Spam and scam calls on landlines are an ongoing frustration across the UK. From fake HMRC calls to bogus charity requests, fraudsters use landlines to target vulnerable people, particularly the elderly. While registering with the Telephone Preference Service (TPS) reduces legal telemarketing, it cannot stop fraudsters.
This raises an important question: are landline call blocking devices legal in the UK? The short answer is yes—these devices are perfectly legal and often recommended by consumer protection agencies. In this blog, we’ll explain why they’re legal, how they work, and why they are a valuable tool for households.
Are Call Blocking Devices Legal in the UK?
Yes, landline call blockers are completely legal in the UK.
In fact, regulators such as the Information Commissioner’s Office (ICO) and consumer protection organisations encourage their use as part of personal fraud prevention. Unlike call recording devices (which may raise privacy issues), call blockers simply screen or stop unwanted calls.
The UK telecom regulator Ofcom also supports the use of call blocking tools. Many devices, such as CPR Call Blocker, are sold in high street retailers and recommended by charities like Age UK for elderly users.
Summary: Landline call blocking devices are fully legal in the UK and are even supported by regulators, retailers, and charities as an effective way to reduce scams.
Why Are Call Blocking Devices Legal and Encouraged in the UK?
Several reasons explain their legal status:
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They protect consumers from fraud and nuisance.
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They do not interfere with telecom regulations, since they only filter incoming calls.
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They reduce strain on authorities by lowering the number of scam reports.
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They support vulnerable people like seniors who are more likely to fall victim to scams.
Summary: Call blockers are legal because they protect consumers, don’t interfere with telecom systems, and help reduce scams—especially against elderly people.
What Should You Know Before Using a Call Blocking Device in the UK?
While legal, there are a few practical points to keep in mind:
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Caller ID subscription: Most devices require Caller ID service from your landline provider.
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Limitations: They can’t stop every scam, especially those using new spoofed numbers.
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Setup support: Some elderly users may need help setting up the device.
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Not a replacement for vigilance: Call blockers reduce risk but don’t eliminate scams entirely.
These devices work best when combined with public awareness and reporting scams to Action Fraud.
Summary: Call blockers are legal and effective, but they require Caller ID, have some limitations, and should be used alongside reporting scams.
Conclusion
Landline call blocking devices are legal in the UK and strongly recommended to reduce nuisance and scam calls. For many families, especially those with elderly relatives, they provide much-needed peace of mind.
Explore our range of call blockers to protect your home.
FAQs
Q: Do I need a licence to use a call blocker in the UK?
A: No, they are consumer devices and require no licence.
Q: Can call blockers interfere with emergency calls?
A: No, they only filter incoming nuisance calls.
Q: Are they recommended for elderly users?
A: Yes, Age UK and similar organisations recommend them for senior safety.
Q: Do I still need TPS if I use a call blocker?
A: Yes, TPS reduces legal telemarketing, while a blocker targets fraudsters.
