Hi all,<div><br></div><div>I&#39;m making progress on the SIM/Filesystem applet. Data access commands are working, I&#39;m now working on writing commands that send replies formatted as defined in TS 11.11 instead of FCI responses.</div>


<div><br></div><div>I need input from you: I&#39;m only a &quot;smart card&quot; guy, I can do &quot;whatever is needed&quot;, but I need to define *what* is needed with you. I know especially nothing about GSM itself except that the MS talks with the SIM to manage cryptography, store SMS and phonebooks entries, etc.</div>


<div><br></div><div>The SIM obviously relies on a filesystem. Some files are defined as mandatory in TS11.11, so I will include them, but their size is not always fixed. I&#39;m opening this thread to define this kind of information.</div>


<div><br></div><div>-what should be the N value for files whose size is defined by &quot;3*N, N&gt;=4&quot;?</div><div>-what optional files will be needed when the layer 2-3 will be ready to talk with the SIM?</div><div>

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</div><div>I let you read the TS11.11 spec to make your choice.</div><div><br></div><div>Thanks,</div><div><br></div><div>Sebastien</div><div><br></div>