For some reason, this popped in to my head last night. I was on a speed awareness course a while ago and the instructor was telling us calling 112 from a mobile is better than 999 as it allowed the emergency services to locate you, it gets through even where there isn't a signal and I'm sure some other stuff too.
Now, my bullshitometer was tingling throughout, but not having the facts at my disposal I kept schtum. So, is it indeed bollocks? Is 112 any 'better' than 999?