[patrickg_zill]

A friend who is in the voip business said that the calling card companies can buy software to manage the billing. In the billing software itself is a tunable to determine how much fraudulent charges to add to each call.

For instance, when a call is made, add a certain number of seconds to the call amount at the end of a call.

So if you add 5 seconds to a call and are doing 6 second billing, then on average about 84% of customers will be charged an extra increment of time. Who keeps track of their calls to such an exact time? Nobody.

[digi_owl]

Sounds like a real life variant of redirecting the cents hidden by rounding.