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How to Silence | Stop Unknown Calls on iPhone?

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Published By Stephen Mag
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Approved By Admin
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Published On April 3rd, 2026
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Reading Time 5 Min Read

Let’s be honest with you–spam calls are the most annoying thing if I have a smartphone. Whenever I block one credit card seller’s number, another one starts ringing my phone. Along with “best credit card deal”, I have also been receiving calls from telemarketers, scams, & various unknown numbers. It’s a total headache, but if I block all unknown calls on iPhone, I may miss important one. In this blog, Cybersics expert will help you stop unknown calls on iPhone.

If you are using iPhone, then this blog is for you! If users have an Android phone and want to block spam & unknown numbers on Android, another guide is also available here. In this blog, we will explain every step to stop unknown calls on iPhone. Look at aforementioned smart ways to stop spam calls easily.

Main Reasons You Can’t Escape Spam Calls

Before jumping into any solutions, let’s know main reasons for getting too many calls from unknown numbers on iPhone.

Spam or Unknown Calls Happen cause: –

  • When your number is stored in online database.
  • Whenever you used number to sign up on website.
  • Your number got leaked or sold to marketing companies.
  • Automated robocall systems target random numbers.

And yes, Apple phones are not immune to more.

Method 1 — Try “Silence Unknown Callers”

This is easiest fix that users can use on iPhone without downloading any third-party app from App Store. Users get best built-in feature if their goal is stop unknown calls on iPhone instantly. If Follow mentioned steps:

  1. Open Settings
  2. Go to Apps → Phone.
  3. Tap “Screen Unknown Callers
  4. Now Select “Silence” option.

Take 1 Minute Attention: It will mute your phone when an unknown number tries to call you, but if the number isn’t saved in your phone and it’s important call, then voicemail will also be saved in your phone to help you to know important message. If you are expecting a call from a new number, such as delivery order, you might want to temporarily turn this off.

What happens when you stop unknown calls on iPhone?

  • All unknown calls will be silenced.
  • The phone ring didn’t disturb you.
  • You get voicemail from unknown caller.
  • iPhone users still see unknown calls in Recents.

Method 2 — Block Specific Numbers Manually

This method helps you to block specific number that is annoying to call again.

Follow these steps:

  1. Open iPhone again, go to app.
  2. Now users need to go to Recents
  3. After that, tap the “i” icon next to number.
  4. Lastly, scroll down & tap Block this Caller option.

When to Use this Method?

  • When some continuously calling you.
  • Trying to defraud or scam you.
  • Whenever you receive harassing calls.

Method 3 — Hidden Trick Filter Unknown Sender & Calls

Many people have been using iPhones for decade, but they still don’t know the hidden settings that help you to get rid of spam calls on iPhone. But now let’s learn the simple yet hidden trick to filter unknown numbers more subtly.

  1. Go to Settings.
  2. Tap Phone.
  3. Enable “Call Blocking & identification.”

Alternative 4 — Use Spamblocker to Block Spam Calls on Apple Phones

Apple allows apps to find and block spam calls automatically. But if users don’t want to block unknown numbers because they received important delivery calls, then they can use third-party apps to know who SIM card owner is. Users can try Truecaller, Hiya, or Robokiller applications that are available on App Store to know who’s calling them.

Alternative 5 — Enable DND (Do Not Disturb)

There is another method also available to avoid spam calls on iPhone. Follow these steps to know how to stop unknown calls on Apple phone.

  1. Unlock your device.
  2. Go to settings.
  3. Tap on focus.
  4. Choose “Do Not Disturb” option.

User Tip: All calls & notifications will be muted. You also miss important calls if you always enable “Do Not Disturb”. Customize all phone & notification settings as you need before enabling DND. This alternative plus point is that you can also didn’t get Phone ring by unknown calls.

Alternative 6– Turn off Announce Calls in iPhone

This setting didn’t block spam calls on iPhone, but it stops the irritation if you regularly get calls from unknown numbers.

  1. Open iPhone.
  2. Go to Settings >> Search Phone >> Go to Phone.
  3. An option shown below is “Announce Calls.”
  4. You need to choose option: “Always, Headphones & Car, Headphones Only, or Never.

This option helps make Siri announce caller’s name/number every time. But you need to make sure Siri is enabled. Restart your phone when you enable this option.

Pro Tips to Reduce Spam | Unknown Calls in iPhone

  • Avoid sharing phone numbers on social media platforms.
  • Use email ID to sign up with websites, if they have option.
  • Always be careful with OTP based sign-ups.
  • Don’t immediately answer unknown calls.
  • Activate DND via your telecom provider.

Final Thoughts,

iPhone is used by many users worldwide, and incoming spam calls are completely unpredictable. Stop unknown calls on iPhone by using the built-in spam blocker on Apple. Manually, you can also block those number too who are irritating you from calling again. Don’t ruin your day with spam calls, and stop spam calls without any annoyance within few steps without installing apps. I hope you find out every feature that helps you to block unknown numbers on Apple phone.

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