Possibly off topic - Voice DDoS? - DFWstangs Forums
 
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post #1 of 2 (permalink) Old 11-29-2007, 09:34 AM Thread Starter
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Possibly off topic - Voice DDoS?

Verizon wireless tells me there is no mechanism to block incoming phone calls destined to one of their wireless phones. IE, if you are getting harrased you are screwed, and must change your number or take 'legal action', per Verizon. And also, there was no way for them to trace 'unavailable' or non caller-ID bearing calls.

To get any fancy sort of call tracing, I'm fairly sure Verizon would have to get the police/FBI involved, which I doubt is a quick and easy process, or appropriate for a small scale incident.

So, this leads me to wonder. Whats to stop someone from DDoSing someone's voice lines rendering a business unavailable who's mission critical process is inbound telephony? Increased network load would also become an inderect result, damaging network availability in general.

I'm certianlly not the 1st person to think of this, but it does have some intersting implecations. If in fact there is no easy way to "null route" calls from a particular source(s) to a wireless customer, the door is fairly open to crippeling a person(s)/company.


--Scott

"Jesus has my heart, but Whiskey has my liver" --Jason Boland
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post #2 of 2 (permalink) Old 11-29-2007, 10:42 AM
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I'm part of the disaster recovery team for a call center for a company in St. Louis. We also have a recovery site in N. Texas which is where I do a majority of my work.

In your given situation, if a DDoS happened, I would imagine that the main phone branches would be disabled until the attack can be traced or halted, and our DR site would kick in and take the load. I'm sure its the same for most business to have redundancy somewhere for those types of disasters, especially if the type of business is call center based.

As for security measures to prevent this from happening in the first place, I'm sure that all depends on the type of telephony your using, weather it be SIP, VOIP, Avaya, ect.

On a side note, they probably CAN block the call, but won't due to some policy...they make more money by not blocking the call...just my .02.
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