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The middle-of-the-night call goes to the owner's cell. It is answered after a few rings, or it is not, and the caller has already dialled the next company on the list.
The owner's cell
A night desk staffed by a person costs more than the few calls it would take, so the phone follows the owner home — and the owner is human. The calls that are missed are the ones that pay best, because in the middle of the night there is no shopping around.
