Why does my phone no longer emit any sounds?

[AC Question]

Does not ring, no notifications give an audible sound, only works when headphones are installed

 

[Tim1954]

Troubleshoot. Can you get any sound from speaker? If yes look in settings. If no you may have an issue with the speaker or the switch in the earphone jack.
Tell us what device you have and we'll give you the service menu so you can test the device.