What to do if iPhone sound does not not work?

My iPhone 4S has no water damage and I all ready looked at the mute bottom but still no sound. Some of my apps and games have sound buy like pandora no sound or my music advice please

All known issues, problems and their corresponding workarounds and solutions are listed in this link. Thats a ios 7 issue not of the phone so don't worry
Source(s):
http://wizdroid.blogspot.com&…

Try going into settings then sounds and see if the ringer and alerts bar is down, if it is that may be why

I would recommend calling Apple Tech support if none of the other answers help.
http://www.imore.com/...w-fix-them