A safer plan for how to stop robocalls
Use carrier call blocking, turn on phone-level spam filters, avoid answering unknown numbers, block repeat callers, report scam attempts, and never press buttons to “opt out” of a suspicious automated call. The goal is fewer interruptions and fewer chances to confirm your number is active.
You probably cannot eliminate every unwanted automated call. Scammers rotate numbers, spoof caller ID, and use cheap internet calling tools. You can still make your phone quieter and make yourself a harder target.
The FTC’s scam resources at consumer.ftc.gov/scams are a useful starting point for spotting common fraud patterns behind phone calls, texts, and impersonation messages.
Start with call blocking and labeling

Your phone company may already label suspicious calls as spam, scam likely, telemarketer, or unknown. Turn on every free call-screening feature available through your mobile carrier or landline provider. If your provider offers an app, check whether the free tier is enough before paying for extras.
On a smartphone, look for settings that silence unknown callers, send suspected junk to voicemail, or block repeat numbers. Those settings vary by phone and carrier, but the idea is the same: let known contacts through while forcing questionable calls to prove themselves by leaving a message.
Do not answer just to tell the caller to stop. With illegal scam calls, pressing 1, speaking to an agent, or confirming your name may only show that the number reaches a real person. Let voicemail filter the call first.
Register for the Do Not Call list as a partial defense
The National Do Not Call Registry can reduce legitimate telemarketing calls, but criminals do not respect it. If a caller is already pretending to be your bank, a government agency, a delivery company, or a grandchild in trouble, a registry rule is not what stops them.
Still, registering is worth doing if you have not done it. It gives legitimate sellers a clear rule and gives regulators complaint data when companies ignore the law. Just do not treat registration as your only defense.
| Action | Helps with | Does not solve |
|---|---|---|
| Carrier blocking | Known spam patterns and high-risk calling campaigns | Every new spoofed or rotating number |
| Phone settings | Unknown callers and repeated nuisance numbers | Important calls from numbers not in contacts |
| Do Not Call registration | Law-abiding telemarketers | Criminal imposters and overseas scam campaigns |
| Reporting | Pattern tracking and enforcement leads | Immediate blocking of every future call |
Handle calls that still get through

Let unknown callers leave voicemail. Real businesses, doctors, schools, delivery drivers, and local offices usually can leave a useful message. Scam calls often avoid specifics or demand that you call back immediately through a number they provide.
If the message claims to be from a company or agency, do not use the callback number in the voicemail. Open your account app, type the official website yourself, or call the number printed on your card, statement, or bill. That extra step defeats many impersonation scripts.
If the caller mentions a name, address, business, or phone number you want to verify, use a reverse phone lookup for the number and a people search for public context around a claimed identity. Treat results as leads, not permission to call strangers or accuse someone.
Refuse to share sensitive information on suspicious calls
Do not confirm your full name, date of birth, Social Security number, address history, banking details, one-time codes, passwords, family names, or whether you live alone. A scammer can use small confirmations to make the next call sound more believable.
Also avoid saying “yes” to vague questions if the call feels wrong. The bigger issue is not a magic recording trick; it is that engaged callers can be moved into a stronger script. Hang up and verify separately.
A common scenario: a caller says your utility will be shut off in 30 minutes unless you pay through a payment app. They know your city and maybe your name. That does not make the call real. Utilities do not need secret payment apps to keep the lights on.
Tune mobile and landline settings
iPhone settings for unwanted automated calls
On iPhone, use the built-in setting that silences unknown callers if it fits your life, then rely on voicemail for legitimate callbacks. Also check your carrier app for spam labels and network-level blocking. If you are job hunting, waiting for medical calls, or managing elder care, silence settings may need a lighter touch.
Block individual numbers after they call, but do not expect blocking one spoofed number to end the campaign. Scammers often move to another number. The real value is combining device settings, carrier filtering, and better response habits.
Landline settings for unwanted automated calls
Landlines need provider-level help. Ask your phone company what call-blocking, call-labeling, anonymous-call rejection, or allow-list options are available. Some home phone systems and add-on devices can screen calls by asking unknown callers to press a key or state a name before the phone rings.
For older adults, set up a simple rule: unknown callers go to voicemail, and urgent money requests are checked with a trusted person first. AARP’s scam and fraud resources at its Fraud Watch Network section can help families talk through common phone fraud patterns.
Loosen blocking when it becomes too aggressive
Call blocking can accidentally hide calls you wanted, especially from doctors, schools, delivery drivers, repair technicians, pharmacies, and local offices. If you miss important calls, add trusted numbers to contacts, ask key providers what caller ID they use, and review blocked-call logs before assuming no one called.
Voicemail is the pressure valve. A real caller can leave a name, reason, and safe callback path. A scammer often leaves a vague threat or a number that does not match the organization being impersonated. If a setting sends too much to silence, loosen it slightly and keep the verification rule.
Act quickly if you already shared information
Act based on what was shared. If you gave a card number, call the card issuer from the number on the card. If you gave a password or code, change the password and review recent account activity. If you shared a Social Security number, consider credit freezes and closer account monitoring.
Save the call record, voicemail, text, payment receipt, and any number the caller gave you. Those details help banks, platforms, and reporting agencies understand the scam. Do not wait for the caller to call again before protecting the affected account.
Report the calls that matter
Report scam patterns, especially if the call involved money, identity information, threats, extortion, or account access. BBB Scam Tracker at BBB.org/scamtracker can help you search and share scam reports. If the call is part of online fraud or cyber-enabled crime, file with IC3.gov.
Keep the number, caller ID name, date, time, voicemail, text, link, payment request, and claimed organization. Reporting is more useful when you include the script, not just the phone number. Spoofing means the visible number may not identify the real caller.
Build a household robocall plan
The best plan is boring and repeatable. Unknown number goes to voicemail. Suspicious voicemail is verified through an official channel. No one gives codes, passwords, or payment information to an incoming caller. Urgent family emergencies are checked with another relative.
Write the rule near a landline or share it in a family chat. Include official numbers for banks, utilities, doctors, and local non-emergency police. When a call creates fear, the written plan gives everyone something to follow.
Review blocked-call settings every few months. Phone updates, carrier app changes, and new spam-label features can improve your setup. You do not need to chase every call. You need a system that handles most of them while preserving important messages.
Also review call logs for patterns. Repeated calls after one voicemail, bursts from similar area codes, or messages using the same script can help you decide what to block, report, or verify.
Frequently Asked Questions
How do you stop robocalls?
Turn on carrier call blocking, use phone spam settings, let unknown callers go to voicemail, block repeat numbers, and report scam attempts. Do not press buttons or speak to suspicious automated calls. The goal is to reduce interruptions and avoid confirming that your number reaches a responsive person.
How do you stop robocalls on iPhone?
Use iPhone settings to silence unknown callers if you can safely send unknown numbers to voicemail. Then check your carrier’s spam-blocking tools and block repeat numbers after they call. If you are expecting important calls from unknown numbers, use a less aggressive setting and rely on voicemail screening.
How do you stop robocalls on a landline?
Ask your landline provider about call blocking, call labeling, anonymous-call rejection, and allow-list features. Some home phones and add-on devices can screen callers before the phone rings. For scam prevention, let unknown callers leave voicemail and verify urgent requests through official numbers.
How do you stop robocalls on Android?
Use Android phone and carrier spam settings to screen suspected junk calls, then block repeat numbers after they call. If you are expecting important calls, avoid the harshest unknown-caller setting and let voicemail do more of the filtering. Report scam patterns and keep notes on repeated campaigns.









