number8bus wrote:
> Hi there,
>
> If I wanted to dial a mobile phone number on my landline in London to
> the phone which is located in New York, would I need to put extra
> digits?

The whole point of the system is that you can't be expected to know
where a mobile phone is when you call it, so you dial the number as
usual and the system works out where to route it. Similarly, you pay to
call the number you dial, and any extra roaming charges are not your
responsibility.