National Rail stations are equipped with visual platform displays and audio announcements which indicate the next service or services from the platform, and which warn passengers to stand clear of trains which are not scheduled to stop, which are not in use, or which are about to depart. Additionally, concourses and ticket offices have large screen displays which show all of the services available at the station for the next hour or more, and (at major stations) the full route of the service and any restrictions applicable (e.g. ticket types, catering services, bicycle carriage). Many smaller and less well-used railway stations do not have such systems, but rather have "passenger help points" which connect the user by telephone to a control room by pushing an "Information" button.