stox writes "As many of you know, AT&T has implemented caps on DSL usage. When this was implemented, I started getting emails lettting me know my usage as likely to exceed the cap. After consulting their Internet Usage web page, I felt the numbers just weren't right, so with the help of Tomato on my router, I started measuring my usage, and ended up with numbers subnstantially below what AT&T was reporting on a day to day basis. Typically around 20-30% less. BTW, this usage is the sum of inbound and outbound. At this point, I decided to contact AT&T support to determine what exactly they were defining as usage, as their web pages never really define it. Did I get a suprise, after several calls, they finally told me that they consider the methodology by which they calculate bandwidth usage to be PROPRIETARY. Yes, you read that right, it is a secret. They left me with the option to contact their Excutive Offices via snail mail, email was not an option.
So, I bring my questions to you, all knowing slashdotters, are there any laws that require AT&T to divulge how they are calculating bandwidth? Should I contact my state's commerce commission or the FCC to attempt to get an answer to this?"