Thanks, buffs. There's nothing in the call timers that affects the number of rings before an auto attendant answers - at leat not in 5.0.6. I did get around it by sending that one line card port to the ATA port (we're not using it for anything on this system), then setting the call coverage for that user to the AA. This way it rings 3 before the AA picks up and gives me the time I need to do what I had to do.
Another option that I found is to map a button on a phone to that line card port, then set the Time Out value on the port > modify screen for the amount of time that you want it to wait. This is a little cleaner, but burns a button on a phone somewhere.
Thanks again for the reply!!
A calm sea has never developed a great sailor.