Greetings dannyboy322,
Thanks for using the Apple Support Communities!
From your post, I understand that the sound on your iPhone isn’t working for some notifications as expected. To troubleshoot this situation, there are two different articles I suggest reading over and working through.
The first article below provides troubleshooting information for not receiving notifications for a specific app.
To get notifications, you need to be connected to a Wi-Fi or cellular network. If you’re not getting notifications for a specific app, try these steps:
- Make sure that the app supports notifications. Go to Settings > Notifications, select the app, and make sure that Notifications are turned on.
- Make sure that you’re signed in to your Apple ID on your iOS device. Go to Settings > iTunes & App Stores and enter your Apple ID and password.
- Make sure that Do Not Disturb is turned off. Go to Settings > Do Not Disturb and tap Manual if it's turned on.
- If you’ve recently installed an app or restored from a backup, open the app to start getting notifications.
Use Notifications on your iPhone, iPad, and iPod touch - Apple Support
If the issue continues, the next article has information for troubleshooting sound in general on your device.
If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker - Apple Support
Have a great day!
