There is a huge requirement in the UK and Europe to provide customers with a system capable of managing their incoming calls and to rid householders and small businesses of nuisance, scam, recorded announcement, silent and telemarketing calls. The TPS and CTPS have over 23 million registrations between them, yet are only able to provide a partial service of preventing nuisance calls.

The Problem

There is a huge requirement in the UK and Europe to provide customers with a system capable of managing their incoming calls and to rid householders and small businesses of nuisance, scam, recorded announcement, silent and telemarketing calls.

The TPS and CTPS have over 23 million registrations between them, yet are only able to provide a partial service of preventing nuisance calls

However this still fails to uncover the identity of overseas callers. Although traditionally a landline problem, nuisance calls to mobiles are on the increase, and there is a real and growing requirement for a privacy service to be available on a mobile handset.

Where a UK company or individual is identified as the perpetrator of the nuisance call, then action can be taken. In the last 11 years (since Ofcom announced the TPS service to attempt to reduce nuisance calls) a small number of UK companies have been fined up to £50,000 for this type of abuse, and further to a recent change in Ofcom’s powers, fines of up to £2 million can now be levied.

The Solution

CallGuardian is a service which is available to UK landline subscribers who also have a broadband connection. Whilst developing this service we have been providing UK landline and mobile phone subscribers with free registration to our ‘Silent CallGard’ service, which advises UK consumers and businesses on how to reduce or get rid of silent and nuisance calls. To date we have had over 2.5 million UK registrations to this service.

We take over 12,000 registrations every month to this service, and around 4,000 of these are from individuals who would be prepared to go ‘one stage further’ to get rid of the problem

There are a number of plug in units available which a consumer can purchase in order to get rid of nuisance calls, the ‘CallBlocker’ at £60 being the biggest selling unit on the market, and consumers can pay up to £120 for such units, but as telecommunications equipment changes these only provide a partial service, and cannot provide service to mobile telephones

Further information is available please click

The CallGuardian Service

CallGuardian will screen and intercept all calls being made to the registered telephone number.  Where CallGuardian recognises the number is from a welcome caller (such as a friend or family), the call is put straight through to your telephone handset.

Where it does not recognise the caller, a brief welcome message is played, and the caller would be presented with options to continue;

E.G.  “Hi, you have reached our CallGuardian Privacy service, not our answering machine. We do not accept unsolicited calls, marketing calls or fundraising requests. If your call is of a personal or invited nature, please state your name and the nature of your call after the bleep and CallGuardian will try to connect you”

This process stops all automated and robotic calls made by computer dialling equipment, and clearly warns any uninvited callers not to continue unless their call is expected or important. Other callers state their name and nature of the call, then your telephone rings and plays you the message.

E.G. “Hi, this is Peter from the Garage, I was just calling to let you know your car is ready for collection”
You will then be given the option to accept or reject the caller by pressing a button on your handset.

Adding numbers to your block or allow lists

After you have received a call, the number will automatically be added to your ‘allowed’ list, meaning the next time that caller rings you they will come straight through.  If ever you want to add a caller to you block list, simply press the appropriate number on your keypad, and they won’t be able to get through again! 

Silent Callgard

Silent CallGard is a free service provided by CallGaurdian which helps reduce the number of silent and abandoned calls you may receive. It supported by the majority of the UK landline and mobile providers.  You can register for free to Silent CallGard service buy going to www.silentcallguard.co.uk or by calling 0800 954 9046


The majority of abandoned and silent calls are caused by call centres using automated calling systems (ACS), such as predictive or power diallers, which generate more calls than their agents can handle.


In some instances an ACS user may disconnect a call without playing an information message. This may be the result of an agent making an error with the call or be the consequence of a technological error. This is referred to as a silent call. These calls are highly likely to cause consumers annoyance, inconvenience or anxiety and can be very frightening, particularly for vulnerable people who live alone and may receive repeat silent calls in a short space of time.

Whilst registration with the Telephone Preference Service (TPS) will not stop the receipt of abandoned and silent calls, it may help reduce the numbers received as you will not appear on the lists used by the companies making the marketing calls

An abandoned call is one that is terminated when you pick up the receiver. Instead of there being a person on the other end of the line you may hear an information message from the organisation that was trying to call you.

Ofcom This complaint form can be used to submit complaints about abandoned and silent calls directly to Ofcom.

An abandoned call is one that is terminated when you pick up the receiver. Instead of there being a person on the other end of the line you may hear an information message from the organisation that was trying to call you.

A silent call happens when your phone rings but there's only silence when you answer it and you have no means of knowing whether anyone is at the end of the line.

For many people, silent calls can be unnerving or indeed frightening. Almost always there is nothing sinister going on. They are usually caused by companies using predictive diallers or other automated calling systems to make large volumes of calls.

The majority of abandoned and silent calls are caused by call centres using automated calling systems (ACS), such as predictive or power diallers, which generate more calls than their agents can handle.

In some instances an ACS user may disconnect a call without playing an information message. This may be the result of an agent making an error with the call or be the consequence of a technological error. This is referred to as a silent call. These calls are highly likely to cause consumers annoyance, inconvenience or anxiety and can be very frightening, particularly for vulnerable people who live alone and may receive repeat silent calls in a short space of time.

Whilst registration with the Telephone Preference Service (TPS) will not stop the receipt of abandoned and silent calls, it may help reduce the numbers received as you will not appear on the lists used by the companies making the marketing calls.

The TPS can be contacted at: www.tpsonline.org.uk, or by telephone on: 0845 0700707

The Government’s Nuisance Calls Task Force formally sets out recommendations to help tackle the everyday menace of unwanted calls and texts including holding senior executives to account for the behaviour of their company.

The task force, chaired by Which Magazine executive director, Richard Lloyd, is part of the Department for Culture, Media and Sport’s (DCMS) Action Plan on nuisance calls. It was asked by the Government to review the way businesses obtain and use consumers' consent to be contacted by phone and text for direct marketing.

The task force will make 15 recommendations, including making senior executives more responsible for the actions of their company. The recommendations will be presented to Minister for Culture and the Digital Economy Ed Vaizey

The recommendations include calling on businesses to improve their direct marketing practices, with the rules on consumer consent agreed as a board level matter, with senior executives held to account for the behaviour of their company.