Nuisance calls - phone services that can help

10 December 2013

Phone companies offer a number of services that can help protect against nuisance calls.

Here we explain more about these services, how they work and how much they cost from seven landline providers.

Types of service

Caller Display

Caller display shows you the number of the person calling (if the number has not been withheld and you have a phone with a display) so that you can choose whether to answer or not.

Caller display information is also important so consumers can report nuisance calls to Ofcom and other regulators and for the effective use of handsets and services that rely on the telephone number to help block and filter calls.

Incoming Call Blocking

Incoming Call Blocking services can help tackle nuisance or unwanted calls by preventing selected numbers from getting through.

Anonymous Call Rejection

Scammers or some callers making unsolicited or nuisance marketing calls may try to hide their identity by withholding their number.

Anonymous Call Rejection allows you to stop calls from people who withhold their number from getting through.

Last Caller Identification or 1471

Where a nuisance call has been received, dialling 1471 immediately afterwards can help identify the number of the last caller (unless the caller has withheld their number).

Once the number has been obtained using 1471, you can call the number back and request not to be contacted in the future or report the number to the relevant regulator.

Voicemail or 1571 (standard and enhanced services)

A voicemail service allows you to screen certain calls (perhaps those from an unrecognised number) and make a choice whether to return the call once you’ve listened to the message.

Some providers also offer an enhanced voicemail service. This includes features such as remote access, allowing you to listen to messages from a device other than your landline.

How much do they cost?

In some cases, these services are free. In other instances, monthly charges can apply and may vary depending on which particular package you’re signed up to. Charges from the seven landline providers are set out below.


The prices listed are per month. The CPs shown above are those with a relevant market share above 1% or with a universal service obligation to ensure that basic fixed line telecoms services are available at an affordable price to citizens across the UK (BT and KC). There are other communications providers offering the same or similar services. When choosing a provider consumers should also consider them and check their provision of the relevant services and the charges. Consumers who are a customer of another provider should check their services and charges.
For ease of comparison Ofcom has used a generic name and description for each of the services offered by the communications providers listed. Whilst the services are broadly comparable there may be slight differences in the way the services operate and the features they offer. Consumers should therefore check the precise nature of the service with the provider directly.

Information correct as of 1st December 2014

1.-Blocks up to 10 numbers, unless specified otherwise
2.-Legacy products such as BT’s Call Minder and Caller Display services, offered as part of BT’s call features package, have not been included as they are no longer being actively marketed by BT.
3.-Caller display is free on request with a 12 month line rental contract or charged at £1.75.  Customers on the BT Basic tariff will receive BT Privacy with caller display without charge and with no commitment to a 12 month line rental contract.
4.-Anonymous Call Reject is only available as part of EE’s Calling features pack. This is charged at £3 per month and also includes Call Divert & Call Waiting.
5.- KC’s charge of £1.02 for caller display applies to consumers on the Light User Scheme and KC Local tariff. For all other tariffs, including their Social Access Package, the service is free.
6.-The charge of £1.02 for 1571 enhanced voicemail applies to the Light User Scheme, KC Local and Social Access Package.
7.-No limit on the number of incoming calls that can be blocked
8.-Anonymous caller reject is free for customers on the Social Access Package, KC Anytime, KC Home Xtra and KC Home Unlimited. The £1 charge applies to all other KC talk and bundle tariffs.
9.-This service is not available to Virgin Media’s cable customers.

Additional Services

Communications providers may also offer other services to help you tackle nuisance calls. Some providers offer a dedicated nuisance calls team to provide advice and assistance. Other providers may supply these services through their customer services teams.

Telephones or call blocker units that can be programmed to screen unwanted calls are also available. These can be purchased from independent companies as well as from some phone companies directly. You should check to see if you will need to sign up to a caller display service to use the handset effectively.

If you have particular concerns about nuisance calls you should speak to your provider (or prospective provider) to find out about any other available services.

Read Ofcom’s Nuisance Calls Guide