Troubleshooting UK mobile numbers for outbound calling

UK numbers are designated as mobile by having a 07 prefix. These numbers are often used by customers as they prefer to reach out with a number in the mobile class. Mobile numbers cannot call UK freephone numbers with an 08 prefix. This limitation is related to carrier policies.

Zoom Phone users in the United Kingdom (UK) should be aware that mobile numbers cannot make calls to premium destination numbers. This article explains this limitation and provides a workaround solution.

Requirements for using UK mobile numbers

Limitations for using UK mobile numbers

Using UK mobile numbers has the following limitations:

Table of Contents

How to troubleshoot outbound calling issues with UK mobile numbers

Use a workaround solution

If you need to call premium destination numbers from your Zoom Phone service, follow these steps:

  1. Use a Zoom Phone UK landline number instead of a mobile number when calling premium destinations.
  2. Make the call using the landline number.
    Note: We are aware of this limitation and are considering implementing an enhancement in the future to support premium number calling from UK mobile numbers.

Request a feature enhancement

If this limitation significantly impacts your business needs, submit a feature request through your Zoom account. Provide details about your specific use case for premium number calling from UK mobile numbers.

Troubleshoot additional issues

  1. If you experience any other issues with outbound calling using UK mobile numbers:
  2. Verify you are not attempting to call premium destination numbers with a mobile number.
  3. Test calling the same destination using a UK landline number through Zoom Phone.
  4. If issues persist with non-premium numbers, contact Zoom support for assistance.