That's the thing I don't get - if a dialer customer doesn't immediately hangup on answering machines, and gets past the 6-second mark, "magically", everyone stops considering it dialer. Their rates then drop dramatically. That is, the dialer people are literally costing themselves more money by aggressively hanging up.

OTOH, it seems like a lot of people in telecom can't do simple math. For instance, the desire of customers wanting to buy flat rate for a very non-flat area. It's trivial to show that they'll never end up paying less on a flat rate, but they still insist.

If the stats are good, then why would any carrier care about the content? A lot of dialer is legal (like political dialer).