How to Stop Nuisance Calls on Your Landline (UK)

What counts as a nuisance call in the UK

Under UK law, a nuisance call is broadly defined as any call that causes annoyance, inconvenience, or anxiety. Ofcom, the communications regulator, identifies several categories: unsolicited marketing calls, automated recorded-message calls (often called “robocalls”), silent calls, and calls from fraudsters attempting to obtain personal or financial information.

Not every unwanted call is illegal. Cold calling for marketing purposes is regulated under the Privacy and Electronic Communications Regulations (PECR), enforced by the Information Commissioner’s Office (ICO). Calls to numbers registered with the Telephone Preference Service that continue without consent are a direct breach of PECR, and the ICO can issue substantial fines to offending organisations.

Understanding what type of call you are receiving helps you choose the right response, whether that is blocking the number, reporting it, or both.

Step one: register with the Telephone Preference Service

The Telephone Preference Service (TPS) is the official UK opt-out register for unsolicited sales and marketing calls. Registration is completely free and applies to both landlines and mobile numbers.

Once registered, legitimate marketing companies are legally required to check the TPS list before calling. Any company that calls a registered number without prior consent is breaching PECR and can be reported to the ICO.

How to register:

1. Visit tpsonline.org.uk on any device.
2. Enter your Vodafone landline number and confirm your email address.
3. Registration takes effect within 28 days.

Registration does not stop all nuisance calls. Scammers ignore the TPS entirely, and overseas callers are outside the ICO’s direct enforcement jurisdiction. For those, you need the additional steps below.

Step two: use Vodafone’s built-in call management features

Vodafone provides several call management tools for landline customers that you can activate without purchasing any additional equipment.

Anonymous Call Rejection (ACR) This feature intercepts calls from numbers that have been withheld. The caller hears a message explaining that the person they are calling does not accept calls from withheld numbers. To activate ACR, dial 1477 from your Vodafone landline. To deactivate it, dial 1477 again.

Call Barring Call Barring allows you to block specific numbers or categories of calls. You can manage this through your Vodafone online account:

1. Log in at vodafone.co.uk.
2. Navigate to “My Services” and select “Call Barring” or “Call Management”.
3. Add the numbers you want to block.

You can also contact Vodafone customer services on 191 (free from a Vodafone line) to request assistance with call blocking settings.

Important note: these features block calls at the network level before your phone rings, which is more effective than relying solely on your handset.

Step three: install a hardware call blocker

For persistent or high-volume nuisance calls, a dedicated hardware call blocker provides an additional layer of protection that works independently of your network provider.

Popular devices available from UK retailers include:

• BT Call Blocker (BT8600 series): blocks up to 1,500 numbers and has a built-in database of known nuisance numbers that updates automatically.
• Truecall: screens all incoming calls and challenges unrecognised numbers with a recorded message before putting them through.
• CPR Call Blocker V5000: stores up to 5,000 blocked numbers and includes a one-touch block button.

These devices plug into a standard UK phone socket between the wall and your handset. They are compatible with Vodafone landlines and do not require any changes to your account settings.

Prices range from approximately £25 to £60 from retailers such as Amazon UK, Currys, and Argos. Some libraries and local councils offer loan schemes for older residents, so it is worth checking with your local authority.

Step four: use your handset’s built-in features

Many modern cordless phones sold in the UK include call-blocking functionality as standard. If your handset supports it, you can typically block a number immediately after receiving a call by navigating to your call log and selecting “Block number” or similar.

Check the manual for your specific model. Brands such as BT, Panasonic, and Gigaset include this feature across most of their current cordless ranges.

This approach is useful for blocking a specific number quickly, but it does not address withheld numbers and has a limited storage capacity on most devices.

How to report nuisance calls in the UK

Reporting nuisance calls helps regulators build cases against persistent offenders. There are two main channels depending on the type of call.

Marketing or automated calls (robocalls): Report to the Information Commissioner’s Office via their online form. The ICO can investigate and fine companies under PECR. You do not need to have suffered financial loss to make a report.

Scam or fraudulent calls: Report to Action Fraud, the national reporting centre for fraud and cybercrime, online or by calling 0300 123 2040. If a call is threatening or you believe a crime is taking place, contact the police on 101 (or 999 in an emergency).

Ofcom: If you believe a communications provider is itself responsible for facilitating nuisance calls, you can raise a complaint with Ofcom. Ofcom does not handle individual complaints but uses reports to inform enforcement priorities.

Keep a log of nuisance calls including date, time, the number displayed (if any), and a brief description of the call. This record strengthens any report you make.

What you can do today: a quick checklist

If you want to act immediately, work through this checklist in order:

1. Register with TPS at tpsonline.org.uk (takes two minutes, free).
2. Activate Anonymous Call Rejection on your Vodafone landline by dialling 1477.
3. Log in to your Vodafone account and review your Call Barring settings, adding any known nuisance numbers.
4. Consider a hardware blocker if calls are frequent, particularly if you or someone in your household is vulnerable.
5. Report ongoing nuisance calls to the ICO or Action Fraud depending on the nature of the calls.

These steps do not guarantee you will never receive another unwanted call, but they significantly reduce the volume and give you a documented record if you need to escalate.

For broader guidance on staying safe from phone-based scams, see our guide on mobile scams affecting UK consumers and our article on identifying suspicious numbers on Vodafone.