A work bench includes a frame, a bench surface on the frame with the bench surface including at least two members, one of which is movable along the frame for clamping a workpiece between the members. A receiver detects a preamble from a transmission bit string. The quantity will be decremented a the WCD uses the service, and the WCD may be precluded from benefiting from the cellular-PBX integration service upon exhaustion of the balance.