1. Check your volume setting.

2. Check if you're in a mode that's silencing interruptions:

   • Open quick settings and tap Modes. If any modes are on, tap to turn them off. Your phone will ring for incoming calls.
   • If you want to keep a mode turned on, check its settings for a schedule that’s turning it on automatically, and its Notification filters to manage who or what can interrupt.
3. Check that your ringtone is not set to None.
4. Is your phone connected with a Bluetooth device? If so, all audio is routed to the Bluetooth device.
5. If you're using a ringtone that you installed, try using a ringtone that came with the phone.
6. Use safe mode to see if apps you installed are causing the issue and uninstall as needed. Begin with application types like launchers, task killers, or anti-virus apps.

1. Clear the data for the Phone app.

   Touch & hold , then touch > Storage & cache > Clear storage.

Outbound calls

1. If you hear a fast busy signal when you call a number, all cellular circuits may be in use, preventing the call from going through. Try calling again later.
2. If you hear a fast busy signal every time you call the same number, your number may be blocked by an app. Try calling from a different number.

Incoming calls

If you have a signal and can make calls, but callers tell you they consistently get a busy signal when calling you, check that you haven’t blocked their numbers.

1. If airplane mode is on, turn it off.
2. Turn your phone off and then on again.
3. Check for updates to your phone and messaging app.
4. Check if a software update is available for your phone.

Check your Do Not Disturb settings:

1. Check if you're in a mode that's silencing interruptions:

   • Open quick settings and tap Modes. If any modes are on, tap to turn them off. Your phone will ring for incoming calls instead of sending them directly to voicemail.
   • If you want to keep a mode turned on, check its Notification filters to manage whose calls can interrupt instead of being sent to voicemail.
2. You can start Do Not Disturb by placing your phone face down on a surface. If you don't want to send calls to voicemail when your phone is face down, go to Settings > Gestures > Flip for DND and turn it off .