My iPhone notifications is not making any sound?

My iPhone notifications is not making any sound?

Heyy. Okay i was having the same problem!
So go to your settings and click on notifications.
After that, scroll down to the things that are "Not in Notification Center" and click on one that you want to notify you. Swipe the top bar from Off to On and edit if you want.
Keep repeating for everything you want notifications for!
Hope this helps! :*
~xxx

I'm having the same issue, but only with facebook. Texts and phone calls work, this started with the update to iOS 6