<div>I hate to burst your bubble but DOS attacks are a fact of life for IP based services. The bigger you get the more of a target you are. There are a ton of DOS prevention/mitigation appliances/services available in today's world. But they all rely on the same thing: having more bandwidth/capacity than your attacker.
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<div>I've seen DOS attacks against ISP customers of mine that were pushing over a million packets per second across 50+ peering points. Not many networks can absorb that kind of thing.</div>
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<div>If your phones are that critical to your business you need to get dedicated service (aka T1), or switch to a service with static registration that can be protected with a good firewall.</div>
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<div>Max<br><br> </div>
<div><span class="gmail_quote">On 1/23/06, <b class="gmail_sendername">JCC</b> <<a href="mailto:jaycard@bellsouth.net">jaycard@bellsouth.net</a>> wrote:</span>
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<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I've had problems for the last couple of weeks regarding incoming calls. Cant hear the party calling me (their voice sounds garbled/scrambled). If you haven't done so yet, I would recommend you post your complaint on their online forum as well under 'bugs'. You usually get some good responses from other Teliax users regarding the problem.
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<p><b><font face="Tahoma" size="2"><span style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</span></font></b><font face="Tahoma" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> <a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">
asterisk-users-bounces@lists.digium.com</a> [mailto:<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">asterisk-users-bounces@lists.digium.com</a>
] <b><span style="FONT-WEIGHT: bold">On Behalf Of </span></b>Ross C<br><b><span style="FONT-WEIGHT: bold">Sent:</span></b> Friday, January 20, 2006 8:40 PM<br><b><span style="FONT-WEIGHT: bold">To:</span></b> 'Asterisk Users Mailing List - Non-Commercial Discussion'
<br><b><span style="FONT-WEIGHT: bold">Subject:</span></b> RE: [Asterisk-Users] Teliax Down?</span></font></p></div>
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<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I was having trouble too. I had trouble yesterday as well. I called and David said it was a "massive DDOS". Seems to get fixed pretty quickly when it does happen (5 minutes or so); however, for a business, 5 minutes without phones (people can't get a hold of your company) isn't really acceptable IMO.
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<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Also on co3. I couldn't even access their website during that time…</span></font></p>
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<p><b><font face="Tahoma" size="2"><span style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</span></font></b><font face="Tahoma" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> <a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">
asterisk-users-bounces@lists.digium.com</a> [mailto:<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">asterisk-users-bounces@lists.digium.com</a>
] <b><span style="FONT-WEIGHT: bold">On Behalf Of </span></b>Rusty Dekema<br><b><span style="FONT-WEIGHT: bold">Sent:</span></b> Friday, January 20, 2006 5:42 PM<br><b><span style="FONT-WEIGHT: bold">To:</span></b> Asterisk Users Mailing List - Non-Commercial Discussion
<br><b><span style="FONT-WEIGHT: bold">Subject:</span></b> [Asterisk-Users] Teliax Down?</span></font></p></div>
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<p><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt">Is anyone else experiencing trouble with Teliax? I can only intermittently register to, and am not able to place any outgoing calls through my assigned gateway;
<a onclick="return top.js.OpenExtLink(window,event,this)" href="http://voip-co3.teliax.com/" target="_blank">voip-co3.teliax.com</a>. <br><br>-Rusty</span></font></p></div><br>_______________________________________________
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</div><br><br clear="all"><br>-- <br>Max Clark<br><a href="http://www.clarksys.com">http://www.clarksys.com</a>