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Saturday, November 22, 2008
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Securing the Line Part 6 - Is Phone Spam Nearing?

Everyone is virtually familiar with email spam. It's constantly generated, attempted to be filtered, and we eventually receive a fraction of it. There is quite an argument surrounding the best filtering and protection procedures and strategies, yet a lot of spam can be stopped before it's even sent. How? Simply don't let the would-be "spammer" get a hold of the address in the first place.

In parallel, the modern-day worldwide telecommunications network has the same exact issue. Now, "phone spammers" have a much larger, and cheaper, arsenal at their fingertips. Take a mental inventory of how many DIDs or outward-facing phone numbers your organization has. Now, ask yourself how many of those numbers are published or placed on websites. Quite a few, right?

There's nothing worse than flooding a corporate switchboard or administrative assistant's office with a barrage of phone calls for discount medications. Email spam, even when dropped into the user's mailbox inadvertently, is still easier to filter. A human can relatively filter messages based on sender and subject alone very quickly and accurately without actually opening the message. Can you filter every phone call based on a falsely-generated Caller ID? Sorry, but if my phone rings with a call from "The Pentagon", chances are I'll answer it or my assistant will put it through.

Many of you are likely wondering: phone spam isn't a problem... yet. We need proactive measures now, like CLID authentication and verification techniques, route verification systems to guarantee authenticity of inbound calls, etc.

Simply put, this is a problem that will eventually affect us all. However, similar to the email situation that has now become a high-grossing industry, any response to phone spam will likely be reactionary.

Let me know what you think! Is this problem something that deserves more attention, now?

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About Matthew Nickasch

Nickasch has been very involved in IT since he was just 13. His current and previous consulting experience includes systems architecture, virtualization, and converged networks for the financial, education, and healthcare industries. Matthew currently attends the University of Wisconsin-Platteville, where he also works as a network management assistant. While his interests include directory services and routing protocols, Nickasch's focus is on converged networks and voice over IP.

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The opinions expressed in this Weblog are those of the writer and may not represent the opinions of Network World.

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