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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →If an unexpected caller claims to be your bank, a government agency, law enforcement, or someone you know, do not trust caller ID to prove who they are. Hang up, then contact that person or organization using a number you find independently. If you have already sent money or shared sensitive information, contact the relevant bank, payment provider, or identity-theft resource promptly and report the incident through official channels.
How to tell whether a caller is impersonating someone
Phone-based impersonation scams use a trusted name or situation to pressure you into paying, sharing information, or taking action. The caller may claim to represent a government agency, police department, court, bank, or business, or pretend to be a family member or romantic contact. Common stories involve an alleged crime, unpaid debt, account problem, emergency, expiring license, missed jury duty, prize, or benefit at risk.
Look for pressure and unusual payment demands
- Urgency: the caller insists you must act immediately or face arrest, prosecution, financial loss, or another serious consequence.
- Secrecy: they tell you not to talk to family, your bank, or anyone else, or demand that you remain on the call.
- Unusual payment methods: they ask for cryptocurrency, a wire transfer, a payment app, prepaid or gift cards, cash, or a courier.
- Requests for sensitive information: they seek account credentials, verification codes, Social Security details, or bank information.
A familiar caller ID name or number does not authenticate the caller: scammers can spoof it. An employee number, personal details, or a convincing voice or video is not proof either. The FBI has warned that scammers use AI-generated video and impersonate agency reporting services. An unsolicited social-media contact offering to file a report or recover money is not a trustworthy substitute for an official channel.
What to do while the suspicious call is happening
- End the conversation. Hang up; you do not have to stay on the line because the caller says so. If it is a robocall, do not press buttons in response.
- Do not pay or disclose information. Do not give the caller money, account credentials, verification codes, Social Security or bank details, or other sensitive information. Do not click links sent in an unexpected message.
- Verify through a channel you find yourself. Look up the organization’s contact information on its official website, use a number on a statement, or call the number on the back of your bank card. Ask whether the claim is real. Do not call a number supplied by the caller or rely on caller ID.
- Treat government and law-enforcement payment demands as a warning sign. Do not pay to avoid arrest, prosecution, or an investigation. The FBI says authorities will not call or text to demand payment or sensitive information.
If you already paid or shared information
Contact the company or financial institution that handled the payment as soon as possible. Ask whether the transaction can be stopped or reversed; recovery is not guaranteed.
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#1 Best Overall
- COMPATIBILITY: For traditional analog landline phones and services from providers such as AT&T, Verizon, Frontier Communications, CenturyLink, and Brightspeed. Not compatible with internet-based or digital phone services (VoIP), including Vonage, Ooma, Xfinity Voice, and Quantum Fiber.
- IMPORTANT: The V5000 CPR Call Blocker requires Caller ID service and an analog telephone line. Without Caller ID, incoming numbers cannot be identified or blocked. No mains power required - just plug it into your phone line and use.
- Powerful Blocking, Made Simple: Preloaded with 5,000 verified scam and nuisance numbers, the V5000 starts protecting you right out of the box. And if a new or spoofed number gets through, the large “BLOCK NOW” button makes it easy to instantly block it - up to 1,500 additional numbers at your command.
- Realistic & Reliable Protection: While no device can stop 100% of spam (scammers constantly change numbers), the V5000 gives you the power to shut down repeat offenders quickly and effectively - offering more control than passive filters alone.
- Hassle-Free Design: NO POWER supply needed, NO APP, and NO SUBSCRIPTIONS. The V5000 is easy to install, with a clear screen and loud button click for extra confidence. Designed with seniors in mind, it’s ready to use and simple to maintain. For even stronger protection, you can pair it with your phone provider’s spam filtering service.
- Credit or debit card: Ask the card issuer whether it can reverse the fraudulent charge.
- Bank withdrawal or wire: Contact your bank and ask whether it can reverse an unauthorized withdrawal or wire transfer.
- Payment app: Report the fraudulent transaction to the app provider and the linked card issuer or bank.
- Gift card or cryptocurrency: Contact the gift-card issuer if you shared a code, or the transfer or cryptocurrency provider if applicable.
- Cash sent by U.S. mail: Contact the U.S. Postal Inspection Service promptly and ask whether the package can be intercepted.
If you shared your Social Security number, use IdentityTheft.gov for recovery steps. Change any compromised password, including on other accounts where you reused it. Be wary of follow-up messages or calls offering to recover your money in exchange for payment or personal information.
Where to report a phone impersonation scam
Federal Trade Commission
If you lost money or have information about the caller or company, file a report at ReportFraud.ftc.gov. For an unwanted call with no financial loss, the FTC directs consumers to DoNotCall.gov. Include the number that received the call, the number shown on caller ID, any callback number the caller gave you, and the date and time if known.
Rank #2
- This is the latest version Telephone Call Blocker with hidden or unavailable call numbers can be blocked. And there is no fees to use it; Please keep the manual for future use.
- Block up to 4000 individual phone numbers, including incoming and outgoing calls , prefixes and up to 10 digit area codes.
- One-touch to Block: Locate a number and then press Block to add it to the blacklist.Better set the call blocker in series ( one end of it connected to your phone and another end to the PSTN telephone line); Though it can also be set up parallel, but not compatible with some phone systems.
- Permanent storage of the numbers in the blacklist even power is off or telephone line is plugged out.
- Battery free: It is line powered, no need battery. And it works with almost all single line telephones. If you find some numbers are blocked but you never mean to, then press Block and check your blacklist, then delete those numbers which like area codes or prefix numbers.
FBI Internet Crime Complaint Center
For law-enforcement or government impersonation schemes, use the legitimate IC3 website. The FBI warns that impostors may create lookalike reporting pages or contact victims through social media. IC3 says it does not recover money through social media or paid recovery services.
Other official contacts
For a government impersonation, the FTC also recommends reporting it to your state attorney general. If a caller claims to represent a particular agency, find that agency’s contact details independently rather than using information the caller provides.
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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsRank #3
- COMPATIBILITY: Works with most traditional analog landline phones and services from providers like AT&T, Verizon, Frontier, CenturyLink, and Brightspeed. NOT COMPATIBLE with internet-based or digital phone services (VoIP), including Vonage, Ooma, Xfinity Voice, and Quantum Fiber.
- CALLER ID REQUIRED: The V100K requires Caller ID service to identify incoming numbers. Without it, calls cannot be blocked automatically. No external power supply is needed - simply plug into your phone line and start using it.
- EASY MANUAL BLOCKING: Preloaded with 100,000 known nuisance numbers and allows instant blocking of new or repeat numbers using the large “BLOCK NOW” button. You can add up to 10,000 additional numbers, giving you control over unwanted calls.
- REALISTIC CALL PREVENTION: While no device can stop 100% of spam or spoofed numbers, the V100K helps shut down repeat offenders quickly and gives you more control than passive filters alone.
- SIMPLE DESIGN: No power supply, app, or subscriptions required. Clear display, tactile button, and simple installation make it easy for seniors or anyone to use. For extra protection, pair it with your phone provider’s spam filtering service.
How widespread are impersonation scams?
The FTC reported $3.5 billion in losses to imposter scams in 2025 and said nearly one in three fraud reports that year concerned imposter scams. These figures cover imposter scams across contact methods, not phone-only scams. The FBI’s Internet Crime Complaint Center reported nearly 61,000 complaints and more than $1.6 billion in losses from law-enforcement or government impersonation scams between January 2025 and July 2026. The FBI says those schemes primarily used unsolicited calls but could also involve texts and email; the figures are not phone-only totals.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Can call blocking help?
Call-blocking apps, carrier services, and devices can reduce unwanted calls, but they do not verify a caller’s identity or guarantee that spoofed calls will be blocked. If you consider a tool, check that it works with your service—landline or mobile—and review which calls it filters, along with its cost and terms. Whatever tool you use, independently verify unexpected requests for money or information.
Quick Recap
Best Value
- How it Works: SPAM identified calls are instantly blocked automatically. Preferred Calls Ring through like normal with Caller ID displayed. Your phones connected to the TEL port Won't Ring on Blocked Calls. Create your own Invited or Allowed Family (White List) and block All other callers. Use the Dual Block Buttons to Block a NAME or NUMBER Displayed. Remote Block a Call when Dialing * 2 # through your telephone handset.
- The Patented ProSeries 3 Call Blocker from Digitone is an Easy Installation and is Simple to Use. No need to rush over and tap a red button when the ProSeries has already blocked a known unwanted SPAM, Out of Area, Private, Anonymous, 800 Service, ROBO?, Dashes, "Quotes" or V123+ call. Use Call History to select Any Caller to Block by (Double Tap) Name or Number. Block any NAME like: Unavailable, Unknown, SCAM RISK, City + State, Potential Scam, Wireless Caller. Block ANY call without answering, as they call in with either RED button.
- Feel confident that the ProSeries already Blocks Millions of Known Unwanted Numbers and Fake Names. No need to change your existing phones or service. Works with Any Analog Corded, Cordless Phone or Fax System on any telephone service. Large Back-Lighted Display. Got questions? Call the number on the front screen of the ProSeries 3.
- Works with all USA phone companies: AT&T, Cox, Spectrum, CenturyLink, Cable Modems, DSL, FIOS, or Digital Services from VoIP Telcos like [V] from Verizon, Ooma Telo, Ooma Basic, Vonage, Magic Jack etc. Also, works in Mexico, Canada, Brazil, European Union (ETSI), Australia, Singapore and others with North American standardized phone lines.
- Allow any blocked caller to ring through like normal with the Green Invite Button. Double Tap the Green Button to add VIP callers shown in Call History. Note: Caller ID Name and Number Service from your phone company is required for this model to work automatically.
Rank #4
- 4000 GROUPS BLACKLISTThe call blocker has 4000 groups of large capacity blacklist storage, blocking all nuisance calls.
- LCD SCREEN DISPLAYCall Blocker for Landline Phones Telephone uses LCD screen display for easy operation and simple buttons for easy operation.
- PLUG AND PLAYThe call blocking device is designed with dual plugs, plug and play, suitable for most landline phones.
- ANTI HARASSMENTOur call blocker can block nuisance calls, super filtering anti harassment, guarding private pure space.
- EASY TO USECall blocking device with LCD display is easy to use, just press the block buttons to block incoming calls permanently.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
