We have a computer lab manager whose office is in the bowels of a building where he gets no cell reception. We'd like a way to send him messages when something needs to be fixed in the lab.
What's a simple, free, platform-independent, non-corporate, internet-based messaging application?
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@sideshow_jim Is that the name of an app, or a literal airhorn?
One of the faculty in that building has pet rats. I'm sure we could attach tiny strips of paper to them and train them to scurry through ducts...
@peterdrake no app, just an air horn!
I like the rats idea though, could convey a lot more info that way. Maybe train then to take micro SD cards