There is a need for a forensic diagnostic capability to facilitate a greater understanding of why xDSL transceivers are subject to otherwise inexplicable service interruptions during Showtime. A bill payment request is received from an operator of an on-line banking bill payment web site. The housing assembly further includes a frame sized to receive the cover, and a first housing structured to couple with the frame, such that the cover, the frame, and the first housing are structured to define an enclosure sized to contain electrical components for the mobile device. The preferred primary filter cartridge is conical in shape. An exemplary embodiment also provides a family of delivery devices that facilitate flexibility, durability andor proper installation of one or more medical appliances in a single procedure.