A second communication system starts transmission of direct data received from a core network apparatus without waiting to receive an end marker when the end marker indicating the last forwarding data forwarded from the first communication system is not received within an end marker waiting period. The method includes forming a mesh pattern defining a storage node region over a semiconductor substrate, forming a lower electrode over the semiconductor substrate and sidewalls of the mesh pattern, forming a dielectric layer over the semiconductor substrate including the lower electrode, and forming an upper electrode over the dielectric layer. When the drug dose is removed from the device, the medication tray locks until the next minimum dosage time interval has elapsed. A plurality of paths between the source device and the destination device is identified.