Alert : Silent call scam – silent calls can verify your number, capture your voice or push you into calling a premium-rate number

You answer, but no one speaks, or the call cuts off after a few seconds.
Stay alert: a silent call may be used to check your number, record your voice or encourage you to call back a premium-rate number.

Silent call scam

This scam relies on calls with no real person on the line, sometimes generated automatically.
They may seem harmless, but they are often used to prepare a more targeted phone scam.

How it works

Scammers call large numbers of phone numbers to identify which ones are active and likely to answer.
In some cases, they also try to obtain a few words of your voice so they can later exploit them in an attempted AI voice-cloning scam.
They may also rely on your curiosity to make you call back a premium-rate number, which can lead to high phone charges.

Warning signs: no voice on the line, prolonged silence, quick hang-up, unknown or foreign number, repeated calls, no voicemail message, a number that encourages you to call back, increase in suspicious calls after you answer.

A few tips:

• 📵 If the number is unknown, or if the caller ID is withheld or blocked, say nothing and let the other person speak first.
• 📞 Never call back an unknown number that hangs up without leaving a clear message.
• 🔇 If the call is silent, hang up quickly without speaking.
• 🗣️ Avoid repeating your name, saying “yes” or engaging in conversation with a suspicious caller.
• 🚫 Block numbers that repeatedly make this type of call.
• 🌍 Be wary of foreign, short, unknown or unusual numbers.
• 💸 Check your phone bill if you have called back a suspicious number.
• 📱 Enable the anti-spam filters offered by your phone or your operator/carrier.
• 👥 Warn people around you, especially those who tend to call back unknown numbers easily.

Conclusion

A silent call should not be taken lightly, especially if it happens repeatedly or comes from an unknown number.
It may be used to confirm that your line is active, collect a voice sample or trigger a call back to a premium-rate number.

You can report this type of call through official platforms such as Ofcom (UK), Action Fraud (UK), FCC Consumer Complaint Center (US) or ReportFraud.ftc.gov (US), then talk about it around you to help prevent other victims.

To better understand the reflexes to adopt when facing suspicious calls and messages, these resources may help you:

• 👉 Essential reflexes to avoid online scams
• 👉 Understand frauds and know how to react
• 👉 Find useful anti-fraud resources for consumers

Free tools are also available to check a situation, report fraud or train yourself to spot traps:

• 👉 Interactive guide to know what to do after fraud
• 👉 Reporting assistant to find the right official channel
• 👉 Anti-fraud crash test to learn how to recognise suspicious signs
• 👉 Suspicious link checker to assess a URL before clicking
• 👉 Offer analyser to determine the risk level of fraud before paying

Written by : René Ronse
Methodology : Our alert articles are based on regular monitoring of national reporting platforms, feedback from victims, and statements issued by relevant authorities.
About the author : René Ronse, manager of ArnaqueOuFiable.com. Expert in consumer cybersecurity, specialist in detecting online fraud, product transparency, and digital compliance. He has over 20 years of experience analyzing hidden subscription mechanisms, unreadable terms and conditions, aggressive sales tactics, and deceptive commercial practices on the web.
Sources : tf1info.fr | economie.fgov.be | safeonweb.be | consumer.ftc.gov | europa.eu
Last updated : 19 June 2026.
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