Your phone bill varies from month to month in many cases. Actually- maybe not. I have been using Vonage for my home phone service for about 5 years now and the flat fee is what it is. I don’t pay for voicemail service, or any additional amounts for long distance like my cable provider charges customers of their digital voice service (although I think they finally realized those things are supposed to be included. now they just charge $15 a month more for fewer features). I just pay the same amount every month and I get all of the features and services available (psst – if you want to sign up for Vonage drop me an email. We can both get 2 months of free service if I refer you).
Ah, but I digress. My phone bill has been the same for years, but even phone bills that vary tend to stay within a certain range. If you run a business perhaps the bill is $2,000 one month, $2250 the next month, and $1900 the month after that. You would probably be pretty shocked then to open the mail and find a bill for $120,000!!
That is what happend to one Australian company. Preliminary reports from the investigation suggest that the attackers gained access to both traditional PBX and VoIP communications systems and place more than 11,000 unauthorized international calls in a span of about 2 days. Toll fraud has been around forever, and VoIP attacks are on the rise. Make sure you understand the threat and how to protect your systems.