I setup GV as my voicemail instead of AT&T's voicemail. Problem is when I hold the phone up to my ear to listen to the message, it doesn't disable the screen like the phone app does. Thus my cheek presses on the screen and sometimes even dials the person that left the voicemail. Very annoying. I know I can use the speakerphone, but I prefer the normal speaker. Is there any way to change this?