No..

Whilst the GSM spec does require it no UK network will accept roamer
emergency calls from any other UK network.

On Jun 27, 6:40 am, n...@mellis.me.uk wrote:

ooo it's been a while

The EU seems to have had a bit of a push re 112 recently.
Info at http://ec.europa.eu/112/
(Doesn't necessarily answer the OP's question, but has some useful info)

Not in the UK.

As other have said, it's been a while since this uber-regular question
has been thrown at us but in the UK it's a NO.

But you can check out which emergency numbers your phone will route by
turning on the keypad lock.  With the keypad locked hit 999 and does
the handset prompt you to call?  Now do the same with 112 and a couple
of the other numbers (911 might also work).

On a GSM handset the call isn't routed through to any particular
number (unless you're a politician and need that emergency desk) for
an Emergency Call it just routes it through to the network using the
emergency flag and the network will prioritise that call accordingly.
When I say it'll be a priority then if the cell you're connected to is
full (all data used up on it) instead of getting a network busy beep
your network will generally terminate someone elses call and yours
will be connected in their place.

I've noticed that on my iPhone when it's locked it'll have the "slide
to unlock" area, one slides and it lists the number keys, cancel and
"Emergency Call" hitting Emergency call turns the screen to "Notruf,
Appel d'urgence, Solo emergenzie, Emergency Call" mode and lists a
keypad but keying in 01234567890 will still connect you to the
emergency services of the country you're in.

And, in line with US law, before the phone is activated (ie. you've
just ripped the box open and turned it on) the "slide to unlock" bar
is "slide for emergency" in several languages.

If QI is to be believed the emergency services in the USA are swamped
every Christmas Day with people who have got a new phone as a prezzie
but they can't activate their handset (network generally isn't in on
Crimbo Day) the only people they can call is 911 so they do in huge
numbers just to test to see if it's working, so it's probably good
that this doesn't work the same way in the UK.