My GS4 notifications are ringing continually.

[AC Question]

I don't know why this phone keeps sounding every 2 seconds. I want it to only ring when I receive a call or text. I went to app manager and unchecked all notification boxes....no help. Right now I have notification volume off. That will not allow text notifaction, right? All help topics say to go into settings and tap this or that, but I don't see the same settings on my phone.