If new or unknown numbers cannot reach your Xiaomi 15 Ultra, calls may go straight to voicemail or never ring at all. This usually points to call blocking rules, filters, or network settings that quietly stop unfamiliar callers. The fix is often quick once you know where to look.
Why New Numbers Cannot Call Your Xiaomi 15 Ultra
- Unknown callers are blocked or filtered by default.
- Do Not Disturb is silencing calls from non contacts.
- Call blocking rules are enabled in the Phone app.
- Network settings are misconfigured or temporarily unstable.
- A third party call blocking app is interfering.
1. Check Blocked Numbers in the Phone App
Blocked numbers are the most common reason new callers cannot get through. If a rule blocks unknown callers, your phone will reject them automatically.
Open the Phone app, and then tap the three dot menu.
Tap Settings, and then tap Blocked numbers.
Disable Block calls from unknown numbers if it is enabled.
2. Review Call Blocking Rules
Xiaomi phones allow advanced call filters that block calls silently. These rules can stop spam, but they may also block legitimate new numbers.
Open the Phone app, and then tap the three dot menu.
Tap Settings, and then tap Call blocking.
Turn off any rule that blocks unknown or hidden numbers.
3. Check Do Not Disturb Settings
Do Not Disturb can block or silence calls that are not in your contacts. This makes it seem like new numbers cannot call you at all.
Open Settings, and then tap Sound and vibration.
Tap Do Not Disturb, and then tap Exceptions.
Allow calls from anyone, or add new callers to the allowed list.
4. Disable Third Party Call Blocking Apps
Some apps automatically block unfamiliar numbers to reduce spam. These apps may be more aggressive than expected.
Open Settings, and then tap Apps.
Tap Manage apps, and then find any call blocking or security app.
Disable or uninstall the app and test incoming calls again.
5. Reset Network Settings
Network issues can prevent calls from connecting properly. Resetting network settings refreshes your carrier connection without deleting personal data.
Open Settings, and then tap More connectivity options.
Tap Reset network settings, and then confirm the reset.
Restart your phone and ask a new number to call again.
Once call blocking rules are adjusted, most new numbers can reach your Xiaomi 15 Ultra without any trouble. After these fixes, incoming calls should ring normally again.
FAQs
Why can saved contacts call me but new numbers cannot?
This usually means unknown callers are blocked or silenced. Check call blocking and Do Not Disturb settings to allow calls from anyone.
Will resetting network settings delete my data?
No. It only resets Wi Fi, mobile network, and Bluetooth settings, not apps or files.
Can carriers block new numbers from calling?
Carriers rarely block individual numbers unless there is a network issue. Most call blocking problems come from phone settings or apps.
