A device for aligning the optical axis of a camera is disclosed. The system and method assign the transaction to an employee of the casino and sense a biometric characteristic of the employee at a jackpot fill station. A securing member is attached to the user’s clothing article, such as a waist belt. The relay node 5i adds the monitoring information to the signal 2 at a predetermined period of time. When a call is received by an IVR service node, the application is executed by calling the SIBBs to apply certain treatments to the call. The first capacitor includes a terminal connected to the second power source, and another terminal connected to a node of the first power source and a second terminal of the third switch.