<div><div dir="auto">There is a product that does exactly this. </div><div dir="auto">SecureLogix.  They use the acronym TDOS</div><div dir="auto">(Telephony denial of service)</div><div dir="auto">It also provides other benefits but TDOS attacks are the only reason I have sold it in the past.</div><div dir="auto"><br></div><div dir="auto">Steve Brickhouse </div><br><div class="gmail_quote"><div>On Mon, Apr 16, 2018 at 9:49 AM Matthew Loraditch <<a href="mailto:MLoraditch@heliontechnologies.com">MLoraditch@heliontechnologies.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">





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<p class="MsoNormal">So this is a curiosity question, we had a prospective client call us who is essentially getting robocalled to oblivion. Some scammer has robo dialers setup and is flooding all of their trunks. He got a ransom, stopped and then started again.
 He was originally using one number and then when the telco blocked that switching to random sources.<u></u><u></u></p>
<p class="MsoNormal">Are there are any legitimate defenses to this sort of thing?<u></u><u></u></p>
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<div><table cellpadding="0" cellspacing="0" border="0" style="width:100%;font-size:0"><tbody><tr><td align="left" style="vertical-align:top"><table cellpadding="0" cellspacing="0" border="0" style="font-size:0"><tbody><tr><td style="padding:0 10px 0 0"> </td><td align="left" style="padding:10px 0 10px 10px;vertical-align:middle"><table cellpadding="0" cellspacing="0" border="0" style="width:100%;font-size:0"><tbody><tr style="font-size:14.67px;color:#f3800b;font-style:normal;font-weight:700;white-space:nowrap"><td align="left" style="vertical-align:top;font-family:Calibri,Arial,sans-serif">Matthew Loraditch<span style="font-family:remialcxesans">​</span></td></tr><tr><td align="left" style="vertical-align:top"><table cellpadding="0" cellspacing="0" border="0" style="font-size:14.67px;color:#808080;font-style:normal;font-weight:700;white-space:nowrap"><tbody><tr><td align="left" style="vertical-align:top;font-family:Calibri,Arial,sans-serif">Sr. Network Engineer</td></tr></tbody></table></td></tr><tr><td align="left" style="vertical-align:top"><table cellpadding="0" cellspacing="0" border="0" style="font-size:0"><tbody><tr><td align="left" style="padding:10px 0 0;vertical-align:top"><table cellpadding="0" cellspacing="0" border="0" style="font-size:14.67px;color:#808080;font-style:normal;font-weight:400;white-space:nowrap"><tbody><tr><td align="left" style="vertical-align:top;font-family:Calibri,Arial,sans-serif"><span style="color:#f3800b">p:</span> <a href="tel:443.541.1518" id="m_-1999171843493480072LPlnk689713" style="text-decoration:none;color:#808080" target="_blank"><strong style="font-weight:400">443.541.1518</strong></a></td></tr></tbody></table></td></tr></tbody></table></td></tr><tr><td align="left" style="vertical-align:top"><table cellpadding="0" cellspacing="0" border="0" style="font-size:14.67px;color:#808080;font-style:normal;font-weight:400;white-space:nowrap"><tbody><tr><td align="left" style="vertical-align:top;font-family:Calibri,Arial,sans-serif"><span style="color:#f3800b">w:</span> <a href="http://www.heliontechnologies.com/" id="m_-1999171843493480072LPlnk689713" style="text-decoration:none;color:#808080" target="_blank"><strong style="font-weight:400">www.heliontechnologies.com</strong></a></td><td align="left" style="vertical-align:top;font-family:Calibri,Arial,sans-serif"> | </td><td align="left" style="vertical-align:top;font-family:Calibri,Arial,sans-serif"><span style="color:#f3800b">e:</span> <a href="mailto:MLoraditch@heliontechnologies.com" id="m_-1999171843493480072LPlnk689713" style="text-decoration:none;color:#808080" target="_blank"><strong style="font-weight:400">MLoraditch@heliontechnologies.com</strong></a></td></tr></tbody></table></td></tr><tr><td align="left" style="vertical-align:middle"><table cellpadding="0" cellspacing="0" border="0" style="font-size:0;line-height:normal"><tbody><tr><td align="left" style="vertical-align:bottom"><img src="cid:162cf179dfc452369c11" border="0" alt="" style="width:400px;max-width:100%"></td></tr></tbody></table></td></tr><tr><td align="left" style="vertical-align:top"><table cellpadding="0" cellspacing="0" border="0" style="font-size:0"><tbody><tr><td align="left" style="padding:10px 0 0;vertical-align:top"><table cellpadding="0" cellspacing="0" border="0" style="font-size:0"><tbody><tr><td align="left" style="vertical-align:top"><table cellpadding="0" cellspacing="0" border="0" style="width:100%;font-size:0;line-height:normal"><tbody><tr><td align="center" style="padding:0 3px 0 0;vertical-align:top"><a href="https://facebook.com/heliontech" id="m_-1999171843493480072LPlnk689713" style="text-decoration:none" target="_blank"><img src="cid:162cf179dfd817312c42" border="0" title="Facebook" alt="Facebook" style="width:18px;max-width:100%"></a></td></tr></tbody></table></td><td align="left" style="vertical-align:top"><table cellpadding="0" cellspacing="0" border="0" style="width:100%;font-size:0;line-height:normal"><tbody><tr><td align="center" style="padding:0 3px 0 0;vertical-align:top"><a href="https://twitter.com/heliontech" id="m_-1999171843493480072LPlnk689713" style="text-decoration:none" target="_blank"><img src="cid:162cf179dfde273c4b83" border="0" title="Twitter" alt="Twitter" style="width:18px;max-width:100%"></a></td></tr></tbody></table></td><td align="left" style="vertical-align:top"><table cellpadding="0" cellspacing="0" border="0" style="width:100%;font-size:0;line-height:normal"><tbody><tr><td align="center" style="padding:0 3px 0 0;vertical-align:top"><a href="https://www.linkedin.com/company/helion-technologies" id="m_-1999171843493480072LPlnk689713" style="text-decoration:none" target="_blank"><img src="cid:162cf179dfdf7c070c14" border="0" title="LinkedIn" alt="LinkedIn" style="width:18px;max-width:100%"></a></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></div></div>

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