Best Call Blocker Reviews 2022

Sometimes words can’t convey the feeling of rushing to answer a phone call, only to hear a telemarketer or automated voice on the other line. These are the moments when we appreciate the importance of call blockers, especially when it’s totally legal for those calls to be made to landlines. To help you get rid of those pesky calls, we searched thoroughly and found five of the best call blocker brands on the market. We’ve focused on only one type of call blocker from each brand, but there are a variety of other options available to browse.
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Our Top Choice
Ooma Telo Home Call Blocker
Committed to transforming the landscape of home phone service, Ooma corrects all that is wrong with home phone services today such as high cost, small features, and rigidity.
Allows you to select an area code other than your own. Rolls over the calls to your cell phones if the power or internet is out. Available in bundles.
The unit often takes time to link with the Ooma service to download the updated firmware and its customer support is subpar.
Automatic blocking
1500 numbers
5.7 x 5.7 x 2.2 inches; 0.6 lbs.
1 inch; 3 line display
All major US line providers
Best Value
Tel-Sentry Inc. Sentry 2 Call Blocker
The Sentry brand has brought peace and tranquility to thousands of homes. It's so effective that it guarantees your satisfaction with an excellent call blocking service.
Adjustable screen brightness. Easy to toggle the ringer on or off. Automatic.
This device only captures the phone number and not the name, lacks a backlight button, and sometimes locks up on every new call.
Automatic blocking
1500 numbers
5.7 x 5.7 x 2.2 inches; 0.6 lbs.
1 inch; 3 line display
All major US line providers
CPR Call Blocker V5000
CPR Call Blocker helps homeowners and businesses in over twelve countries around the world solve their problems of pesky, unwanted callers with its innovative call blockers.
Easy to install. Has a convenient “block now” button that permanently blocks unwanted numbers. Top-notch customer service.
This device allows blocked calls to still appear on the caller ID list of phones.
One button blocker
6500 numbers
3.7 x 4.3 x 2.2 inches; 0.24 lbs.
3-inch display
All major US line providers
Obihai OBi200 1-Port Phone Adapter
With a solid background in technology, Obihai manufactures top-quality devices that meet global communication standards.
Voice commands. Allows 3-way calls and fax. Not locked to any service. Easy to set up. Can be accessed remotely.
There are no real issues here, but you have to know how to use it to get maximum benefits from it.
VoIP Phone Adapter
Info Not Provided
2.7 x 2.7 x 1.2 inches; 0.44 lbs.
Does not have display
VoIP, SIP, digital services
MCHEETA Telemarketing Call Blocker
For years, MCHEETA has been dealing with high-quality communications and technology products, offering customers the best of both worlds at competitive prices.
Can block up to 2,000 numbers. Compact design. Automatically blocks calls without CID. Widely compatible.
Would have been great if it could display the caller name.
One button blocker
3.5 x 3.7 x 2 inches; 0.2 lbs.
Backlit display
Compatible with many

What is the Best Call Blocker?

Finding the call blocker that will work best for you requires consideration of memory, functionality, and, of course, budget. As you go through this review, keep those things in mind. This approach will surely make it easier for you to select the best call blocker for your needs.
Our Top Choice
The Ooma Telo Home Call Blocker automatically blocks telemarketers and other unwanted callers, gives you crystal-clear calls across the nation for free, and uses top-level encryption technology to secure your data. If you’re unsure of the featured call blocker, check out the Ooma Telo Free Home Phone Service, which has been discontinued by Ooma. It comes with a 60-day free trial of Ooma Premier—a suite of enhanced calling services.

Ooma Telo Free Home Phone Service – Available in 2 Colors & 4 Styles

Since its inception, Ooma has been dedicated to helping people keep in touch with friends and family anywhere in the world for next to nothing. At the center of its efforts is the Ooma Telo, a highly sophisticated computer that, when connected to its cloud-based smart platform, presents free calling with high-quality, advanced features and connected services that turn an ordinary phone into a smartphone for your home.

The Ooma Telo Free Home Phone Service utilizes PureVoice HD technology to deliver superior voice quality even under extreme conditions, using a collection of advanced technologies only Ooma provides. It’s a sleek, small, network-managed, secure Linux computer packed with processing power to keep your calls clear and reliable. With this device, you get caller ID, call waiting, and voicemail all for free. Once you pay for the unit, you pay only applicable taxes and fees. It requires a high-speed Internet connection, a minimum 180 Kbps upstream network speed, corded or cordless home phone, or optional Ooma HD2 Handset.

Listed below are some of its other features:
  • Integration with Amazon Echo and its voice-enabled smart assistant, Alexa
  • 911 and 911 text alerts
  • Online portal with call log, preferences, and contacts
  • Fax mode
  • Free Ooma-to-Ooma calling worldwide
This device is intended for residential use only. Keep in mind that you can also purchase this device as part of any four of the available bundles!
Best Value
The Sentry 2 Call Blocker is a fully automatic call blocker that effectively blocks all spam calls, including those not on the blacklist. With this device, there’s no need to push the reject button anymore. The Sentry 3, an equally good call blocker from this company, allows you to record your own outgoing message in any language. If you also want a call blocker with a keypad, check this out.

Tel-Sentry Inc. V2.2 Smart Automatic Blocking

Tel-Sentry, Inc. boasts of inventing an easy-to-use blocker that's 99.9% effective at stopping unwanted calls and more reliable than any product in the market; all you have to do is plug it in. Its founder, Sean, created it to put a stop to telemarketers’ calls once and for all after he had searched and failed to find any call-blocking products that effectively solved this problem.

The Sentry 2 works in a couple of independent modes. The first mode pair is the parallel versus series mode and the second mode pair is the basic versus advanced modes. The White List contains the “real callers” while Black List contains the spammers, which it blocks. Some other features of this call blocker are:
  • 3 levels of screen brightness
  • Uses two AAA batteries as a backup power source
  • Battery backup eliminates freeze-up and resetting issues
  • Weighs 9.6 ounces
The CPR V5000 Call Blocker, with its easy-to-use control buttons, blocks all unwanted calls. It installs in seconds and works with your existing home phones. It allows you to block a number using #2. If you want a less-expensive device, CPR’s Call Blocker V202, with a 1200-number capacity, is a small, discreet device that has a 3-inch caller display screen. We suggest you take a look at it.

CPR Call Blocker with 5000 Pre-programmed Scam Numbers

Born out of a need to solve the problem of personal harassment calls which its sister company CPR Global was unable to solve for its customers, CPR Call Blocker has been providing simple, low-cost, effective blocking ever since. This SBD- (Secured by Design) certified brand is constantly looking at new ways it can provide assistance in stopping the ever-growing problem of nuisance calls. This includes product updates, released every six months to enable it to stay ahead of the newest types of nuisance calls.

The CPR V5000 Call Blocker has a call list function that displays the last twenty callers which can be individually added to the block list, if required, at the touch of a button. This call blocker comes pre-programmed with more than 5000 numbers which are deemed as “known unwanted callers.” Following are some of this call blockers other features:
  • Dimensions of 3.7 x 4.3 x 2.2 inches
  • Weighs 3.8 ounces
  • Color: black
  • Manual entry to blocking list
  • Compatible with all major US line providers
The pre-programmed numbers are not accessible to the user and cannot be viewed, changed, or deleted.
If you want a phone adapter you can use with any service provider, fax, manage blacklists, and greatly reduce call rates, go for the Obihai OBi200 VoIP Phone Adapter. If you’d like a phone adapter too, check out the OBi100 VoIP Telephone Adapter which has a 3-way calling, caller ID, and super easy to set up.

Obihai OBi200 1-Port VoIP Phone Adapter with Google Voice

Obihai is a technology company based in Silicon Valley, California. It manufactures superior-quality audio and video DSP algorithm designs, semiconductor and integrated circuit designs, and professional-grade electronic and communication systems. It adopts low-cost manufacturing in order to offer its products at affordable prices and also complies with global communication standards. This makes its products useful over a wide range of applications.

Free is always nice, and that’s what you can get with the Obihai OBi200. The device lets you call other Obi devices for free via the OBiTALK network. This phone adapter supports up to 4 VoIP services including Anveo, VoIPms, Google Voice, PhonePower, etc. You will also get low call costs, whether local or international, from any service provider of your choice.

The following are some other features of this feature-rich phone adapter:
  • Supports caller ID, Call forwarding, Call waiting, 3-way calls, and even faxing
  • Allows call blocking and blacklist management
  • Supports voice command
  • Works with your alarm system and notifies you of activities
  • Not locked to any particular service so you can use it with any service provider of your choice
  • Can ring multiple phones simultaneously
  • It is easy to set up and can be accessed remotely
The MCHEETA 801 Call Blocker is just what you need to get rid of those annoying telemarketing and robocalls. This new version can block up to 2,000 numbers. If you’d like a hands-free phone from this brand, check out the MCHEETA Call Center Telephone with Headset which has a noise cancellation microphone.

MCHEETA 801 New Version Call Blocker – Available in 3 Designs

MCHEETA is a supplier of numerous quality products in different categories such as communications technology, computer accessories, home products, etc. It commits to satisfying customer expectations and offering its products at competitive prices. One of its numerous products it has on offer is the call blocker we are featuring.

The MCHEETA 801 Call Blocker is an excellent product that spares you the stress of leaving the comfort of your activities to receive a call, only to find out it’s one of those automated ones. It even gets more annoying if you have been waiting all day for an important call, where every ring raises your heart rate. This call blocker, as the name implies, blocks all automated calls.

The following are some more features of this amazing product:
  • Can block up to 20,000 numbers with up to 16 digits
  • Manually blocking a call is as easy as pressing the large, red block button
  • It will automatically block all calls with no CID
  • This call blocker uses the American system and is compatible with 99% of telephones
  • It’s so easy to set up, even the senior citizens can do it themselves
  • It comes in a compact design so it won’t take up any significant space
And don’t forget that there are three variations of this call blocker, each with its own unique features. Take a look if you want to see more options!

How Do I Choose the Best Call Blocker?

The weekend will start in a few hours, and you’re swiveling your office chair while mentally mapping out how you will spend your night. Most of it will be invested in annihilating your friend’s freshly built castle in the new MMORPG franchise you just downloaded. Picturing yourself leaning back, legs outstretched, on your gaming chair in front of the 4K TV and reeking virtual havoc gives you goosebumps.

Whether you’re in the middle of an online battle, the final scene in the new Hollywood blockbuster, or a family meal with your loved ones, it’s always irritating when the phone rings at an inconvenient moment. Upon answering the telephone, you realize it’s just an automated voice message. Seething with anger, you hang up. What a sour taste to end a great meal.

Your sleep wouldn’t have been interrupted if you had a call blocker to prevent unsolicited calls from reaching your phone. Call blockers allow you to save phone numbers on a blacklist so they are intercepted without your disturbance.

The best call blockers stop unwanted calls automatically and have a high capacity for numbers you can blacklist. They have bright, easy-to-read screens so you can see incoming calls and then decide to allow or block them. Most call blockers are compatible with several line providers and even Voice Over Internet Protocol.

Aside from the top products we featured from trusted brands, there are other products that would have easily made it to our list. Situations like this make us wish we had more than 5 slots. The HQRP Caller ID Box gives you access to up to 100 most recent incoming calls and 50 most recent outgoing calls. Further, the Call Control Landline and VOIP Call Blocker, is easy to set up and can sync with your device. These products are also worth checking out. You can thank us later as we have helped expand your options.

Read further to learn all you need to select the best call blocker to meet your needs.
The amount of technology and capabilities packed into a call blocker is the primary determinant of its pricing. You’d love to have the coolest call blocker with all the bells and whistles, though you might not need all of them. Even if you can afford it, you should probably think twice about spending your hard-earned money on it.

The most expensive call blockers can reach up to $200, while a less-expensive option that could suit your needs only costs around $49. Watch out for the cheapest call blockers though; they can cause more harm than good. You certainly don’t want to spend your money on a call blocker that will allow unsolicited calls and block calls from your loved ones. Pay enough to get a quality blocker, but don’t overspend.
If you’re tired of pestering, unsolicited calls, a call blocker can help. Here are some features to consider when deciding which one to purchase:
  • Type
  • Capacity
  • Size
  • Display
  • Compatibility
  • Extras
As you read on, you will have a better understanding of how these features affect the performance of a call blocker.
Construction and Design
The three things we recommend you look for while call blocker-shopping are: what type you want, its number capacity, and its size. We give you a little more info on each topic below.


Call blockers can help you reclaim the rest of your day by keeping unwanted calls at bay. There are two ways they do this: either automatically by identifying calls you have previously blacklisted or by you hitting the “call block” button. The automatic types usually rely on memory to store your blacklisted numbers and use your call provider’s Caller ID service to block unwanted calls. If any unwanted calls still get through, you have the option of rejecting and blacklisting the call with the single press of a button.


There are probably also certain people you know who you just don’t want to talk to on the phone, coupled with the long list of unsolicited calls. This list can sometimes run high, but don’t worry. Some call blockers have the capacity to blacklist thousands of numbers. There is even one brand that has a 6500-number capacity. With that, you could block everyone you know if you wanted to.


Call blockers are often small devices, but “small” is quite relative. They come in different sizes, but are rarely as big as the phone you’re using it with and weigh less than a pound.
Performance and Ease of Use

Call blockers often have displays that let you see incoming numbers so you can block or allow them if you want. Some displays are as large as 3 inches and are backlit for better visibility. Some screens will also show the time, date, and even battery level if the call blocker is battery-powered.


Call blockers often work with your telephone service providers and their level of compatibility affects their performance. It is generally ideal to go for a call blocker with extensive compatibilities such as DSL, FIOS, PSTN, or VOIP to improve its versatility, but it’s ultimately your decision and depends on what you need the call blocker for.


Some call blockers have extra features such as multiple modes, pre-stored known unwanted numbers, automatic deletion of old unwanted numbers, and more. Some call blockers even block incoming calls that do not have identifiers, such as those listed as “Unavailable,” “Name Not Provided,” or “Private.”

Get the Best Call Blocker of 2022!

Now that you’ve gone through these reviews, we hope you feel prepared to choose the best call blocker for you. It’s time to make your order to reclaim your phone privacy.

Our Top Choice
Ooma Telo Home Call Blocker
Best Value
Tel-Sentry Inc. Sentry 2 Call Blocker
CPR Call Blocker V5000
Obihai OBi200 1-Port Phone Adapter
MCHEETA Telemarketing Call Blocker