Unwanted Dial By Extension behavior

We have discovered that you can dial anyone's extension in the Ring Central System from an IVR Menu Announcement. Is there a way that this feature can be disabled in the Ring Central Admin Portal? We have told our staff that the dial by extension feature was not available in Ring Central and now we have discovered that this is not the case. You can dial anyone's extension including Message Only Extensions and Announcement Only Extensions from inside an IVR menu. We would like to disable this feature. Is there a way that the dial by extension feature in an IVR Menu can be disabled?