If you’re tired of nuisance or scam calls, you’ve likely heard about both the Telephone Preference Service (TPS) and landline call blockers like CPR Call Blocker. Many people assume they do the same thing — but they actually work in very different ways.
In this guide, we’ll explain how each protects you, why combining them gives the best results, and how to stop unwanted calls for good.
What Is the Telephone Preference Service (TPS)?
The TPS is the UK’s official “Do Not Call” list, overseen by Ofcom. It allows individuals and businesses to opt out of receiving unsolicited sales or marketing calls from legitimate UK organisations.
When you register your landline or mobile number with the TPS:
- Law-abiding companies must remove you from their calling lists.
- It’s free and takes about 28 days to take full effect.
- You can register online at TPS Online.
Summary: The TPS legally stops legitimate UK telemarketers from calling your number, but it doesn’t block calls in real time.
What Is a Landline Call Blocker?
A landline call blocker is a physical device that connects between your landline socket and phone. It automatically intercepts and blocks unwanted calls before they ring.
Devices like CPR Call Blocker V100K come pre-programmed with 100,000 scam and nuisance numbers, plus allow you to block additional calls at the touch of a button.
Key functions include:
- Blocking scam, spoofed, or international calls.
- Allowing one-touch blocking of new offenders.
- Working in real time, instantly rejecting calls.
Summary: A landline call blocker is a plug-in device that automatically blocks scam and nuisance calls in real time.
Key Differences Between TPS and a Landline Call Blocker
| Feature | Telephone Preference Service (TPS) | Landline Call Blocker |
|---|---|---|
| Type of Protection | Legal registration | Physical blocking device |
| Stops Legitimate UK Marketing Calls? | ✅ Yes | ✅ Yes (manually) |
| Stops Overseas or Scam Calls? | ❌ No | ✅ Yes |
| Real-Time Blocking? | ❌ No | ✅ Yes |
| Works Without Registration? | ✅ Yes (once registered) | ✅ Yes (out of the box) |
| Cost | Free | One-time device purchase |
Summary: TPS stops legitimate marketing calls through legal enforcement, while a call blocker stops all nuisance and scam calls through technology.
Why the TPS Alone Isn’t Enough
While TPS helps reduce legitimate marketing calls, it cannot stop:
- Overseas scammers.
- Robocalls.
- Fake government or bank impersonations.
Scam callers simply ignore TPS laws. That’s where devices like CPR Call Blocker come in — providing the technological defence TPS can’t.
Summary: Scammers don’t obey TPS rules, so a call blocker adds vital real-time protection.
Why You Should Use Both Together
For complete protection:
- Register with the TPS to reduce legitimate marketing calls.
- Install a CPR Call Blocker to stop illegal, spoofed, and international calls.
Together, these two systems block up to 95% of unwanted calls, protecting households — especially seniors — from scams.
Summary: Combining TPS with a call blocker gives you the strongest defence against nuisance and scam calls.
Conclusion
The TPS and a landline call blocker serve different roles — one sets legal boundaries, the other enforces practical blocking. By registering with the TPS and using a CPR Call Blocker, you’ll enjoy peace of mind knowing both legitimate marketers and scammers are kept off your line.
Explore CPR Call Blocker V100K to protect your loved ones today.
FAQs
Q: Do I still need a call blocker if I’m registered with TPS?
A: Yes — TPS doesn’t stop overseas or scam calls, which call blockers handle instantly.
Q: Is TPS registration free?
A: Yes, completely free for both landlines and mobiles.
Q: How long before TPS takes effect?
A: Usually within 28 days.
Q: Are call blockers legal in the UK?
A: Yes — Ofcom and Age UK recommend them for vulnerable consumers.
