No wonder I haven't been able to get my TDM400 card working after all these months of struggling.
You see, I had installed it in a vacant spot without Inserting the four-pin 12-volt connector into the white plastic slot on the rear of the TDM400P card.
(Dumb, but that's life)
So in order to celebrate this fantastic achievement I implemented a state-of-the-art (not really) dialplan. When you dial 611, you are connected to a sexy female voice that says 'hello world' and then hangs up.
The wonders of modern technology, you might say.