On Tue, Aug 31, 2010 at 12:56 AM, Joseph Wayodi <jwayodi@gmail.com> wrote:

On Mon, Aug 30, 2010 at 1:17 PM, Joseph Wayodi <jwayodi@gmail.com> wrote:

On Mon, Aug 30, 2010 at 11:12 AM, Jangita <jangita@jangita.com> wrote:

Aparently there are some modems out there that can access the SIM card menu and perform actions; I found some; just didn't research further

Research ended here
http://www.gsmmodemsms.com/SIM-ToolKit-API.html

Hi Jangita,

Thanks for the link. I will check it out, and give feedback.

The API at that link (which they give you when you buy a modem from them) is a Visual Basic .NET wrapper around the low-level STK (SIM Application Toolkit) commands.

Looking through the 3GPP TS 11.14 technical specification: <www.turkcell.com.tr/c/oth/terminalpdf/11.14.pdf>, it appears that you can automate SIM applications (menus) from STK.

And you can issue STK commands using your modem's AT commands (as long as the modem supports STK, I think). Look at <http://www.gsmmodemsms.com/Wavecom-GSM-Modem-AT-Commands.pdf> and <http://www.gsmmodemsms.com/Siemens-GSM-Modem-AT-Commands.pdf>.

Now, working with USSD menus seems more complicated. Any tips, anyone?

Joseph Wayodi.

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