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November 30, 2008  1:38 AM

Beware Extension ’9011′

Posted by: Tony Bradley
9011, extension 9011, international direct dial, toll fraud, VoIP, VoIP security

If you have ever used a corporate phone system, you are probably familiar with the concept of dialing '9' to get an outside line. That allows employees to simply dial extensions to communicate internally, but still use the normal plain old telephone system for placing calls outside of the company....


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