hsg@h-gee.co.uk declared for all the world to hear...
>
> Perhaps if I posed this another way.
>
> I have a contract with T-Mobile. My personal phone has it's own number but the
> phone fitted to my car needs a SIM card and is fixed.
>
> Is there any way I can get a SIM card for the car phone with the same number as
> my personal phone?

Move to Orange of Vodafone. Both networks offer this service. Orange
call is Single Number, Vodaofne call it MultiSIM.
--
Regards
Jon