[DanLivesHere]

Or even text messaging. Text "M15 AT 53" to "311411" and you find out when the next bus is going to be at your stop. That'd work.

[dane]

Melbourne uses a four digit number for tram stops (for use via text, automated voice, web and apps) and it works quite well. http://tramtracker.yarratrams.com.au/phone/