Anyone have one of these and know how to get it to display your own phone number ??

On my own Sony Ericsson I simply touch the volume control and get an about page up with my number, alarm time, memory etc but cant for the life of me find how to display (wife's) own number on the 5230 itself.

Just now I've entered it in the contact list as "my number" but thought there must be a simpler way.

I've tried google but couldnt see anything either.

On mine my number can be brought up by selecting the following; Contacts > Options > SIM numbers > My numbers

Thanks, that option is there on this one too.