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<div class="">The IMSI Sniffers are pretty much redundant as they rely on GSM (2G) operation, once phone</div>
<div class="">Is in 3G or 4G LTE Network it does not work as It is encrypted and the IMSI appears to be 2G only</div>
<div class="">(The DIY) ones anyway. You can purchase ones for $$$$$$ which work on 3G apparently.</div></div></div></div></blockquote><div><br class=""></div>This is my understanding too.<br class=""><blockquote type="cite" class=""><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; font-size: 14px; font-family: Calibri, sans-serif;" class=""><div class="">
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<div class="">You would need to flood the network with a noise generator to get then into 2G mode and I am sure</div>
<div class="">That will draw some attention :)</div></div></div></div></blockquote><div><br class=""></div>You would hope it would but never say never.<br class=""><blockquote type="cite" class=""><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; font-size: 14px; font-family: Calibri, sans-serif;" class=""><div class="">
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<div class="">I have not looked into the SS7 in detail.</div></div></div></div></blockquote><div><br class=""></div></div><div><br class=""></div><div>It’s been 10 years since I had anything to do with SS7, way back then this was all done over E1 links between carriers. You usually needed a some expensive gear to be able to monitor/analyse this traffic. I’m sure there are a lot of carriers that are doing this over IP now, which would only make it easier. </div><br class=""><div class="">If you are in a position to be able to sniff SS7 traffic you can see all of the signalling or call setup information you need to be able to intercept a call going over that network. Also if you have the ability to sniff SS7 traffic you probably have the ability to be able to sniff the voice channel too.</div><div class=""><br class=""></div><div class="">All very doable.</div><div class=""><br class=""></div><div class="">Jason</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div></body></html>