Does a product exist combining a panic button with a gps (or mobile location) that links to police, ambulance or fire. 1 click police, 2 clicks ambulance, 3 clicks fire... sort of thing?
PS. 112 in Europe.
(edit) I meant to say that American 911 is European 112. I don't know if the police in European countries is supposed to react to dropped 112 calls or not. In Canada and in the US it is. A friend of mine saw it in action. He saw something, dialed, realized it wasn't a big deal, hung up, walked away 100 m, then, boom - not 2 minutes later a fire truck and a police car exactly where he called from. Their precision was really freaky.
It puffed up his chest a bit, but we talked about emergencies, how to get help, why we don't call 911 unless it's an emergency, etc.
I suppose if everyone did it they wouldn't be agreeable, but no one does, so you should too. :)
the thing is, 'europe' is a true overgeneralization, every country has different qualities of handling 112 emergency calls.
This explains. My old phone with a physical keyboard would allow me to dial 112 even when it was locked.
It's a bit of a problem in some countries - you get a lot of 'butt dialed' 112 calls - and the protocol in many jurisdictions if you have an emergency call and no voice is to assume the worst and send fire+police+medics
Following the advice above is very dangerous.
Full disclosure: I interned with them a few years ago when they were a startup out of Berkeley. Looks like they've grown a lot since then.