I heard an interesting thing this week....
Apparently, if you dial 112 from a mobile instead of 999, the 'phone will use all avaliable networks (regardless of subscription) to find the strongest signal for the call, and use all available masts to calculate the most accurate triangulation to a grid-reference for your position which is passed to the emergency services. Hmmm... wow!
I can't verify this, nor the rumour that 112 may eventually replace 999 as the standard emergency service number.
Does anyone have any further infornation on this?
I notice that there was a hoax about a year ago which suggested that 112 used satellites instead of ground station masts: http://news.bbc.co.uk/1/hi/technology/4724101.stm