Vibrating pagers are among the useful equipment for establishing order and speeding up servicing in any place that requires a queue management system. Due to its unique design, model RV-200 is more commonly used in hospitals, clinics and treatment centers. To let the patients know that their turn has come, the number of the designated pager is entered into a transmitter which then informs the patient by activating vibrating, sound and light alerts on the pager, which are suitable alternatives to traditional techniques such as calling out.