Nuisance calls are one of the most infuriating things about owning a landline phone.

That moment you pick up the ringing phone to hear the grating sound of an overly enthusiastic telemarketer...

Worse yet?

Those automated messages about some non-existent personal injury. There isn’t even a human on the other end of the line to unleash your frustration on!

Enter the age of the Call Blocker Phone... this post we’ve listed the Top 5 Best Call Blocker Phones of the year that can help stop nuisance calls for good!

Top 5 Best Call Blocker Phones 2021

We tested all of the phones on this list for Call Blocking and took into consideration  customer feedback, customer reviews, number of returns, and included a brief summary of each phone.

1. Siemens Gigaset Premium C575A Cordless Phone

Gigaset C575A

  • Blacklist
  • Anonymous Call Blocking
  • Time Controlled Call Silencing (with VIP Mode)
  • Exceptional Sound Quality
  • Full Duplex HD Loudspeaker

The Gigaset Premium C575A is the Best Call Blocker Phone of the year! A stylish new home phone with exceptional sound quality, a full duplex HD loudspeaker, answering machine, and (of course) call blocking. You can block  up to 15 specific numbers by adding them to the blacklist. The C575A also provides Anonymous Call Blocking to prevent calls from withheld and anonymous numbers. Since the vast majority of nuisance calls come from anonymous numbers, this can help to cut out a huge proportion of such calls. There's a time control setting, too, which allows you to silence the ringer for certain periods of the day except for your VIP contacts. While it may not be able to block as many individual numbers as BT phones, the build and sound quality are far superior, hence its higher position on our list. The C575A has a received glowing customer reviews, and comes with a 2-year warranty.

Gigaset C575 Buy Now

2. Siemens Gigaset Premium E390A Big Button Cordless Phone

Gigaset E390A

  • Blacklist
  • Anonymous Call Blocking
  • Time Controlled Call Silencing (with VIP Mode)
  • SOS Emergency Call
  • Amplified Volume

Next on our list has identical Call Blocking features to our No.1. The Gigaset Premium E390A is the perfect call blocking phone for an elderly relative with big buttons, larger font and amplified volume. In addition to the advanced call blocking features, the E390A also boasts an SOS emergency call feature. The perfect call blocker phone for an elderly relative, it is easy to use, extra loud, and reliable.

Gigaset E390A Buy Now

3. BT 4600 Call Blocker Phone

BT 4600 Call Blocker Phone

  • Dedicated "Call Block" Button
  • Block Calls by Type
  • Block Up to 1000 Numbers
  • 200 Name & Number Phonebook
  • Answering Machine with 60 Minute Recording Time

The BT 4600 includes BT's award-winning call blocking, powered by trueCall, which is one of the most advanced on the market. As well as automatically blocking anonymous calls, you can also add individual numbers to a blacklist with one handy button. However, while this is a great phone for call blocking, it unfortunately has average sound quality, range, and customer reviews. For these reasons, it missed out on the top spot- but is still worth considering.

BT 4600 Buy Now

4. Panasonic KX-TGH260 Link2Mobile

  • Panasonic Nuisance Call Block
  • Block Specific Numbers or a Range of Numbers
  • Reject Withheld or Anonymous Callers
  • Link2Mobile technology to connect your smartphone
  • Which? Best Buy Cordless Phone 2017

The Panasonic KX-TGH260 Link2Mobile features Panasonic Nuisance Call Block. This allows you to block single numbers, a range of numbers, and reject calls from withheld or anonymous callers. A great all-round home phone that offers comprehensive protection against unwanted calls. Further benefits of the Panasonic KX-TGH260 include the Link2Mobile function so that you can pair your mobile to your landline.

Panasonic KX-TGH260 Buy Now

5. Siemens Gigaset SL450A GO - Black Edition

  • Blacklist
  • Anonymous Call Blocking
  • Time Controlled Call Silencing (with VIP Mode)
  • Exceptional Sound Quality
  • VoIP Compatible

The most stylish call blocking phone on our list is the Gigaset SL450A GO - Black Edition. A luxury cordless phone for landline and VoIP, it boasts a genuine metal frame and charging cradle. It features all the same advanced call blocking features as the No.1 on our list: blacklist, anonymous call silencing, and Do Not Disturb with VIP mode. It also share's the C575A's excellent sound quality, too!


Explained: Different Types of Nuisance Call Blocking

Different manufacturers can refer to the same Call Blocking features in different ways. Generally speaking, there are a few categories call blocking features fall into. They are:

What is Call Barring?

Blacklists (sometimes referred to as Call Barring) is often one of the most effective Call Blocking features. After a number is added to a blacklist any incoming calls from that number is blocked. Your telephone won’t ring and the call will not be registered. This can be great for persistent nuisance callers but the process of blacklisting can be quite manual and won’t work against anonymous or withheld numbers.

What is Range Blocking?

Range Blocking is similar to the Blacklist or Call Barring feature. However, instead of blocking a specific number, it allows you to block a specific range of numbers, such as an area code. This can be a useful option for mitigating certain types of nuisance calls.

What is Anonymous Blocking?

Sometimes referred to as "Block Calls by Type",  this is a block which can be enabled to block any calls from withheld or anonymous numbers. Very useful to have if you receive harassing phone calls or telemarketers using withheld numbers or other anonymous caller techniques.

What is Do Not Disturb or Night Mode?

Many Call Blocker Phones include "Do Not Disturb" or "Night Mode". Gigaset have started referring to this feature in their manuals as "Time Controlled Call Silencing". Whilst this is not call blocking per se, it can be a useful way of getting rid of nuisance calls or having your phone disabled once you've had enough for the day. Some devices have the ability to schedule Night Mode to automatically block calls during a specified period except for contact in your phonebook who have been assigned VIP status.

What is Call Guardian?

This jewel in the crown for BT’s Premium Call Blocker Phones. Essentially Call Guardian works as an automated Call Screening service. The BT handset will answer incoming calls from unknown or withheld numbers and ask the caller to announce their name. Only then will the phone ring and when you answer the recording will be played and you can decide whether to accept the call, block it, or send it to the answering machine.

Final thoughts

With the features listed above, most have the toolkit they need to block out the majority of nuisance calls. This can be everything from unwanted solicitors, harassing debtors, and annoying phone calls of all varieties. Anonymous Blocking and Range Blocking features can often be the double-whammy which throws telemarketers out of your phone receive for good, and with the help of Blacklists and Night Mode you can make sure you never have to take an unwanted call at off-hours or from an undesirable person.

Which logo

It used to be that all you had to do to put an end to irritating sales calls was register your number with the Telephone Preference Service (TPS) to stop nuisance calls. This is still worth doing (you can do this here) but as TPS only deals with live sales and marketing calls, the best way to prevent all nuisance calls is with a Call Blocker Phone. You can save yourself some time by opting for one of the tried and tested models in our Top 5 or shop the full range.

Shop all Call Blocker Phones

And if you're interested in taking your action further the independent consumer group Which? are currently running a campaign "Calling Time on Nuisance Calls & Texts".