FaceTime Monitor

repeat
    repeat while application "FaceTime" is running
        tell application "System Events"
            try
                tell process "FaceTime"
                    set s to size of window 1
                    set x to first item of s
                    set y to second item of s
                    if x is equal to 638 and y is equal to 585 then
                        tell application "FaceTime" to quit
                    end if
                    click button "Accept" of window 1
                end tell
            end try
        end tell
    end repeat
    delay 60
end repeat