Check the iPhone ringer and volume. On the side of every iPhone are three buttons: the ringer/mute switch and two volume ...
Check notification settings for the app. Check the iPhone notifications' sound settings for the app. Some apps, such as Reminders and Messages, let you choose a notification sound. If this sound is ...
Is sound not working on your Mac? Sound issues on Mac are pretty common. You may run into them when you connect or unplug an audio accessory during playback, use an app that accidentally misconfigures ...