[Sharkie405]

I believe that's the way it's supposed to be. Like if you get a text and then go to the page when the text tone is still ringing, it will stop when you get to the page or a second thereafter. So, if you're already on the text page it will sound for a second only and then stop because it realizes that you're already aware (so to speak) that a text has been received since you're already in that page.