It can be confusing when your Samsung Galaxy S25 Ultra suddenly stops receiving calls from new or unknown numbers. You might notice that familiar contacts can still reach you, but new callers go straight to voicemail or fail to connect at all.
This issue usually stems from blocked settings, call filters, or network configuration problems. The good news is that it’s easy to fix once you know where to look.
Why Your Galaxy S25 Ultra Might Not Receive Calls from New Numbers
- Blocked or restricted numbers setting is enabled.
- Do Not Disturb or call-blocking apps are active.
- SIM card or network registration issue.
- Caller ID or call display settings are misconfigured.
- Software bugs after a recent update.
Check the Blocked Numbers List.
Sometimes new numbers get blocked automatically if they resemble spam or were previously marked as such. Checking the block list ensures they can reach you.
- Open the Phone app, and then tap the three-dot menu at the top right.
- Tap Settings, and then tap Block numbers.
Look through the list and remove any numbers you don’t want blocked. Also, toggle off Block unknown/private numbers if it’s turned on.
Disable Do Not Disturb Mode.
When Do Not Disturb is active, it silences all incoming calls except those from allowed contacts. This could explain why new numbers can’t get through.
- Open Settings, and then tap Notifications.
- Tap Do Not Disturb, and then toggle it off.
You can also customize exceptions if you want to keep DND on but still allow calls from all numbers.
Check Call Screening or Spam Protection.
Samsung’s built-in call screening may automatically block numbers it detects as spam. Adjusting this setting can help new numbers reach you.
- Open the Phone app, and then tap the three-dot menu at the top right.
- Tap Settings, and then tap Caller ID and spam protection.
Turn off Block spam and scam calls temporarily to test if this feature is filtering out legitimate calls.
Test with Another SIM Card.
A faulty SIM card or network issue can prevent incoming calls from registering properly. Testing with another SIM can help confirm whether the problem is with your carrier.
Turn off your phone, insert a different SIM card, and then power it back on. If calls from new numbers work, contact your carrier to replace your SIM or refresh your network registration.
Reset Call Settings.
If incorrect configurations are preventing calls, resetting your call settings can resolve it quickly without affecting your personal data.
- Open the Phone app, and then tap the three-dot menu.
- Tap Settings, and then scroll down and tap Reset call settings.
Once done, restart your phone and test again by calling from a new number.
Update Your Software.
Sometimes network or call handling issues occur after system updates. Keeping your Galaxy S25 Ultra updated ensures bug fixes are applied.
- Open Settings, and then tap Software update.
- Tap Download and install, and then follow the on-screen instructions if an update is available.
After updating, reboot your phone and test incoming calls again.
If you’ve gone through these steps, your Galaxy S25 Ultra should now receive calls from all numbers without issue. Most of the time, it’s caused by blocked numbers or network filters that can be quickly adjusted in settings.
FAQs
Why do calls from new numbers go straight to voicemail?
This often happens when Do Not Disturb or call-blocking is active. Disabling these settings usually solves the problem.
Can a faulty SIM card cause missed calls from new numbers?
Yes. A damaged or misconfigured SIM can block incoming connections. Replacing it or reseating it may fix the issue.
Do I need to reset my phone to fix this problem?
No. In most cases, checking blocked lists, adjusting filters, or resetting call settings resolves the issue without a full factory reset.
