A technique for prioritization of access and paging in cellular communications systems. The connector cable positioner can define at least one groove. A simple clamping device, for example a clamping claw, is sufficient for fastening the cutting body on the tool body. A dummy region, the entire surface of which is covered by a combination of the tensile stress film and the compressive stress film, is disposed on the surface of the semiconductor substrate. When a change in the topology is detected, the detecting node increments the session number and broadcasts the change in topology.