 7 October 2026.

Can my NFON Partner take care of this for me?

Yes. Your NFON Partner can submit the validation request on your behalf, or you can send it directly to vertrieb@nfon.com.

What happens if I validate my numbers after 7 October?

Your outbound calls will continue to work.

However, your caller ID will be displayed as Anonymous until your validation request has been completed. Once your numbers have been approved, your business phone number will automatically be displayed again.

Reach out to us!

We are happy to answer any questions you may have.

You can also ask Nia!

Request information