Empty SiM Card - Help please

[ashbypower]

Hi looking for assistance from you knowlegable lot!!
Our new alarm system runs on the GSM telephone sytem, however it requires a SiM card to call the centre, us or any number programmed into it.
This card must be blank before we programme the numbers, as it call them in order of storage. Now the crunch is the PAYG card we have has o2 service numbers "burnt" into it, by this I mean these numbers re appear even after removal!!. Question is does any one know how to permanantly remove these?? or a supplier of cards that does not "burn" no's on? Supplier does not supply Sims says it's a nown problem but can's/unwilling to help

Thanks in advance

[benc]

Hi,

I believe providers use something called the STK - SIM Application Toolkit (http://en.wikipedia.org/wiki/SIM_Application_Toolkit) to add these numbers on to the phone.

I don't think the numbers are stored in the phone book, but phones will look for the STK when they load the sim card details.

Have you tried testing the alarm just adding your numbers into the phone book?

What phone are you looking at the sim card with? It might be worth looking at it with another phone, to see if the numbers appear in the phonebook there.

If I put my sim card into a nokia, I see extra O2 menus.. however, putting them into my blackberry, the phonebook is empty..