I like Byron Quick's "deal": In his most rural Georgia accent, at the first pause, he asks, "Do you have a dawg?" Regardless of their answer, he points out, "If you have a dawg, your stress won't be as bad. It's real good for you to have a dawg." And on and on and on.
After all, for these folks, time = money.
I usually ask where they're located. Then I ask about the weather. "Gettin' plenty of rain?" And, at some point, "How's your mom'n'em?"
And then again I often just hang up.
, Art