Windows open and start playing while I'm talking on my Galaxy S4, how can I stop this?

[AC Question]

Windows open and start playing while I'm talking on galaxy 4

The internet comes on while I'm talking on phone and i have to close it so I can hear my conversation
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[Rukbat]

Re: Windows open and start playing while I'm talking on galaxy 4

Is the screen still lit when you're talking? If so, you're pressing things with your cheek. The proximity detector is supposed to turn the screen off when you're on a call and the phone is near you. It could be broken or it could be covered by a screen protector that's keeping it from detecting your face. (It's at the top of the phone, to the right of the earpiece.)