SIM Access

Harald Welte laforge at
Fri Mar 9 17:32:29 CET 2007

On Wed, Feb 21, 2007 at 01:47:43PM -0500, Eric Johnson wrote:
> Will the interface to the TWL3014 allow for any direct access to the SIM?

theoretically yes, but I haven't yet tested that.

> I'm meaning, by this access to any additional applications (using a 
> different logical channel) or SIM Toolkit functionality?
> I'm assuming all the SIM Toolkit functionality will be handled by the 
> S3C2410 but I couldn't seem to find any references to this.

We don't support SIM toolkit yet, since we don't think it's a high
important item at all.  In fact, it's not even on our roadmap, similar
to MMS.

> It would really great if we can write applications that access the SIM 
> directly or at least in the more restricted way that JSR 177 provides.
> TS 07.07  has the Generic SIM access AT command +CSIM but this is only 
> optional.

The Neo1973 will support +CSIM, but for security reasons, no access to
GSM applications (instruction class 0xA0) is allowed.

> Is there any  documents that would provide information on this or is 
> this all blocked by TI?

Those documents are confidential by TI.  Also, we currently need all our
"communication bandwidth" with TI for other issues. But please be
assured that we try to get at least some of that public.  But I can't
promise anything :(

- Harald Welte <laforge at>         
Software for the world's first truly open Free Software mobile phone

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