Disclosed herein is a communication system for enabling a first communication apparatus and second communication apparatuses to communicate with one another over a network. According to one embodiment, a method of distributing processing of a dataset maintained by a mainframe from the mainframe to one or more of a plurality of servers can comprise initiating a job on the mainframe. Driver circuitry, coupled to the control terminal of the switching device, is operable to drive the switching device. The distal pair of shape memory elements lie on an offset plane to the plane of the proximal holes and are kept in their corresponding seats by a distal cover fixed to the rod. The PDU status report provides to the RNC the status of all successfully received PDUs.