[joelkoen]

> What happens if a train has to stop in the middle of the tunnel, and you phone for help? [...] the system has been deliberately configured to transmit the location of the nearest tube station, where access can be arranged. That’s why sometimes you might check your smartphone map, and it will display the “wrong” location, because that’s the best one for a 999 call to use.

This doesn't seem correct - cell towers don't just transmit a location that phones then pickup and use? Unless this is some emergency specific feature I'm not aware of?

[bobmcnamara]

> This doesn't seem correct - cell towers don't just transmit a location that phones then pickup and use?

I think it works like this: Towers transmit location. If the phone has no other source of location data, it'll fall back to "probably within radio range of this only tower I can hear"