<http://schema.org/about>
"The SMS (short message service) is an institution in Scandinavia, and its use is saving time and paper in a number of applications - the Vasttrafik transit system in Sweden lets tram and bus travelers send an SMS (the ticket fee appears on the phone"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/mobile-phone-messaging-for-tidy-toilets.html>