"Roland Perry" wrote in message
...
In message
, at
00:33:14 on Tue, 26 Oct 2010, MIG remarked:

It leaves the question: why would it cost the mobile company more to
connect to one of these numbers than to connect to any other number?

It doesn't necessarily[1]. Phone calls are not priced on a cost-plus
basis.

[1] Although it probably does cost the mobile phone company more to carry
the call from a handset to the interconnection point, than it would cost
many landline operators. If "cost" takes everything into account.


You may find there is an 020 0 or 020 1 number luring behind the new 0843
one. At some point I may investigate it. Train tracker (national rail) hides
behind such numbers.

For the time being no more finding out if the trains are running till I
either get to the station, or can get a usable 3G signal and connection on
my phone at the LST end.

I had email correspondence with TfL about getting rid of the 020 7 number
and it came down to;

1 a new phone system at there end
2 a new phone provider there end
3 better way to manage the call flows and traffic
4 not being tied into a 020 7 number which generally terminated on the
'correct' exchange.

NGN numbers can be re-pointed and moved about with little effort - its much
harder to move a geo number.