Reminder won't play sound

Hi Guys,



Running iOS7 on iPhone 5. I have noticed that when a reminder or to-do is triggered it doesn't play sound. It does vibrate but no sound. On settings it's set to have sound so I am not sure what's happening.



Any idea?



Thanks

via iLounge Forums http://forums.ilounge.com/iphone/278527-reminder-wont-play-sound.html