Deutsche Bahn AG offers a Travel Information System ( (RIS)). This shows current train times compared to the published timetable, as well as known delays and expected arrival and departure times of the trains. This information is made available to the train conductor (via SMS) as well as to the passenger via loudspeaker in the train station or schedule boards on the internet. The corresponding VRR and VRS information systems also process RIS data. The data can also be queried in real-time via mobile devices like mobile phones.