On Fri, Feb 10, 2012 at 20:39, Jack Jones <span dir="ltr"><<a href="mailto:sanctuarys3172@yahoo.com">sanctuarys3172@yahoo.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><div style="font-size:12pt;font-family:times new roman,new york,times,serif"><div><span>What is the purpose of a "Sim" other than to retain small pieces of data in different channels,,it seems the credit is retained at the server end by the provider who filters your useage and charges you accordingly for a long while i thought the credit was held on the sim itself ,,this is not the case and if you could swap sim;s quickly and intervene at the correct time of the "handshake" you would have a free subscription or at least be able to change provider.---is this correct??<br>
</span></div></div></div></blockquote><div><br>Short answer:<br>The sim card is needed for identify your account.<br>It is a little computer with memory... it has lots of <br>security stuff. <br><br>Full answer would take more time...<br>
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