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How to Block Spam Calls and Phone Blocker Tips)

  • 2d
  • 3 min read

Spam calls are becoming more common in Australia.

From fake delivery notifications, endless electricity discount offers, to scam “ATO” calls, unwanted phone calls can be frustrating and sometimes dangerous.


Hand holds smartphone covered in red sticky notes with "SPAM" texts.

If you’re searching for:

  • How to block spam calls

  • How to stop scam calls on iPhone

  • Best phone blocker settings

  • How to block unknown numbers

  • How to report spam calls in Australia


This guide explains how to block spam calls step by step and protect your mobile number.


Why Am I Getting So Many Spam Calls?

Spam calls usually happen because:

  • Your number was entered on online forms

  • Your data was leaked in a breach

  • Random number dialling (robocalls)

  • Previous marketplace listings

  • Overseas scam operations

Blocking and filtering is the best first line of defence.


How to Block Spam Calls on iPhone


Option 1: Block a Specific Number

  1. Open the Phone app

  2. Tap Recents

  3. Tap the “i” icon next to the number

  4. Scroll down

  5. Tap Block this Caller

That number can no longer call, text, or FaceTime you.


Option 2: Silence Unknown Callers (Very Effective)

This feature automatically silences numbers not in your contacts.

  1. Go to Settings

  2. Tap Phone

  3. Select Silence Unknown Callers

  4. Toggle it on

Calls from unknown numbers will go straight to voicemail but will still appear in your Recents list.


Important: If you enable this feature, you may miss important calls from delivery drivers, medical services, new clients, schools, or anyone not saved in your contacts.


How to Block Spam Calls on Android

Steps may vary slightly depending on brand (Samsung, Google Pixel, etc.).


Option 1: Block Individual Numbers

  1. Open the Phone app

  2. Tap Recent calls

  3. Tap the number

  4. Select Block or Report spam


Option 2: Enable Spam Protection

Most Android devices include built-in spam detection.

  1. Open Phone app

  2. Tap the three dots (menu)

  3. Go to Settings

  4. Select Caller ID & Spam

  5. Turn on Filter spam calls

Some phones automatically warn you when a call is suspected spam.


What Is a Phone Blocker App?

A phone blocker app filters and blocks suspicious calls automatically.

Popular features include:

  • Spam call detection

  • Automatic blocking

  • Community-reported scam numbers

  • Reverse number lookup

However:

  • Some apps require subscription fees

  • Some request access to your contacts

  • Built-in phone settings are often sufficient

Always check privacy permissions before installing third-party apps.



How to Report Spam Calls in Australia

If you receive scam calls, you can report them to:

  • ACMA (Australian Communications and Media Authority)

  • Scamwatch

Reporting helps authorities track scam patterns.


Can My Mobile Provider Block Spam Calls?

Some mobile providers offer network-level spam filtering, but device-level protection is usually more effective.

If you’re with E.Tel, you can:

  • Block numbers directly on your phone

  • Contact support if suspicious activity persists

  • Change your number if necessary (in extreme cases)

A stable mobile network ensures legitimate calls still come through clearly.


How to Protect Your Number From Future Spam

Practical tips:

  • Avoid publishing your number publicly

  • Be cautious entering your number on unknown websites

  • Use a secondary number for online listings

  • Enable dual SIM if separating work and personal calls

Many Australians use a second SIM for:

  • Marketplace selling

  • Online dating

  • Business enquiries

  • Temporary projects

This reduces exposure of their primary number.


Frequently Asked Questions

  • Why do spam callers hang up immediately?

    Often they are testing if your number is active.

  • Should I answer spam calls?

    It’s better not to answer unknown numbers unless expecting a call.

  • Does blocking a number stop SMS too?

    Yes, in most cases it blocks both calls and texts.

  • Can scammers spoof local numbers?

    Yes. Caller ID can be faked. That’s why blocking by number alone isn’t always enough.


Final Thoughts

Blocking spam calls is easier than ever thanks to built-in iPhone and Android features.

Enable spam filtering, silence unknown callers, and block suspicious numbers immediately.

While no solution eliminates spam entirely, combining phone settings with smart habits significantly reduces unwanted calls.


If you want better control over your mobile usage, using a reliable mobile plan and potentially a secondary number can help you manage privacy more effectively. E.Tel Mobile keeps things simple. So you can stay connected without unnecessary complications.

 
 
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